# About ZetaChain

We’re building something ambitious at ZetaChain: the first universal blockchain that connects everything—Bitcoin, Ethereum, every chain. We’re backed by top investors, live on mainnet, and building the future of blockchain technology. If you’re excited about working on big, meaningful problems with a world-class team, you’re in the right place.

We are seeking an experienced and dedicated Senior Blockchain Security Engineer to join our Security team and play a crucial role in safeguarding the ZetaChain ecosystem.

Why You Want To Work Here

• Impactful Role: Play a pivotal role in shaping the future of a leading blockchain protocol.
• Remote Flexibility: Enjoy the freedom and flexibility of a remote work environment, ensuring a work-life balance with quarterly team meet ups to get to know each other in person.
• Cutting-Edge Technology: Dive deep into the latest advancements in blockchain technology with ZetaChain’s innovative protocol.
• Continuous Learning: Stay updated with the rapidly evolving blockchain landscape, ensuring you’re always at the forefront of the industry.
• Commitment to Open Source: We are committed to supporting open source software and use high quality open source tools internally when possible.

Find out more about our high performance culture.

Job Description

This role is focused on securing the broader ZetaChain ecosystem by working hands-on with independent third-party developer teams — from early-stage grant recipients to established partners — to help them build and maintain secure blockchain applications. These teams are critical to our ecosystem’s growth.

The ideal candidate has a strong background in product security, TypeScript/JavaScript/React programming, and Web3 development, along with deep knowledge of wallet security, dApp threat modeling, and account abstraction (EIP-4337). You should be comfortable acting as both a technical expert and a trusted partner to external teams.

Responsibilities

• Work directly with external ecosystem developers to advise on smart contract, dApp, and wallet security best practices throughout the development lifecycle
• Collaborate with internal and external teams to identify high-risk code changes in both React/TypeScript frontends and smart contracts, participating in security-focused code reviews
• Develop and implement innovative security testing methodologies specific to blockchain and DeFi environments
• Analyze new and emerging dApp and wallet attack vectors (phishing, session hijacking, malicious npm packages, RPC manipulation) and assess their potential impact on the ZetaChain ecosystem
• Lead or coordinate security audits and penetration tests for ecosystem projects, and drive timely remediation of findings
• Contribute to and help manage the bug bounty programs by validating and triaging reported vulnerabilities
• Create and maintain security guidelines, best practices, and documentation tailored for ecosystem developers

Requirements

• Location:
  • Hybrid in San Francisco is preferred (2-3 days a week)
  • Open to fully remote for exceptional candidates that align with US Timezones
• 3+ years of experience in cybersecurity, with a focus on blockchain and Web3 technologies
• 2+ years of software development experience working with smart contracts (Ideally Solidity)
• Experience with security tools and techniques specific to blockchain environments
• Deep familiarity with common attack vectors in Web3, such as flash loan attacks, reentrancy, and oracle manipulation
• Strong understanding of Wallet security (EIP-712, SIWE etc), account abstraction (EIP-4337), smart contract vulnerabilities and DeFi-specific risks
• Familiarity with tools and frameworks like Foundry, Slither, Tenderly, Wagmi, viem, RainbowKit
• Strong analytical and problem-solving skills with attention to detail
• Excellent communication skills and ability to explain complex security concepts to both technical and non-technical audiences

Preferred Qualifications

• Experience with Ethereum, Ton, Solana, SUI, and other major blockchain protocols
• Previous experience auditing code (Solidity, React, Typescript, Rust, Func, etc)
• Contributions to open-source blockchain security tools or research
• Active participation in bug bounty programs or capture-the-flag (CTF) competitions
• Experience implementing and managing automated security testing pipelines
• Familiarity with formal verification techniques for smart contracts
• Understanding of zero-knowledge proofs and their blockchain applications

In-Office Culture

This is a remote position but we will prioritize applicants based in the Bay Area. Many members of our team work hybrid from our San Francisco office, and we aim for 2 to 3 in-office days per week. We know life happens, whether it’s travel, appointments, or family needs and we’re flexible when the schedule needs to shift. The company is a mix of fully remote and hybrid team members.

Compensation

Base Salary: $150,000 – $200,000 (San Francisco benchmark)

In addition to the base salary, all full-time team members receive an additional 10% to 25% in liquid benefits with upside based on role, experience, and impact. We believe in building together and sharing in the long-term success of the network. Compensation packages are designed to be competitive and aligned with the growth of both the team and the ecosystem.

Let’s build the first Universal Blockchain together.

Type: Full-time in-person Sydney (AU); or, remote Bay Area (US) – office opening soon

Experience: 7+ years, Senior+/Principal/Architect

Compensation: Competitive equity/token + salary

About wh-ai

wh-ai is building the future of knowledge, enabling collaboration of both experts and AI. Our revolutionary platform implements a peer-to-peer dialectic process on a decentralized trustless network where questions are answered and verified by the fittest and most advanced AI agents. We enable a future where we can thrive in novel and abundant organic and synthetic data, expertly verified, with immutable primitives that empower the next discovery on a solid bedrock.

We’ve just closed our first financing round (backed by some super Angels and VCs) and we’re building our strike founding team to launch the public Beta and accelerate core development. Joining now is an opportunity to make an impact in days not years, creating exponential value in the community and equity/token.

The Role

We’re seeking a (Senior+/Principal/Architect) Full-Stack Engineer to lead technical development of our AI-powered verification platform. This is a high-impact role perfect for someone who thrives in a fast-paced startup environment and wants to shape the future of expert + AI verification systems.

As our technical lead, you’ll own the entire stack and shape the team - from React frontend to Node.js backend, AI integrations, and upcoming blockchain Layer 2 implementation. You’ll architect scalable solutions, integrate cutting-edge AI models, and prepare our platform for decentralized blockchain deployment.

What You’ll Do

Technical Leadership

• Lead full-stack development of our React/TypeScript frontend and Node.js/Express backend
• Architect and implement AI integrations using our API and Model Context Protocol (MCP) system supporting OpenAI, Anthropic, Gemini, DeepSeek and other top models.
• Design blockchain Layer 2 integration for decentralized verification and reward distribution
• Optimize performance of our distributed verification network with real-time WebSocket communication
• Implement advanced testing strategies including parallel test execution and comprehensive CI/CD pipelines

AI/ML Integration

• Enhance our autonomous bot system that automatically processes questions and verifications using LLMs
• Develop hybrid human-AI workflows with quality control thresholds and human oversight
• Build AI-powered verification assistance tools for human verifiers

Blockchain Development

• Architect and develop a decentralized solution for integration of tokens, incentives and rewards across L1 and L2.
• Token design
• Implement Proof of Personhood (PoP) verification systems
• Build bridges between traditional web infrastructure and blockchain networks

System Architecture

• Scale our PostgreSQL database with advanced query optimization and connection pooling
• Enhance our real-time communication systems with WebSocket reliability and performance
• Implement advanced security measures including rate limiting, authentication, and data protection
• Design microservices architecture for horizontal scaling

What You Bring

Required Technical Skills

• 5+ years full-stack development with modern JavaScript/TypeScript ecosystems, and Go or Rust or C/C++ for high performance node development.
• Expert-level React/TypeScript with advanced state management (TanStack Query preferred)
• Strong Node.js/Express backend development with real-time systems experience
• Database expertise with PostgreSQL or MySQL, complex queries, and ORM frameworks (Drizzle preferred)
• AI/ML integration experience with OpenAI, Anthropic, or similar LLM providers
• Blockchain development with Solidity, EVM, Ethereum Layer 2 solutions (Polygon, Arbitrum, or Optimism)
• DevOps and CI/CD experience with GitHub Actions, testing frameworks, and deployment pipelines

Preferred Experience

• Open-source project experience
• WebSocket and real-time systems development
• Distributed systems architecture and scaling
• Test-driven development with Jest, React Testing Library, and parallel test execution
• Payment integration with Stripe or similar platforms
• Security best practices for authentication, session management, and data protection
• Performance optimization for both frontend and backend systems
• Layer 2 deployment experience on Base, Arbitrum, or Optimism
• EigenLayer AVS development or validator operation experience
• ZK proof systems and cryptographic verification mechanisms

Soft Skills

• Startup mentality - comfortable with rapid iteration and changing requirements
• Technical leadership - ability to make architectural decisions and guide technical direction
• Problem-solving - skilled at debugging complex distributed systems
• Communication - can explain technical concepts to non-technical stakeholders
• Ownership mindset - takes full responsibility for feature delivery and system reliability

Aragon is a team of 24 people that spans a broad range of backgrounds, interests, and geographies. We’re entrepreneurs, technologists and skeptics, troublemakers and problem solvers, who are building unstoppable tooling for the creation and management of Onchain Organizations. Our mission is to enable any organization to experiment with governance at the speed of software and we envision a world where humans can coordinate by the rule of code, reducing the need for enforcement by trusted systems, often through the use of violence.

Aragon launched the first DAO framework in 2017, securing over $40 billion in assets for the likes of Lido and Curve. We are currently building Aragon OSx & App, a new and improved tech-stack supporting projects such as Polygon and Taiko.

As a Smart Contract Developer at Aragon, you will be joining the solutions team, where you’ll be directly involved in designing and building custom integrations for clients on top of the Aragon OSx protocol.

💪 What do we expect from the Smart Contract Developer?

• Transform client needs into technical designs and production-ready code, always considering the user.
• Lead projects from inception to live maintenance, emphasizing secure and high-quality delivery at every phase.
• Exhibit deep expertise in Solidity, having not just deployed smart contracts but designed intricate contract architectures addressing real-world business challenges.
• Have an understanding of Decentralized Finance (DeFi) and the workings of major DeFi protocols. Foster enthusiastic collaboration with other product and engineering squads, further deepening everyone’s knowledge of the ever-expanding technologies of web3.
• Engage in daily stand-ups, knowing when your expertise is critical, and step up to proactively solve your teammate’s challenges.
• Build solutions with a strong grasp of software architecture best practices and common standards across the Ethereum ecosystem and in the Decentralized Finance space.

⚠️ Minimum requisites

• 3+ years delivering software to real users, ideally in a fast-paced startup environment
• Expert-level Solidity experience, including the design and optimization of advanced smart contract systems
• Strong foundation in smart contract security, with a history of successful audits and knowledge of common vulnerabilities
• Strong working proficiency in foundry and hardhat
• Familiarity with or contributions to Ethereum EIPs
• Significant technical contributions to DeFi protocols with at least 8 figures in TVL
• Fluency in typescript, and popular libraries such as Ethers (v5, v6) and viem.
• Experience working across multiple EVM networks - sidechains, OP rollups and Zk rollups
• Proven contributions to open-source projects within blockchain, cryptography, decentralized systems, or the broader web3 ecosystem
• Understanding of how to work in an agile environment, using git, and tools like Linear and Github
• Passionate about the possibilities of decentralized autonomous organizations and the impacts they may have on how humans work together to solve problems
• Excellent English and technical communication - both written and oral
• You are able to attend quarterly offsites - usually located in or around Europe - to work in person with your team

💡 Bonus skills

• Experience or certification in formal verification of smart contracts
• Knowledge or hands on experience working with other parts of our stack, like NextJS, Turborepo, Envio, IPFS
• Interest in the use of LLMs to enhance developer productivity
• Working knowledge of advanced security tools such as HEVM, Slither, Echidna, foundry Invariant tests.
• Demonstrated experience using Vyper, Go or Rust
• Proven mentoring skills, fostering a culture of growth and learning within teams
• Power user of DeFi and/or Web3 applications

We value freedom and responsibility among our contributors. In practice, this means that we’re a remotely distributed organization that’s flexible but pragmatic. The team gets together for quarterly in-person offsites where we strengthen our alignment, drive projects forward, and have fun in different locations across Europe. We will trust you to accommodate and support your team, and communicate if you ever feel stretched thin. You will get all of the resources needed to be effective, whether it’s for setting up your remote work environment or a personal development budget. You will be a part-owner of Aragon X and you are expected to work with this mentality.

This role reports to Aragon X, a Swiss AG dedicated to advancing the Aragon Project. We are an Equal Opportunity Employer supporting a community of DAO creators, developers, and users experimenting with new forms of social coordination and governance.

About the role:

Injective is seeking a Security Engineer to help strengthen and future-proof the security of our blockchain ecosystem and core infrastructure. This role blends hands-on security engineering with proactive research — you’ll identify and mitigate vulnerabilities, run offensive security campaigns, and help shape Injective’s reputation as one of the most secure ecosystems in Web3.

Responsibilities:

• Perform regular security reviews, penetration tests, and code audits across our chain modules, smart contracts, validator infrastructure, and supporting services.
• Hunt for new vulnerabilities through fuzzing, adversarial testing, and exploit development — at the protocol, network, and application layers.
• Develop internal tools to detect misconfigurations, suspicious activity, and chain-level edge-case exploits.
• Analyze emerging threats in other blockchains, rollups, bridges, or validator networks — assess Injective’s exposure, propose mitigations, and publish findings internally.
• Manage vulnerability scanning pipelines, patch management, and incident response processes.
• Audit internal systems and services (cloud accounts, access control, VPN, GitHub, secrets, endpoints, MDM, etc.) for best practice alignment
• Collaborate with core developers, validators, and external auditors to test, validate, and deploy security fixes.
• Contribute to our bug bounty program and coordinate with the security research community for responsible disclosure.
• Help define and enforce internal security policies, tooling, and education to raise baseline awareness

Who You Are

• 5+ years of experience in security engineering, offensive security, or protocol-level system audits
• Strong experience in security engineering for cloud-native or blockchain-based systems.
• Solid understanding of offensive security: vulnerability discovery, fuzzing, static/dynamic analysis.
• Strong pen-testing experience
• Experience working with or auditing blockchain protocols, validator setups, or smart contracts
• Hands-on experience securing distributed infrastructure (Linux, containers, Kubernetes, cloud networks).
• Familiarity with blockchain architectures (Cosmos SDK, Tendermint, IBC, EVM, CosmWasm, or cross-chain bridges).
• Proficiency in Go or Rust (protocols) is a must.
• Experience with Solidity/CosmWasm (smart contracts) is a plus
• Comfortable writing PoCs, threat models, or simple fuzzers to validate real-world risk.
• Self-driven, curious, and motivated to think like an attacker and design like a defender.

Bonus Points:

• Experience with Cosmos SDK, IBC, or Injective chain tooling
• Involvement in open-source security research, bug bounties, or CTFs

Why Work With Us:

• Work on high-impact security challenges at the forefront of decentralized finance
• Collaborate with a global team of protocol engineers, devops engineers, and Web3 pioneers
• Competitive compensation, generous token incentives, and flexible remote work

Job Title: Graduate Software Engineer

Starting Salary: £50,000

Location: London

Elwood Technologies is a FCA regulated firm that provides end-to-end institutional-grade digital asset Execution, Liquidity Access and Portfolio Monitoring & Risk Management Software. Built with institutions for institutions, Elwood’s EMS offers best available price execution, smart order routing and algorithmic tooling alongside a traditional finance grade Portfolio Management System. Built by industry experts with decades of combined experience in investment management and digital technology, we are now looking for Graduate Software Engineers to support our Engineering growth targets. Job Description Elwood is looking for a class of Software Engineers to embark on a 24-month graduate scheme working alongside our global team. The scheme will involve rotations across our internal teams within our Engineering department  such as UI, Backend, DevOps and Market Connectivity.. These rotations will provide a wide range of industry leading technical skills and introduce graduates to all areas of the business enabling you to become an integral part of the Elwood ecosystem and learn about digital asset markets. If you are interested in pursuing a career in the world of digital assets then this offers a great opportunity to gain hands-on experience whilst commencing your career in Software Engineering.  Key Responsibilities Develop and enhance software across the Elwood technology estate.

Work with business stakeholders to build new and maintain existing features. Meet deadlines in support of a fast-moving release cycle. Leverage new technologies and approaches with continuous improvement in mind. Work closely with Quants, Product, Algo Developers, Infrastructure and Support teams to deliver trading solutions. Contribute to all areas of software development lifecycle including design, development, integration, automated testing, and maintenance.

Qualifications / Knowledge

Degree in a STEM discipline.

Programming experience in an object oriented or functional programming language: C#, C++, Java, Python, Golang, Rust etc. Strong understanding of computer science fundamentals including design, algorithms, and data structures. Excellent analytical and problem-solving skills. Excellent verbal and written communication skills. A passion for a career in a FinTech environment, and genuine interest in the Crypto / Digital Assets space.

What we offer: 💵  Competitive salary and compensation packages 🍎 Fully paid medical and discounted dental schemes for employees and their family ✈️ Generous time off + bank holidays 🍼 Enhanced parental leave for all employees who have been with the company for one (1) year 🍔 Fully stocked kitchen and access to weekly Ubereats allowance 💪 Discounted gym scheme 🐕‍ Employee Assistance Programme 📚 Paid study leave and personal leave

Why Elwood?  

Join a series A FinTech company  and help shape the future of finance A startup with deep financial backing and a strong market presence Our platform is enabling institutional access to the most exciting growth opportunity in Finance Work with a modern technology stack and help solve high impact problems Strong client focused team with a diverse background   We’re a Global company and have modern, centrally based offices in London, New York and Singapore.

Apply Now:

About CoW DAO

CoW DAO is on a mission to protect Ethereum users from MEV and optimize trade execution across DeFi. We achieve this through the CoW Protocol, CoW Swap (a leading intent-based DEX aggregator), and the innovative MEV Blocker, which together help secure, aggregate, and route trades for optimal outcomes. We also fund values-aligned projects via the CoW Grants Program.

CoW Protocol is consistently ranked among the top DEX aggregators by monthly volume and is the largest intent-based exchange. Our MEV Blocker protects trades from harmful MEV extraction and is integrated across the Ethereum ecosystem. The CoW AMM is the only live AMM designed to protect liquidity providers from LVR (loss-versus-rebalancing).

With over 100 open-source repositories on GitHub, we’re transparent, community-driven, and deeply committed to the open-source ethos. Our real-time Dune Analytics dashboard showcases billions in cumulative trading volume and a rapidly growing user base. As we continue to scale, CoW DAO remains at the forefront of DeFi innovation, prioritizing security, efficiency, and decentralization.

Learn more

About the role

Location: We are a fully remote team, and although we hire almost globally, there is a preference for this role to be based in Europe or remote +/- 4 hours CEST time

Please note we’re not hiring from the US, Australia, or New Zealand

Position: Full-time contractor

We’re looking for a motivated Junior Backend Engineer to support the deployment of CoW Protocol on new blockchain networks, troubleshoot and debug issues, support our on-call rotation, and contribute to our engineering backlog. This role offers a unique opportunity to grow within the position and become a highly skilled Rust Engineer in a production-level Web3 environment.

This is a great fit if you’re someone early in your career who’s excited about learning Rust, solving complex problems, and taking initiative

What You’ll Do

• Help deploy and maintain CoW Protocol across new and existing blockchain networks
• Investigate and debug issues in production environments
• Participate in our on-call rotation (with additional compensation)
• Contribute to the engineering backlog and assist with feature development
• Collaborate with experienced engineers and gradually take on more ownership of Rust-based services

Who You Are

• Recently graduated or have around 3 years of backend experience
• Hands-on experience with Rust, either through personal projects, open-source contributions, or commercial work
• Solid understanding of blockchain and Web3 — you’re familiar with the space, its core concepts, and have prior exposure through work, projects, hackathons or contributions
• Strong problem-solving skills and the ability to work independently
• Proactive mindset, you take initiative and figure things out
• Comfortable working remotely in a highly autonomous, async environment

What we can offer you

• Flexible work environment: Join our hub in Lisbon or work remotely
• Token plan: Have a stake in our mission and shape the future of CoW DAO
• Periodic gatherings: Enjoy opportunities to connect with the rest of the team through regular trips
• Conference allocation: Stay up-to-date with ecosystem advancements using our conference budget
• Learning budget: Use our learning budget to support your higher ambitions
• Hardware budget: Take advantage of a hardware budget for acquiring necessary equipment
• Make an impact: You are joining a startup where you can make a huge difference. Your work matters!
• Flat hierarchies mean fewer processes and bureaucracy - see more of your ideas come to life!
• Flexible work and vacation times: Prioritize work-life balance through our robust flexible work policy and vacation allowance
• Growth: If you’re someone who loves taking the initiative and getting things done, CoW offers lots of opportunities for your individual growth

Referral Program

Earn 3.000 USDC or USD with the refer-to-earn program. More details here.

Culture

Life within the CoW Protocol is an incredible adventure! We take pride in our collaborative approach, embracing autonomy and fostering a culture of big thinking and continuous growth. We value impact, ownership, simplicity, and team spirit. Plus, we’re all about feedback, coming together, and enjoying the journey along the way!

At CoW Protocol, we strive to create a space where everyone feels included and empowered. We believe that our products and services benefit from our diverse backgrounds and experiences. All qualified applicants are considered for positions regardless of race, ethnic origin, age, religion or belief, marital status, gender identification, sexual orientation, or physical ability.

About Zscaler Serving thousands of enterprise customers around the world including 45% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry. If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler.   Our Engineering team built the world's largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 65 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy. We're looking for a Sr. Staff Software Engineer to join our platform convergence team. This is a hybrid role, reporting in the San Jose office 3 days a week.  Reporting to the Sr. Director of Software Engineering, you'll be responsible for: 

Designing and building a low-latency, high-throughput data forwarding plane using Rust, leveraging its async/await model for efficient I/O and service-oriented infrastructure Developing distributed, scalable systems with a focus on concurrency, fault tolerance, and messaging Implementing and maintaining gRPC-based APIs and services to integrate forwarding plane capabilities with control and orchestration layers Optimizing system performance through profiling tools across kernel-space and user-space Engaging in code reviews, system design discussions, technical documentation, and mentoring junior engineers

What We're Looking for (Minimum Qualifications) 

7+ years of experience with extensive experience coding with Rust, particularly in systems programming and async frameworks like Tokio or async-std Proven expertise in building resilient, observable, and horizontally scalable distributed systems Strong understanding of Linux fundamentals, including networking, namespaces, sockets, and kernel-user space interaction Proficient in container-based environments, Git, CI/CD workflows, and performance instrumentation

What Will Make You Stand Out (Preferred Qualifications)

Experience with systems languages like C/C++ or Go, particularly in performance-critical environments Familiarity with Linux networking stacks, kernel-space technologies (eBPF, XDP, DPDK), bare-metal deployments, Kubernetes networking, service meshes, or observability tools Hands-on experience with gRPC, Protobufs, service-oriented architectures, and L2–L4 networking protocols (TCP/IP, UDP, QUIC, VLAN, routing, encapsulations, etc.)

LI-JM1

LI-Hybrid

 Zscaler’s salary ranges are benchmarked and are determined by role and level. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations and could be higher or lower based on a multitude of factors, including job-related skills, experience, and relevant education or training. The base salary range listed for this full-time position excludes commission/ bonus/ equity (if applicable) + benefits.Base Pay Range$154,000 - $220,000 USDAt Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure. Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

Various health plans Time off plans for vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more!

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

Apply Now:

Who are we? FalconX is a pioneering team of operators, investors, and builders committed to revolutionizing institutional access to the crypto markets. Operating at the intersection of traditional finance and 
cutting-edge technology, FalconX addresses the industry's foremost challenges: Navigating the digital asset market can be complex and fragmented, with limited products and services that support trading strategies, structures, and liquidity found in conventional financial markets. As a comprehensive solution for all digital asset strategies from start to scale, FalconX operates as the connective tissue empowering clients with seamless navigation through the ever-
evolving cryptocurrency landscape.About The Role: We’re looking for a Senior Trading Systems Developer with a strong background in Java and Python to design and build next-generation testing and automation tools for our institutional trading platform. This role is central to enabling automated validation of order lifecycles, venue connectivity, and low-latency behavior across our trading stack. You’ll work closely with strategy developers, support engineers, and QA to deliver a robust automation framework that improves developer velocity, system reliability, and test coverage for trading workflows. Ideal candidates will have experience in OMS/EMS systems, deep knowledge of trading protocols like FIX, and a passion for building tools that bridge development and production operations. What You’ll Do

Design and implement frameworks for automated testing of order entry, modification, routing, and risk logic. Build tools in Java / Python or Rust to simulate and validate end-to-end trading workflows across low-touch and high-touch systems. Develop self-service systems for trade simulation, venue behavior replay, and FIX protocol testing. Work closely with front-office support and engineers to automate health checks, venue cert scripts, and regression test pipelines. Integrate test harnesses with CI/CD pipelines for pre-deployment safety checks and latency monitoring. Ensure systems are observable and fault-tolerant, with tooling that supports debugging and issue reproduction. Support and extend test capabilities for WebSocket, REST, and FIX APIs used across exchanges and internal strategies.

What We’re Looking For

5+ years of experience building and testing distributed trading systems. Strong proficiency in Java (11+) and Python for building automation frameworks, trading system test harnesses, and performance tuning tools; experience with Rust is a plus. Experience with OMS/EMS platforms, ideally with exposure to order lifecycle, FIX messaging, and venue connectivity. Familiarity with test automation frameworks and continuous integration practices. Working knowledge of market structure, electronic trading workflows, and latency analysis. Proficiency with scripting (e.g., Python, Shell) to support testing and monitoring automation. Familiarity with high-performance messaging (e.g., Aeron, Chronicle, Kafka) and network debugging.

Bonus Points

Experience building tools for exchange certification, regression harnesses, or FIX simulators. Exposure to market-making systems, risk engines, or smart order routers. Prior work in crypto or electronic trading in traditional finance. Notice at Collection and Privacy Policy Applicants located in California and/or applying to a role based in California, please refer to our Notice at Collection and Privacy Policy here.   Inclusivity Statement FalconX is committed to building a diverse, inclusive, equitable, and safe workspace for all people. Our roles are intended for people from all walks of life. We encourage all those interested in applying to our organization to submit an application regardless if you are missing some of the listed background requirements, skills, or experiences! As part of our commitment to inclusivity, FalconX would like to acknowledge that the EEOC survey has limited potential responses that you can select. For legal reasons, FalconX must use this language to align with federal requirements, however, we want to ensure that you are able to provide a response to our own voluntary survey questions about your identity that best aligns with your most true self. FalconX is an equal opportunity employer and will not discriminate against an applicant or employee based on race, color, religion, national origin, ancestry, ethnicity, sex (including gender, pregnancy, sexual orientation, and gender identity), age, physical or mental disability, veteran or military status, genetic information, citizenship, or any other legally-recognized protected basis under federal, state, or local law. Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act and other applicable state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on FalconX. Please inform FalconX’s People team at email, if you need assistance with participating in the application process.

Apply Now:

Join Tether and Shape the Future of Digital Finance

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.

Innovate with Tether

Tether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.

But that’s just the beginning:

Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities.

Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET, our flagship app that redefines secure and private data sharing.

Tether Education: Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.

Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.

Why Join Us?

Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry.

If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you.

Are you ready to be part of the future?

About the job

The Wallet Development Kit (WDK) Software Engineer contributes to Tether's open-source toolkit for building self-custodial wallet applications across mobile and desktop platforms. This position involves technical design, implementation, and collaboration with other

teams to advance the toolkit's capabilities. Prior experience with the creation of wallets or in DeFi will be beneficial.

Responsibilities

• Innovative Solutions: Contribute to the creation of groundbreaking projects, utilizing agile methodologies and innovative technologies to create incredible platforms.

• Scalability: Ensure backend services remain effortlessly responsive and real-time, accommodating the platform's continual growth and evolving user base.

• Security: Uphold the highest security standards in all backend processes and services to safeguard our users' assets and data.

• Advanced Node/JavaScript Expertise: +5 years of experience working with Nodejs and JavaScript programming.

• Past experience building or integrating crypto wallets for DeFi and blockchain applications.

• Modular Architecture: Familiarity with modular architecture for scalable applications.

• Complex Platform Development: Experience in actively developing complex platforms and APIs.

• Peer-to-Peer Technologies: Understanding of Peer-to-Peer technologies.

• Quick Learner: Ability to quickly adapt and learn new technologies.

• Security Awareness: Strong understanding and experience implementing best security practices.

Nice to have

• High-Availability Concepts: Experience with high-availability concepts and best practices for ensuring system reliability.

• Additional Programming Skills: Knowledge of Go, Rust, or C++ is advantageous.

• Familiarity with message queues (Redis), caches, and job queues.

• Mobile Development: Experience in React Native, Flutter or Native mobile development.

Important information for candidates

• Apply only through our official channels. We do not use third-party platforms or agencies for recruitment unless clearly stated. All open roles are listed on our official careers page: https://tether.recruitee.com/

• Verify the recruiter’s identity. All our recruiters have verified LinkedIn profiles. If you’re unsure, you can confirm their identity by checking their profile or contacting us through our website.

• Be cautious of unusual communication methods. We do not conduct interviews over WhatsApp, Telegram, or SMS. All communication is done through official company emails and platforms.

• Double-check email addresses. All communication from us will come from emails ending in @tether.to or @tether.io

• We will never request payment or financial details. If someone asks for personal financial information or payment at any point during the hiring process, it is a scam. Please report it immediately.

When in doubt, feel free to reach out through our official website.

Apply Now:

Blockstream is the leading Bitcoin company, providing cutting-edge infrastructure solutions for enterprises, institutions, and individual Bitcoin users. We develop industry-leading Bitcoin self-custody solutions, Bitcoin-based financial products, second-layer scaling technologies, and enterprise-grade blockchain infrastructure.We are looking for a Developer Advocate to join our Research team, with a focus on Simplicity. This role sits at the intersection of engineering, research, and community, helping developers, researchers, and ecosystem partners understand and build with advanced blockchain technologies. You will act as a bridge between our research engineers and the wider developer community, promoting understanding of Simplicity and other advanced Bitcoin technologies, gathering feedback, and contributing to developer tools, documentation, and educational content. What You’ll Be Doing (Responsibilities):

Champion Simplicity and related research-driven technologies to the developer ecosystem. Create technical content: tutorials, documentation, blog posts, videos, sample code, and reference applications. Speak at conferences, meetups, and online events to represent Blockstream research and Simplicity.Engage with developers on forums, GitHub, and other channels, answering questions and providing guidance. Work closely with the research team to translate complex ideas into accessible resources.Collect feedback from the community to inform product and research directions. Contribute to open-source projects, developer tooling, and demos that make using Simplicity easier.

What We Look For In You (Required Qualifications):

Proficiency in Rust, OCaml, Haskell, or similar functional programming languages. Strong background in software engineering, ideally in a Bitcoin-related field, cryptography, or functional programming. Experience writing and delivering developer-focused educational materials. Excellent communication skills, both written and verbal. Familiarity with Bitcoin, blockchain protocols, and smart contract systems. Comfortable engaging with technical communities online and in person. Self-starter who thrives in a distributed, research-driven environment.

Nice To Haves (Preferred Qualifications):

Prior experience with formal verification, type theory, or DSL design. Active contributor to open-source projects.

Apply Now:

Who we are

The Vac QA service unit is dedicated to supporting IFT projects through the development and execution of comprehensive test plans. Primary responsibilities include implementing tests to ensure seamless integration and functionality across systems.

The role

We are seeking a skilled and passionate Test Automation Engineer to join our Vac QA team.

As a Test Automation Engineer, you will play a crucial role in ensuring the reliability, performance, and scalability of distributed systems within Vac and the IFT.

Your responsibilities will include automating comprehensive test plans, as well as contributing to the identification and resolution of complex issues.

Leveraging your expertise in programming and systems knowledge, you will help validating the functionality of distributed systems.

Key responsibilities

• Implement (Python, Nim, Go) and maintain integration tests in collaboration with other QAs and Devs.
• Execute and automate test plans, test cases, and test scripts to validate the functionality, performance, and scalability of distributed systems.
• Identify, reproduce, and debug complex issues in distributed systems, working closely with Logos development teams.
• Work with Docker and POSIX-like systems.
• Contribute, maintain and scale test automation frameworks.
• Integrate automated tests into CI pipelines using tools like Github Actions or Jenkins.

You ideally will have

• Solid experience with programming languages like Python, Go, Rust.
• Working knowledge of Docker and POSIX-like systems.
• Experience with scripting languages like Python and frameworks like Pytest.
• Knowledge of tests automation tools, best practices and design patterns.
• Experience with desktop/mobile UI automation with tools like squish and appium.
• Excellent written and conversational communication skills.
• Alignment with our core values and principles.

Bonus points

• Experience in blockchain technology, crypto and wallets.
• Experience working for an open-source organisation.

Interview Process

• Interview with our POps team
• Interview with team member from the Vac QA team
• Take home assignment & discussion with team member from the Vac QA team
• Interview with Vac team lead

Apply Now:

Logos is a movement supporting the development of the decentralised web. Logos technologies lay the foundations for a freer internet upon which communities can evolve into network states. Each protocol in the Logos stack seeks to empower its users while upholding civil liberties and fundamental freedoms.

About Vac

Vac builds public good protocols for the decentralized web. We do applied research based on which we build protocols, libraries and publications.

This role is within the the Vac Incubator Project “Nescience”, which is developing a state separation architecture with selective privacy.

The role

In this role, you will be responsible for maintaining our Rust code base, transforming research prototypes into production and collaborating with researchers, prototyping ideas, measuring performance, and conducting code reviews, and shaping engineering culture.

Your responsibilities will include planning, implementing, and shipping end-to-end functionality in monthly release sprints. As well as profiling bottlenecks, hardening cryptographic components, and writing property-based tests.

The ideal candidate should be comfortable with modern cryptography, familiar with zero-knowledge virtual machines (zkVMs) and experienced with blockchain or other peer-to-peer systems, and motivated by decentralisation and privacy.

Key responsibilities

• Write and maintain Rust code base.
• Develop new solutions based on research output.
• If necessary, participate in research.

You ideally will have

• 4-5 Years of Rust experience.
• Experience writing asynchronous code in Rust using Tokio.
• Solid understanding of cryptography.
• Understanding, how zkVM’s work.
• Experience in, and passion for, blockchain technology.
• A strong alignment to our principles.

Bonus points if

• Experience writing code using libp2p.
• Worked with RISC0.
• Participated in building blockchain projects.

[Don’t worry if you don’t meet all of these criteria, we’d still love to hear from you anyway if you think you’d be a great fit for this role. Just explain to us why in your cover letter].

Hiring process

The hiring process for this role will be:

• Interview with our POps team
• Interview with Nescience team lead
• Pair programming task with the Nescience team
• Interview with Vac team lead
• The steps may change along the way if we see it makes sense to adapt the interview stages, so please consider the above as a guideline.

Compensation

The expected compensation range for this role is negotiable, dependent on how we assess your skills and experience throughout our interview process. We are happy to pay in any mix of fiat/crypto.

BitGo is the leading infrastructure provider of digital asset solutions, delivering custody, wallets, staking, trading, financing, and settlement services from regulated cold storage. Since our founding in 2013, we have focused on enabling our clients to securely navigate the digital asset space. With a global presence and multiple Trust companies, BitGo serves thousands of institutions, including many of the industry's top brands, exchanges, and platforms, and millions of retail investors worldwide. As the operational backbone of the digital economy, BitGo handles a significant portion of Bitcoin network transactions and is the largest independent digital asset custodian, and staking provider, in the world. For more information, visit www.bitgo.com.This role will require being full-time onsite at our San Francisco office to support collaborative team dynamics and innovative problem-solving.

What We're Looking For: We're seeking a thoughtful problem-solver who can anticipate engineering challenges before they arise and develop elegant solutions that delight our engineering teams. You'll join a team that defines best practices, creates innovative tooling with security in depth, and serves as the technical conscience of our engineering organization. Our focus is building experiences that improve developer velocity while maintaining the highest security standards through thoughtful design and abstraction. Responsibilities:

Proactively identify pain points in our engineering processes and ship solutions before problems impact productivity. Connect deeply with engineering teams to understand their workflows, challenges, and unspoken needs. Design and build highly usable platform services, tools, and frameworks that make complex tasks simple, secure, and safe through thoughtful automation and abstraction. Drive engineering excellence by creating testing frameworks, build systems, and deployment pipelines that enhance product quality and developer velocity. Bridge technical solutions to business objectives, ensuring all work delivers measurable organizational impact. Serve as a subject matter expert across TypeScript, Node.js, GitHub Actions, Rust, and emerging AI technologies. Consult across teams as an expert to establish and evolve standards for best practices, system architecture, and maintainable codebases.

Required:

At least 5+ years of proven back-end and server-side development experience. Deep expertise in Node.js, npm, and TypeScript. Willingness to learn Rust. Strong testing and methodical debugging skills. Ability to understand users' needs beyond what they explicitly articulate. Proficiency in designing and implementing developer tooling and internal platforms with a focus on developing reliable backend systems. Experience with testing frameworks, CI/CD pipelines, and deployment automation. Skill in connecting technical solutions to meaningful business outcomes. Eagerness to learn continuously and improve without ego. Ability to work effectively with diverse stakeholders and communicate complex ideas clearly. Strong foundation in software engineering fundamentals and system design. Bachelor's degree in computer science, mathematics, or a related technical field.

Preferred:

Experience with Rust and Kotlin. Experience developing AI agents, prompt engineering, or other AI based automation tools. Background in optimizing build systems. Experience with containerized microservices in Kubernetes. Experience using event-driven systems and platforms like Kafka.

Why You'll Love This Role:

Create tools and systems that save engineering teams hundreds of thousands of hours of effort. Work with autonomy to identify problems and propose creative solutions. Join a team of humble, smart, continuous learners who value excellence.

Why Join BitGo? Disrupting an industry takes vision, innovation, passion, technical chops, drive to deliver, collaboration, and execution. Join a team of great people who strive for excellence and personify our corporate values of ownership, craftsmanship, and open communication. We are looking for new colleagues who bring innovative ways of thinking and problem solving, and who want risks to be part of the team that changes the world's financial markets. Pay Transparency Notice: Depending upon your leveling and location, the compensation for this role averages between $165,000 - $210,000 USD base salary. Equity, an annual performance bonus and the benefits outlined above are also a part of this role's package. Here are some of the benefits* of working at BitGo:

Competitive base salary, bonus and stock options 100% company paid health insurance for employee, partner and dependents Up to 4% 401k company match Paid parental leave, Paid vacation Free commuter/parking pass Free custom lunches, dinners and snacks  Computer equipment and workplace furniture to suit your needs Great colleagues and inspiring startup environment

Cryptocurrencies are the most disruptive change the financial services industry has seen in years. Join us and you'll be able to look back and say you were part of the team that transformed investing.

Apply Now:

Logos is a movement supporting the development of the decentralised web. Logos technologies lay the foundations for a freer internet upon which communities can evolve into network states. Each protocol in the Logos stack seeks to empower its users while upholding civil liberties and fundamental freedoms.

The Role

Nomos requires a specialized role to bring in-depth knowledge and experience with ZK proofs and related tools and frameworks. This expertise will facilitate expedited prototyping, research, design of the proving system, and help in developing ZK-friendly solutions for the requirements of multiple components of the Nomos blockchain. The constant flux of tasks, varying in size and scope, requires a team member who can seamlessly integrate into the team and contribute immediately.

Key Responsibilities

• Develop an in-depth understanding of the multi-layered architecture of Nomos and how Zero Knowledge proofs can be effectively utilized at various stages.
• Collaborate with other researchers and developers to ensure that Nomos’s systems and protocols are efficiently designed and implemented.
• Address and solve upgradeability concerns related to ZK schemes and ensure consensus proofs are ZK-friendly.
• Design and help implement privacy-centered protocols that require the use of ZK proofs.
• Evaluate and integrate ZK tools and frameworks to optimize the performance and efficiency of our systems.
• Stay abreast of the latest developments and trends in the field of Zero Knowledge proofs and blockchain technology.
• Provide support and guidance to the team on ZK proofs related issues.

You ideally will have

• A strong technical background, preferably with a degree in Computer Science, Mathematics, or a related field (PhD-level or equivalent in industry); relevant research experience.
• Extensive knowledge and experience with Zero Knowledge proofs, cryptography, and blockchain technology.
• Deep understanding of Zero-Knowledge proof systems (zk-SNARK, circom, Plonk/Halo2, zk-STARK), elliptic curve cryptography, and circuit design.
• Previous experience in a similar role, where you successfully contributed to the development of complex systems using ZK proofs.
• Strong problem-solving skills and the ability to make informed decisions quickly.
• The ability to work collaboratively in a team environment and communicate complex concepts clearly and effectively.
• A passion for the blockchain technology and a desire to push the boundaries of what is currently possible.
• Knowledge of current ZK tools and frameworks, and the ability to learn new tools quickly.

Bonus if

• Knowledge of other privacy-preserving technologies (MPC, FHE).
• Distributed systems knowledge.
• Knowledge or interest in other areas related to blockchain systems.

[Don’t worry if you don’t meet all of these criteria, we’d still love to hear from you anyway if you think you’d be a great fit for this role!]

Hiring Process

The hiring process for this role will be:

• Interview with our POps team
• Interview with Team Member
• Interview with Team Lead
• Interview with Logos Program lead

Compensation

The expected compensation range for this role is $110,000 - $190,000 (negotiable, dependent on how we assess your skills and experience throughout our interview process). We are happy to pay in any mix of fiat/crypto.

About Helius

Helius is a leading developer platform on the Solana blockchain, dedicated to inspiring and accelerating the creation of crypto-powered software. Customers like Coinbase, Jupiter, and Phantom use Helius to power their applications on Solana.

We’ve raised over $34m from Haun Ventures, Founders Fund, Foundation Capital, 6th Man Ventures, Reciprocal Ventures, Chapter One and angel investors including Solana co-founders Anatoly Yakovenko and Raj Gokal, and Balaji Srinivasan. Our team members have previously built mission-critical, scalable infrastructure at AWS, Coinbase, Stripe, Google, Digital Ocean, and more.

Here is the Helius Manifesto so you know what to expect if you join Helius.  

Role Description

We are looking for a Rust Engineer with experience in building and scaling distributed systems to join our growing team. If you have a passion for blockchain technology and a strong sense of ownership, we’d love to hear from you!

Responsibilities:

• Implement and maintain backend services following established architectural patterns and best practices
• Work with team members to integrate new features into existing infrastructure components
• Debug performance issues and implement solutions with guidance from senior engineers
• Help set up and maintain monitoring systems for services you’re responsible for
• Follow security best practices and coding standards while implementing new features
• Participate in code reviews and contribute to technical discussions within the team

Requirements:

• Proficient with Rust.
• 3 years of experience with Rust or a similar language (C++, Golang, Java, etc).
• 3 years of experience building & maintaining high-scale production systems.
• Proficient with distributed systems and databases.
• Demonstrated ability to work autonomously, execute at speed, with excellent communication and collaboration skills.
• Startup and/or web3 experience is a bonus.
• Experience that is relevant to Helius is a major advantage.

What We Offer

• Competitive salary and equity package
• Flexible work hours and remote-friendly environment
• Generous vacation and time-off policy
• Wellness, travel, and educational budgets
• Opportunities for personal and professional growth in a fast-paced, dynamic industry

Helius is an equal opportunity employer.

OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa.

Who We Are

At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom.   OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves.   Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er.   OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.

About the Opportunity

OKX is undertaking a significant global team buildout within its Internal Audit function, and we are looking for an experienced and visionary Head of Infrastructure & Developer Operations Audit. This is a unique opportunity to lead the assessment and assurance of our critical infrastructure and DevOps practices within a leading crypto organization, ensuring the highest levels of resilience, scalability, and security for our global operations. You will build and lead a high-performing audit team, drive strategic assurance initiatives, and directly impact the robust and efficient delivery of innovative crypto products and infrastructure by thoroughly assessing the organization's codebase, build, test, and release processes, as well as technical infrastructure maintenance and management.

What You’ll Be Doing 

Lead and manage a global Infrastructure & Developer Operations audit team, including hiring and developing individuals across key regions.

Drive the execution of global audit programs, specifically assessing the design and operating effectiveness of controls over infrastructure, cloud computing platforms, operating systems, networking, virtualization, containerization, storage systems, DevOps practices, and Secure CI/CD pipelines. This includes a deep dive into the codebase, build, test, and release processes.

Oversee the independent validation of IT incidents related to infrastructure and development operations, and provide critical audit support for group-wide IT certifications.

Collaborate effectively with other functional and regional Internal Audit portfolio leads to provide expert infrastructure and DevOps controls testing and assurance for integrated audits.

Develop and implement advanced audit methodologies tailored to the unique complexities of high-performance, distributed crypto systems, emphasizing the assessment of automated and secure deployments, and ongoing maintenance and management processes.

Provide strategic audit insights and independent assurance on emerging infrastructure and DevOps risks in the cryptocurrency space to senior leadership and the Audit Committee.

What We Look For In You

We are seeking a seasoned IT audit professional with demonstrable experience in independently assessing infrastructure and DevOps practices within the crypto exchange or crypto product space. The ideal candidate will possess a deep understanding of resilient and secure infrastructure principles applied to novel technical and control environments, coupled with strong leadership and analytical skills. Key Qualifications:

Prior Crypto Exchange/Crypto Product Experience is Essential.

Strong Critical Thinking and Problem-Solving Skills: Capacity to analyze complex, often novel, technical and control environments unique to crypto, identify intricate root causes of issues, and propose effective, context-specific solutions.

Fundamental Understanding of Blockchain Technology: Basic knowledge of distributed ledger technologies, consensus mechanisms (e.g., PoW, PoS), cryptography (hashing, public-key), and the lifecycle of a cryptocurrency transaction.

Data Analytics/SQL for Infrastructure & DevOps Auditing: Expert ability to analyze complex data across the entire technology stack, including CI/CD pipeline logs, git commit history, dependency manifests, configuration management logs, system logs, network flow data, infrastructure-as-code configurations, and cloud provider logs, specifically for audit purposes.

Infrastructure Auditing: Comprehensive knowledge of IT infrastructure components, with a specialized focus on independently auditing the resilience, scalability, and security of blockchain nodes, low-latency trading systems, and high-availability wallet infrastructure.

Cloud Computing Platform Auditing: Expert-level auditing of cloud infrastructure (AWS, Azure, GCP) specifically for mission-critical crypto workloads, including container orchestration (Kubernetes), serverless functions, multi-region deployments, and ensuring geo-redundancy for key assets.

Operating System (OS) Auditing (for Blockchain Nodes & Exchange Servers): Deep dive capability to assess the hardening, patching, kernel configurations, and user access controls for operating systems hosting blockchain nodes, trading engines, and critical exchange services.

Networking Auditing: Advanced knowledge of networking protocols, DDoS mitigation strategies, and the ability to audit low-latency, high-throughput network architectures essential for competitive crypto exchange operations, including peering arrangements and BGP configurations.

Virtualization & Containerization Auditing: Expertise in independently auditing virtualized environments and container orchestration platforms (Docker, Kubernetes) specifically for secure isolation of critical workloads, supply chain security for container images, and resource management to prevent denial-of-service.

Storage System Auditing: Ability to independently assess the security, integrity, availability, and immutability of storage systems (SAN, NAS, object storage) for critical blockchain data, cryptographic keys, and sensitive audit logs.

DevOps Auditing: Deep understanding of DevOps principles (e.g., build, test, release), automation, and continuous delivery with a focus on independently auditing the security and compliance of rapid, automated deployments in a high-stakes crypto environment (e.g. GitLab, GitHub, etc.)

Secure Continuous Integration/Continuous Delivery (CI/CD) Auditing: Expertise in independently auditing CI/CD pipelines for integrated security tools (SAST, DAST, SCA), automated security gates, secure artifact management, and robust deployment controls for smart contracts and exchange software. This includes assessing the codebase, build, test, and release processes.

Automation and Scripting Auditing (for Infrastructure as Code & Smart Contracts): Ability to independently assess the security and integrity of automation scripts (e.g., Python, Go, Shell), Infrastructure as Code (IaC) tools (e.g., Terraform, CloudFormation), and configuration management tools (e.g., Ansible) used to manage crypto infrastructure.

Cloud Deployment & Management Auditing (Automated & Secure): Expertise in independently auditing automated cloud provisioning, configuration, and management processes, emphasizing security best practices, least privilege, and immutable infrastructure principles for critical crypto components, as well as ongoing maintenance and management.

Agile Development Methodologies Auditing: Ability to independently assess the deep integration of security activities and controls within agile development processes, including proactive threat modeling for new features, security champions within development teams, and rigorous peer review for smart contract code.

Code Review & Secure Coding Practices: Familiarity with secure coding principles for languages commonly used in blockchain development (e.g. Solidity, Rust, Go, Python) and the ability to independently evaluate the effectiveness of code review processes for identifying operational and security flaws.

Risk Management Principles for Infrastructure & DevOps Auditing: Advanced grasp of risk identification, assessment, mitigation, and monitoring methodologies specifically tailored to the high-stakes, real-time, and often irreversible nature of crypto transactions.

Knowledge of Specific Regulatory Requirements impacting Infrastructure & DevOps: Understanding of specific regulatory requirements impacting crypto exchanges globally (e.g., anti-money laundering (AML), combating the financing of terrorism (CFT) as per FATF, sanctions compliance, specific licensing requirements for Virtual Asset Service Providers (VASPs)) and how these translate to technical controls relevant to infrastructure and DevOps.

Perks & Benefits 

Competitive total compensation package

L&D programs and education subsidy for employees' growth and development

Various team building programs and company events

Wellness and meal allowances Comprehensive healthcare schemes for employees and dependants More that we love to tell you along the process!

LI-RF1

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Developer Experience (DevX) is responsible for making sure all engineers at Coinbase build high-quality products while being productive and engaged. We do this by providing infrastructure, libraries, frameworks, and tooling to make it easier and faster to build high quality applications. Within DevX, our Onchain Pod is focused on defining the future of developer experience for onchain developers, both within Coinbase and in the broader crypto ecosystem. We believe that the onchain platform is the most important builder platform since the internet (“online”). As a Staff Software Engineer on this team, you’ll be instrumental in designing, building, and executing core solutions that drive our systems.

What you’ll be doing (ie. job duties):

• Lead the new Onchain Pod and help define its charter, vision, mission, and roadmap.
• Work with stakeholders in Engineering and Security to identify pain points and insecure processes in the onchain development lifecycle.
• Architect and build new tooling to improve onchain development for Coinbase and the broader ecosystem. Augment and maintain existing tooling.
• Drive the evolution of Web3 development toward Web2-level tooling, reliability, and ergonomics - reducing friction and making onchain development more accessible.
• Take ownership of the team's processes and services, ensuring SLA adherence.
• Be a thoughtful technical voice within the team, aiding in diligent architectural decisions and fostering a culture of high-quality code and engineering processes.
• Mentor and collaborate with other members of the team to deliver high quality solutions.
• Champion a “don’t DIY unless necessary” philosophy by leveraging proven industry standards and modern frameworks wherever possible.
• Stay current with emerging trends in the Web3 tooling ecosystem, and integrate best-in-class solutions to accelerate internal development without reinventing the wheel.

What we look for in you (ie. job requirements):

• You have 8+ years of software engineering experience.
• You are passionate about enabling onchain development.
• You have extensive experience with smart contract deployments, execution, and management (EVM in particular).
• You have a deep understanding of how popular L1s and L2s work.
• You have an energy and self-drive for continuous learning as crypto is a constantly and rapidly changing space.
• You excel in clear, direct, and kind communication with technical and non-technical stakeholders.
• You have experience building relationships with security, product, and engineering teams.
• You balance long term strategic thinking with short term tactical planning.
• You are familiar with cloud infrastructure (e.g., AWS), containerization (e.g., Kubernetes), and Infrastructure as Code tools like Terraform.
• You have a Bachelor’s or Master’s degree in Computer Science, Software Engineering, or equivalent experience.

Nice to haves:

• Prior experience working in a Developer Experience/Productivity, Platform, or similar domain team.
• Have previous experience at a fast paced, high growth stage internet/software company.
• Contributions to open-source crypto projects, such as OP Stack.
• Experience with Golang, Geth, Rust, Reth, Foundry, Solidity, or other crypto tools.
• An interest in blockchain security, red-teaming, and exploit prevention.

*Answers to crypto-related questions may be used to evaluate your onchain experience.

#LI-Remote

Apply Now:

About Dune

Dune is on a mission to make crypto data accessible. We’re a collaborative multi-chain analytics platform used by thousands of developers, analysts, & investors to understand the on-chain world and the frontiers of finance. We’re a team of ~55 employees,  working together across Europe and eastern US timezones 🌍️. We believe in our mission, and in building a powerful, open product that allows individuals and communities to do deep research into important ecosystems like Bitcoin, Ethereum, Solana, and many more. 

We’re backed by some of the world's best investors. In February 2022, we announced our Series B funding round led by Coatue and Union Square Ventures, an important milestone that allowed us to double down on our mission. We’re using the funds to educate, reward and empower a new generation of onchain analysts aka Wizards 🧙‍♀️

If you want to have one of the highest impact jobs on the planet, come join our wonderful team of Galaxy brains.

Learn more about us:

Dune's Vision

Values and working at Dune

About the role

Dune is pushing the boundaries of real-time data processing, and we’re looking for a talented Rust Engineer to help us build and optimize the next generation of APIs. As an engineer on DevX at Dune, you’ll play a crucial role in developing high-performance, real-time systems that power crypto applications. You’ll work on some of the most cutting-edge technologies directly impacting the user experience.

In this role, you will:

• Design, implement, and maintain high-performance, real-time APIs using Rust, ensuring they meet the industry-pioneering performance and stability requirements of our users.

• Work closely with the team to develop new features, such as better interpretation layers, enhanced data decoding, and improved API coverage for various blockchain data.

• Work on performance improvements such as optimizing CPU usage, improving latency, and implementing caching strategies for better data fetching.

• Explore and implement cutting-edge data storage solutions, improvements, and future explorations.

• Focus on stability improvements, improving recovery processes, and enhancing the robustness of our real-time systems.

• Contribute to the internal developer experience by improving local test setups, integration tests, and incremental deployment processes.

• Work on one of the fastest engineering teams in the industry

You might be a great fit for this role if you:

• 5+ years experience including 1 year of working with Rust.

• Have a deep understanding of systems programming concepts, particularly in high-performance or real-time applications.

• Are familiar with technologies like Parquet or similar and have experience optimizing data storage and retrieval processes.

• Know how to go deeper than “just use postgres” when building products.

• Enjoy tackling performance problems, optimizing CPU usage, reducing latency, and implementing efficient caching mechanisms.

• Enjoy working with customers and solving their problems.

• Have a strong ability to diagnose complex problems, particularly in distributed and real-time systems, and implement efficient solutions.

• Work well in a team environment, are comfortable discussing technical issues, and can effectively collaborate with other engineers to achieve common goals.

• Are excited about exploiting old and exploring new ways to improve system performance and reliability.

Perks & Benefits

• A competitive salary and equity package 🚀. Both salary and equity is top 25% of companies in the space

• Our employee equity scheme has world-class employee-friendly terms with a heavily discounted strike price (~90%) and a 10-year exercise window

• 5 weeks PTO + local public holidays (that can be swapped to suit you) 🏖

• A fully remote-first approach 🧑‍💻 within a distributed team with flexible working hours; you structure your own day 

• Say goodbye to meeting overload! We believe in a healthy mix of async and sync work, so you can focus on what truly matters—no more wasted time on endless meetings!

• Good health is important, so we offer private medical insurance, dental & vision as standard 🩺

• We believe in paid parental leave 👶 to help you celebrate this important milestone, transition to your new life, and bond with your new baby. We offer 16 weeks to primary and 6 weeks to secondary caregivers, fully paid. Plus a 2-week part-time phased return at full pay to help you get used to your new (and slightly more complex!) schedule

• Quarterly offsites in various exciting locations as a company or team to connect, work together and have fun (so far in Tuscany 🇮🇹 Berlin 🇩🇪 Austria 🇦🇹 and Athens 🇬🇷).

• On top of this 👆each person gets a yearly travel allowance to connect and co-work with someone or a team of people for a few days.

• An allowance for your at-home setup, to ensure you are happy, comfortable and productive. If you prefer a local co-working space, we’ll pay for your desk.

• Work with some of the best people you’ll ever get to meet!

• And of course, you get some awesome Dune swag! ✌️😎

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We are dedicated to building a diverse, inclusive, and authentic workplace, so if you’re excited about this role but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyway. You may be just the right candidate for this or other roles.

Apply Now:

About Zscaler Serving thousands of enterprise customers around the world including 45% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry. If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler. Our Engineering team built the world's largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 15 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy. We're looking for a Principal Software Engineer to join our platform convergence team. This is a hybrid role, reporting in the San Jose office 3 days a week.  Reporting to the Sr. Director of Software Engineering, you'll be responsible for: 

Designing and building a low-latency, high-throughput data forwarding plane using Rust, leveraging its async/await model for efficient I/O and service-oriented infrastructure Developing distributed, scalable systems with a focus on concurrency, fault tolerance, and messaging Implementing and maintaining gRPC-based APIs and services to integrate forwarding plane capabilities with control and orchestration layers Optimizing system performance through profiling tools across kernel-space and user-space Engaging in code reviews, system design discussions, technical documentation, and mentoring junior engineers

What We're Looking for (Minimum Qualifications) 

10+ years of software development experience including experience coding with Rust, particularly in systems programming and async frameworks like Tokio or async-std Proven expertise in building resilient, observable, and horizontally scalable distributed systems Strong understanding of Linux fundamentals, including networking, namespaces, sockets, and kernel-user space interaction Proficient in container-based environments, Git, CI/CD workflows, and performance instrumentation

What Will Make You Stand Out (Preferred Qualifications)

Experience with systems languages like C/C++ or Go, particularly in performance-critical environments Familiarity with Linux networking stacks, kernel-space technologies (eBPF, XDP, DPDK), bare-metal deployments, Kubernetes networking, service meshes, or observability tools Hands-on experience with gRPC, Protobufs, service-oriented architectures, and L2–L4 networking protocols (TCP/IP, UDP, QUIC, VLAN, routing, encapsulations, etc.)

LI-JM1

LI-HybridZscaler’s salary ranges are benchmarked and are determined by role and level. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations and could be higher or lower based on a multitude of factors, including job-related skills, experience, and relevant education or training.

The base salary range listed for this full-time position excludes commission/ bonus/ equity (if applicable) + benefits.Base Pay Range$182,000 - $260,000 USDAt Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure. Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

Various health plans Time off plans for vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more!

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

Apply Now:

About Zscaler Serving thousands of enterprise customers around the world including 45% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry. If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler. Our Engineering team built the world’s largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 15 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy. We're looking for an experienced Principal Software Development Engineer to join our Cloud Browser Isolation team. Reporting to the Sr Manager Software Engineering, you'll be responsible for:

Developing automated deployment and upgrade tools to streamline customer rollouts, reducing maintenance needs and minimizing errors Building automation tools to boost developer productivity and promoting DevOps within engineering teams Collaborating with QA and Engineering to design infrastructure solutions aligned with business needs Collaborating with SMEs throughout product development to plan and enhance infrastructure

 What We’re Looking for (Minimum Qualifications) 

Over 10 years of software engineering experience, including 2+ years in leadership roles Proficient in GoLang, Java, or Rust; intermediate in Python and Bash Expertise with backend systems in large-scale service-oriented architectures Skilled in AWS, Azure, or GCP at an intermediate to advanced level Intermediate to advanced level experience with Linux Operating System and CI & Build tools

What Will Make You Stand Out (Preferred Qualifications)

Proficient in config management and orchestration tools like Terraform, Docker, Ansible, Puppet, Salt, or Chef Passion for automation and problem solving Ability to work both with a global team and individually

LI-AN4#LI-HybridAt Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure.

Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

Various health plans Time off plans for vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more!

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

Apply Now: