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

Experience: 5+ 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) ML/Game Theory Engineer to co-lead the technical development of our AI-powered verification platform, working side-by-side with our Full-Stack AI/Blockchain Platform Lead. This is a high-impact role for a technically exceptional individual who thrives at the intersection of advanced machine learning, game theory, and agentic system design. You will architect and implement the fine-tuning strategies for our core AI agents—Intelligence Service Providers (ISP) and Intelligence Verification Service Providers (IVSP)—that underpin trustless information verification and decentralized knowledge creation.

Your work will directly shape the mechanisms that ensure outputs are not just intelligent, but correct, comprehensible, and aligned with customer interests, leveraging the latest in LLM training, distillation, and evaluation frameworks. You will help design the incentive, verification, and equilibrium mechanisms that allow diverse AI and human agents to compete and cooperate in a robust, game-theoretic ecosystem.

What You’ll Do

ML/AI Agent Engineering

• Lead the design and implementation of fine-tuning, distillation, and evaluation pipelines for LLM-based ISP and IVSP agents, optimizing for accuracy, explicability, and alignment in a multi-agent, trustless environment.
• Integrate advanced frameworks for claim extraction, fact-checking, and output verifiability, ensuring that agent outputs are both entailed by source data and understandable in isolation.
• Develop reinforcement learning and multi-turn agent strategies to improve agent performance in adversarial and cooperative settings, drawing on the latest research in agentic deployments and multi-agent learning.
• Architect systems that manage and mitigate negative-value information feedback loops, ensuring the positive value bias of information networks and preventing runaway dynamics.

Game Theory & Mechanism Design

• Apply game-theoretic models to design incentive structures, competition protocols, and equilibrium strategies for decentralized agent networks, including Nash equilibrium analysis and coalition resistance.
• Design trustless verification and reward mechanisms that make verification easier and more robust than answer generation, leveraging concepts from mechanism design, repeated games, and evolutionary dynamics.
• Model and simulate strategic agent interactions (AI and human) to optimize for system-wide alignment, diversity of agent types, and minimization of agency costs.

System Integration

• Collaborate with the Full-Stack/Blockchain Platform Lead to integrate ML/game-theoretic components into the broader distributed verification, reward, and knowledge management architecture.
• Contribute to the design of the protocol’s core primitives: atomic chain-of-thought reasoning, verifiable step decomposition, and secure agent identity and reputation systems.

What You Bring

Required Technical Skills

• 2+ years hands-on experience in ML/AI, with deep expertise in LLM training, fine-tuning, distillation, and evaluation (OpenAI, Anthropic, Llama, etc.).
• Strong background in multi-agent systems, game theory, or mechanism design, with demonstrable experience designing or analyzing agentic interactions in adversarial or cooperative settings.
• Proficiency with ML frameworks (PyTorch, JAX, TensorFlow), agentic orchestration (LangChain, Haystack, or similar), and distributed training pipelines.
• Experience implementing or integrating claim extraction and fact-checking frameworks (e.g., Claimify), including decomposition of outputs into verifiable atomic claims.
• Familiarity with blockchain/crypto incentive systems, peer-to-peer protocols, or trustless verification architectures.

Preferred Experience

• Publication record or open-source contributions in multi-agent reinforcement learning, game-theoretic AI, or decentralized ML systems.
• Experience with reinforcement learning from human feedback (RLHF), agentic evaluation protocols (e.g., Chatbot Arena, Scale AI), or consensus mechanisms.
• Familiarity with large-scale knowledge graphs, knowledge management, or cryptographic verification of information provenance.

Soft Skills

• Startup mentality—comfortable with rapid iteration, ambiguity, and high ownership.
• Collaborative leadership—able to co-drive architectural decisions and cross-functional integration.
• Communication—can explain complex technical concepts to diverse audiences, including non-technical stakeholders.
• Problem-solving—adept at debugging, optimizing, and scaling complex distributed agent systems.

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

About Figure Figure is maximizing the value of homeownership in ways that benefit consumers and the industry alike. We’re helping homeowners tap their liquidity easily, efficiently and reasonably for purpose-driven, significant expenditures – everything from dream home renovations and debt consolidation to small business formation. In seven years, we’ve become the country’s #1 non-bank HELOC lender. As a financial technology firm operating at the intersection of regulation and transformation, we’re a “unicorn” – a group of fewer than 1000 companies globally that is valued at $1B or more and has been in operation for less than ten years.  Our mission requires us to have a creative, team-oriented, and supportive environment where everyone can do their absolute best. We are motivated, innovative, collaborative, and curious. We value individuals who bring a problem-solving mindset to every task. Every day at Figure is a journey in continuous learning combined with a focus on getting work done that makes a difference. Join us! Wealthfront Career-Launching Company  Figure Series D Announcement About the Role Figure Technology Solutions is looking for a Staff Front-End Engineer to help shape the future of our Figure Markets web platform. In this role, you will lead the design and development of scalable, performant, and responsive user interfaces that power our trading, borrow and earn marketplace. You’ll collaborate with cross-functional teams to deliver seamless experiences for retail and institutional users. As a senior technical leader, you will help set front-end architecture direction, uphold high engineering standards, and mentor engineers to foster technical growth. This is a unique opportunity to influence the front-end foundation of a high-growth, fast-paced financial platform. What You’ll Do

Architect, design, and build high-performance React applications that power trading experiences and dashboards. Build reusable UI components and systems that scale across products and teams. Collaborate with product managers, designers, and backend engineers to define and execute on key product initiatives. Drive frontend performance optimization, security, and maintainability. Establish and uphold best practices in code quality, testing, documentation, and accessibility. Lead large-scale technical initiatives, proactively identify architectural challenges, and propose scalable solutions. Contribute to improving developer experience through tooling, CI/CD, and internal libraries. Mentor other engineers and influence engineering culture through collaboration and technical leadership.

What We Look For

8+ years of professional experience in front-end engineering, ideally building complex, high-throughput applications. Deep expertise in modern JavaScript, React, HTML5, and CSS3; experience with TypeScript is highly preferred. Track record of leading projects end-to-end—from design through deployment—in fast-paced environments. Strong understanding of performance profiling, frontend observability, and browser rendering internals. Demonstrated ability to mentor other engineers and elevate team-wide technical standards. Experience collaborating with product, design, and engineering teams to create user-centric solutions. Passion for crafting clean, scalable, and accessible UIs. Comfortable navigating ambiguity and driving projects in a startup or high-growth company environment.

Bonus if you have experience with:

Experience with crypto wallets and Web3 integrations (e.g. WalletConnect, MetaMask, Ledger). Familiarity with blockchain transaction flows and client-side signing (e.g., EIP-712, ethers.js, web3.js). Experience in financial products, trading interfaces, or crypto/web3 platforms. Familiarity with frontend infrastructure such as monorepos, module federation, or micro-frontends. Experience with testing frameworks like Jest, Playwright, or Cypress. Knowledge of security considerations in fintech or crypto applications. Familiarity with design systems and tools such as Storybook, Tailwind, or Figma.

Salary

Compensation Range: $138,000 - $172,000 25% annual bonus target, paid quarterly  Equity RSU package This is the compensation range for the United States, actual compensation may vary based on individual candidate experience, location, or evolving business needs

Benefits

Comprehensive health, vision, and dental insurance with 100% employer-paid premiums for employees and their dependents on select plans Company HSA, FSA, Dependent Care, 401k, and commuter benefits Employer-funded life and disability insurance coverage 11 Observed Holidays & PTO plan Up to 12 weeks paid family leave Continuing education reimbursement

Depending on your residential location certain laws might regulate the way Figure manages applicant data. California Residents, please review our California Employee and General Workforce Privacy Notice for further information. By submitting your application, you are agreeing  and acknowledging that you have read and understand the above notice. Figure will not sponsor work visas for this position. In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire. 

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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 Palo Alto office to support collaborative team dynamics and innovative problem-solving. We're looking for engineers who have strong opinions but hold them loosely, can give direct feedback constructively, and believe in raising the bar for the entire team. No egos, no defensiveness, just smart people building great software together. We are seeking an experienced full-stack engineer to join our expanding team and contribute to the development of our web application. This role offers the chance to architect solutions, drive technical decisions, and work on a product serving hundreds of thousands of users. We value open communication, transparency, ownership, and a high level of craftsmanship. Our mission is to deliver trust in digital assets, and we are looking for teammates who share this vision. What you will do:

Design and build scalable web applications using our Node.js/TypeScript and React stack Collaborate closely with design and product managers to define, architect, and ship new features Establish engineering best practices, code standards, and development processes Conduct thorough code reviews, provide mentorship to team members and contribute to a culture of continuous improvement Draft technical design documents & spearhead major initiatives

Required:

Proven experience in modern front-end development using React Strong knowledge of JavaScript and related technologies (ES6, TypeScript) Experience with unit and /integration testing using frameworks like Vitest, Jest, Enzyme or JUnit Demonstrated experience developing and deploying Node.js applications using Express, Redis and other modern backend technologies Solid understanding of the software development life cycle Knowledge of UI/UX standards and design principles Experience in GitHub and git workflows Ability to work independently in a fast-paced environment We are a 24/7 service that requires participation on an on-call rotation We value skills and experience over formal education, degrees are not required You don’t need to meet every listed requirement from day one, but you should be able to quickly learn and apply new skills

Preferred:

Understanding of and strong interest in cryptocurrencies and blockchain Experience working in startup or high-growth environments

  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 $180,000 - $220,000 USD base salary. Equity, an annual performance bonus and the benefits outlined below 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 Commuter stipend, paid parking Free custom lunches, dinners and snacks  Computer equipment and workplace furniture to suit your needs Great colleagues and inspiring startup environment

*Benefits may vary based on location  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:

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 Toronto office to support collaborative team dynamics and innovative problem-solving. We're looking for engineers who have strong opinions but hold them loosely, can give direct feedback constructively, and believe in raising the bar for the entire team. No egos, no defensiveness, just smart people building great software together. We are seeking an experienced full-stack engineer to join our expanding team and contribute to the development of our web application. This role offers the chance to architect solutions, drive technical decisions, and work on a product serving hundreds of thousands of users. We value open communication, transparency, ownership, and a high level of craftsmanship. Our mission is to deliver trust in digital assets, and we are looking for teammates who share this vision. What you will do:

Design and build scalable web applications using our Node.js/TypeScript and React stack Collaborate closely with design and product managers to define, architect, and ship new features Establish engineering best practices, code standards, and development processes Conduct thorough code reviews, provide mentorship to team members and contribute to a culture of continuous improvement Draft technical design documents & spearhead major initiatives

Required:

Proven experience in modern front-end development using React Strong knowledge of JavaScript and related technologies (ES6, TypeScript) Experience with unit and /integration testing using frameworks like Vitest, Jest, Enzyme or JUnit Demonstrated experience developing and deploying Node.js applications using Express, Redis and other modern backend technologies Solid understanding of the software development life cycle Knowledge of UI/UX standards and design principles Experience in GitHub and git workflows Ability to work independently in a fast-paced environment We are a 24/7 service that requires participation on an on-call rotation We value skills and experience over formal education, degrees are not required You don’t need to meet every listed requirement from day one, but you should be able to quickly learn and apply new skills

Preferred:

Understanding of and strong interest in cryptocurrencies and blockchain Experience working in startup or high-growth environments

  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 $200,000 - $230,000 CAD base salary. Equity, an annual performance bonus and location specific benefits  are also a part of this role's package.  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:

About BitMEX BitMEX stands as a globally leading exchange for crypto derivatives, offering traders a professional-grade trading platform. Since its inception in 2014, BitMEX has maintained an impeccable security record with “no coin lost, ever!”. Our platform caters to cryptocurrency derivatives traders by providing low latency, deep liquidity, and maximum availability. Currently, BitMEX offers more than 100 derivatives contracts, 16 pairs for spot trading, and an easy covert function between 30+ different cryptocurrencies. In 2015, BitMEX revolutionised the market by inventing the Perpetual Swap, which has since become the most widely traded crypto product. Demonstrating a commitment to transparency, since 2021, BitMEX has been among the first exchanges to regularly publish its on-chain Proof of Reserves and Proof of Liabilities, ensuring that the funds available exceed the total client balances." For more information on BitMEX, company initiatives and our products, please visit the BitMEX Blog or www.bitmex.com, and follow LinkedIn, Discord, Telegram and X.Overview The Trading Engine sits at the core of the BitMEX platform and handles all brokerage and trading aspects. The Trading Engine team is responsible for order management, risk management, position keeping, PNL calculations, market data distribution, order matching, and settlement. We are building a best-in-class engineering team to help us scale the BitMEX trading platform to millions of users and millions of transactions per second, and grow an innovative set of new products. We are looking for strong technologists to join our lean core team with a keen interest in building the next generation of electronic trading systems. Key Responsibilities

Ownership in the design, development and delivery of trading system components New feature implementation, bug fixing, and performance tuning Partner with Financial Products and quantitative researchers on product delivery Mentor team members and drive firm initiatives

Requirements

8+ years programming experience writing high-performance Java applications Bachelor's degree in a Computer Science or similar STEM discipline Experience in a related industry, such within a Hedge Fund, Investment Bank, or an Exchange developing financial trading applications Understanding of the modern software development fundamentals and testing practises inclusive of TDD and BDD Understanding of design patterns and object-oriented programming such as SOLID, with in-depth understanding of algorithms and their complexities  Understanding of the Java Memory Model and concurrency in practise Demonstrable analytical and problem solving skills, with an ability to break larger problems down and turning complex problems into simpler abstractions Genuine passion for software development, and a keen lifetime learner who puts quality over quantity

Nice to have

Experience in development of execution algos and risk management systems Finance knowledge in FX/Crypto spot and derivatives markets Basic understanding of mathematics Working knowledge of the KDB/q language  Working knowledge of containerisation using Docker/Kubernetes  Experience with REST/WS, FIX or any other financial protocols

Why BitMEX? BitMEX offers a dynamic environment that blends intense work, a vibrant culture, and diversity. We actively recruit across time zones to meet growing demands and attract top global talent. We're seeking determined, responsible, and collaborative individuals to join us in building a leading cryptocurrency ecosystem. We value meticulousness, agility, and simplicity. As a 24/7 global exchange, we look for adaptable team players who can excel in a diverse, cross-market environment. We provide flexible arrangements to our remote contract talents with:

Work from home to help you find the perfect balance between work, family and personal life Paid holidays and leave so you won’t miss out any important events Team building & offsite events to bring our global team closer Don’t forget the advantage of our Beyond Border Remote Working policy, where you get to work away from your home country Option to choose to be paid in fiat or crypto currency, providing the flexibility to shape your financial freedom

LI-CH1Does this sound like the type of working culture you can thrive in? Apply online now!

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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

About Us

We are a dynamic hedge fund specializing in cryptocurrency arbitrage strategies. Our proprietary platform aggregates order books from centralized exchanges (CEXs) like Binance and decentralized exchanges (DEXs) like Uniswap to identify and execute high-frequency trading opportunities. We’re building a robust, scalable infrastructure to support our growing operations in the fast-paced crypto markets. If you’re passionate about low-latency systems, real-time data processing, and fintech innovation, join us to help shape the backbone of our trading engine.

Role Overview

As a Senior Software Engineer focused on Crypto Trading Infrastructure, you will be responsible for designing, building, and maintaining the core systems that power our arbitrage & market making framework. This role emphasizes infrastructure development, including data pipelines, integrations with exchanges, and scalable architectures. You’ll work closely with the fund’s leadership to implement reliable, high-performance solutions while ensuring security and efficiency. Note: Strategy development will be handled internally, so your focus will be on engineering excellence to support predefined trading logic.

This is a full-time position, remote-friendly, with competitive compensation including base salary, performance bonuses tied to fund success.

Key Responsibilities

• Design and implement scalable infrastructure for real-time data aggregation from CEXs and DEXs, including WebSocket clients, API integrations, and order book processing.
• Build and optimize data storage and caching systems using technologies like Redis for high-speed access and SQL databases for trade logging and analytics.
• Develop messaging and communication layers (e.g., using ZMQ) to ensure seamless interaction between services in our Python-based framework.
• Enhance system reliability with fault-tolerant designs, error handling, monitoring, and alerting to minimize downtime in live trading environments.
• Scale the platform for increased volume, incorporating cloud infrastructure (e.g., AWS, GCP) for deployment, containerization (Docker/Kubernetes), and CI/CD pipelines.
• Collaborate on integrating new exchanges, protocols, or tools while maintaining code quality through unit testing, code reviews, and best practices.
• Troubleshoot and optimize for low-latency performance, security (e.g., API key management, encryption), and compliance in a regulated financial context.
• Contribute to documentation and knowledge sharing to support team growth.
• Build and maintain real-time portfolio performance monitoring dashboards using robust database infrastructure (eg. Google Studio, Grafana, others)

Required Qualifications

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• 5+ years of experience as a software engineer, with a focus on backend development in high-stakes environments like fintech, trading platforms, or real-time systems.
• Strong proficiency in Python, including experience with libraries for data handling (e.g., Pandas, NumPy) and asynchronous programming (e.g., asyncio).
• Hands-on experience with databases and caching (e.g., Redis, SQL/PostgreSQL) and messaging queues (e.g., ZMQ, Kafka, or RabbitMQ).
• Familiarity with API integrations, WebSockets, and real-time data streams, ideally in crypto or financial markets.
• Knowledge of cloud platforms (AWS/GCP/Azure) and DevOps tools (e.g., Docker, Kubernetes, Terraform) for building scalable infrastructure.
• Understanding of performance optimization, concurrency, and security best practices in distributed systems.
• Excellent problem-solving skills and the ability to work independently in a fast-paced, startup-like environment.

Preferred Qualifications

• Experience in cryptocurrency or DeFi ecosystems, such as building trading bots, DEX integrations (e.g., Web3.py, Uniswap APIs), or handling blockchain data.
• Background in low-latency trading systems, high-frequency trading (HFT), or arbitrage platforms.
• Familiarity with our tech stack elements (e.g., Redis-based clients, ZMQ messaging) or similar frameworks.
• Contributions to open-source projects or experience in regulated finance (e.g., SEC compliance basics).
• Strong English reading and writing communication skills

What We Offer

• Competitive salary and bonuses based on individual and fund performance.
• 20% of trading profits.
• Flexible remote work with occasional team meetups.
• Opportunities for professional development, including conferences and training in crypto/fintech.
• A collaborative culture where your infrastructure expertise directly impacts trading success.

To apply, please send your resume to email. We look forward to building the future of crypto arbitrage with you!

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 multi-tenant 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 Staff Development Engineer to join our ZPA engineering team reporting to the Manager, Software Development Engineering. You'll be responsible for:

Collaborating with teams during design, and maintaining cloud-based software solutions Testing at scale, with proficiency in coding using Python to automate testing. Take ownership of diagnosing and resolving customer issues, including recreating production issues and providing necessary workarounds for resolution Providing insights to the development team to enhance the debug feature of the product Developing and maintaining robust and scalable test automation frameworks for our cloud security products Integrating the automated API into CI/CD system (Jenkins/Gitlab)

What We're Looking for (Minimum Qualifications)

Must have 5+ years of overall experience in Python programming Experience building tools and utilities to support the testing and development process, improving efficiency and productivity Proficiency in programming languages such as Python for test automation Experienced in automation framework development (Preferably PyTest) & test automation Proficient experience in Linux/Unix working environment

What Will Make You Stand Out (Preferred Qualifications)

Experience with designing and implementing enterprise-grade Security or Networking products Knowledge/Proficiency in AI code assists (Preferably Gemini code assist) Debugging skills in a complex Network/Cloud Infrastructure/HTTP/HTTPs/TLS issues in customer environments

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!

Learn more about Zscaler’s Future of Work strategy, hybrid working model, and benefits here.

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 Staff Software Engineer to join our ZDX team. Reporting to the Senior Manager, you'll be responsible for:

Leading the development of our large-scale distributed platform by leveraging Java technology stack, Streaming, event-driven architecture, and NoSQL databases Developing and implement best engineering practices to optimize team productivity and delivery timelines Discussing with product managers, UX designers, and other backend teams to understand requirements and translate the same into functional specifications

What We're Looking for (Minimum Qualifications)

7+ years experience in Core Java, Concurrency, Distributed Computing and Scalable web services Excellent communication skills with the ability to collaborate effectively with cross-functional teams Responsible for all stakeholder management including but not limited to business, product, and operations Experience using batch and stream processing frameworks like Spark/Kafka Streaming, Spring batch or equivalent Metrics-driven development experience and experience using metrics systems like Grafana, Prometheus, etc

What Will Make You Stand Out (Preferred Qualifications)

Ability to write code that can perform efficiently in a big data setup Experience with big-data technologies like Spark, Redshift, etc Strong knowledge of various DBMS systems including NoSQL architectures and design principles

LI-HYBRID

LI-SK3At 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!

Learn more about Zscaler’s Future of Work strategy, hybrid working model, and benefits here.

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 Safe

Safe is redefining the future of self-custodial onchain treasury management. It currently holds $>60B+ in onchain assets. Safe{Wallet} web and mobile is the de-facto standard for crypto native organizations, individuals and groups to co-manage assets via Multi-sig.

Safe{Wallet} infrastructure is widely used by developers integrating Safe. It is used for multi-million dollar treasury operations and governance by top protocols like World, Aave, Balancer and Gnosis. With more innovations in security and user experience, Safe is poised exponential growth in DeFi and onchain asset management.

💻 About the role:

We are seeking a Senior Full Stack Developer with strong frontend expertise to take end-to-end ownership of project delivery. You will collaborate closely with our tech lead and cross-functional team to design, build, and maintain high-quality, secure, and scalable applications with a primary focus on frontend (React, TypeScript) and the ability to contribute effectively to backend (NestJS, Node.js) development.

🗃️ What you will be doing:

• Own engineering delivery for assigned projects, from research to release

• Conduct technical research and propose solutions to PM-defined problems

• Build high-quality, scalable features - primarily in frontend React/TypeScript, with backend (NestJS, Node.js) contributions

• Implement testing and QA practices across the stack

• Participate in peer code reviews and support cross-team knowledge sharing

• Maintain strong security practices in development

• Collaborate with stakeholders to meet timelines and ensure delivery quality

🎒 What you will bring:

• Proven blockchain development experience (Ethereum preferred)

• Strong frontend expertise with React & TypeScript

• Backend skills with NestJS, Node.js, and security best practices

• Ability to design composable TypeScript structures

• Experience with open-source workflows

Core Competencies:

• Collaborative Owner: You balance independent work with active team collaboration.

• Technically Sharp: You excel in the required stack and apply best practices.

• Quality & Security Focused: You deliver secure, tested, and maintainable code.

• Adaptable Builder: You work across frontend, backend, and integrations as needed.

• Solution-Oriented: You research, propose, and deliver effective solutions.

• Blockchain Fluent: You bring hands-on Ethereum/blockchain development experience.

🎁 What we can offer you:

• 💻 Home Working Budget: Personalize your home office with a dedicated budget! Choose from a sleek desk, top-notch headphones, a comfy chair, and more. We're committed to creating a workspace that inspires you.

• 🏝️ 30 vacation days as standard: Take the time off you need no matter where you work. All of our contributors get 30 vacation days by default, with public holidays in addition.

• 📚 Continuous Learning: Invest in yourself with our personal education and conference budgets. Stay ahead of the curve by attending conferences, workshops, and courses that align with your professional growth.

• 🎨 Innovative Fridays: Unleash your creativity! Spend Friday afternoons diving into research or working on a side project within our exciting ecosystem. It's the perfect opportunity to explore new ideas and contribute to innovative endeavours.

• ⌛ Flexible Work Schedules: Embrace work-life balance with our flexible working schedules. We understand that everyone has unique needs, and our hybrid work policies empower you to choose a working >

Please apply with your English resume.

Variety is the spice of life and a celebrated component of our culture. At Safe, we strive to create an inclusive environment that empowers our employees. We believe that our products and services benefit from our diverse backgrounds and experiences and are proud to be an equal opportunity employer: 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.

Apply Now:

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 us:

Tria Finance is creating a DeFi protocol on the TON blockchain offering lending, borrowing, and deposits. The codebase is 70% complete, with ongoing improvements, bug fixes, and testing. Our next project will be a similar protocol on Ethereum.

Responsibilities:

• Develop and improve smart contracts on TON (using Tact) and Ethereum.
• Fix bugs and conduct testing, preferably with experience in Blueprint testing framework.
• Work with GitLab, Jira, and manage CI/CD pipelines.

Requirements:

• Experience in smart contract development on TON (Tact) or Ethereum.
• Knowledge of Fanci and testing experience is a plus.
• Proficiency in GitLab, Jira, and CI/CD tools.

What we offer:

• Competitive salary
• Full-time position with a service contract.
• Remote work.
• 28 days of vacation and 7 paid sick days.

How to apply: Send your application to @kristinasearch

Apply Now:

Moonberg.com is rewriting the playbook for crypto intelligence. Our AI-powered terminal streams 700 + real-time data points, from on-chain moves and to meme velocity, into one fully customizable dashboard. Large-language models sift the noise, rolling regressions surface true leading indicators, and any metric can trigger an automated trade or risk alert. The result: traders and institutions spot opportunities seconds sooner, dodge rugs before they trend, and finally escape the tab-juggling chaos of legacy tools.

We’re a battle-tested crew from Binance, AirBnb, SwissQuant, Microsoft, and Bitcoin Suisse, scaling fast with early adoption from degens, quants, and KOLs alike. If building low-latency data pipelines, shipping “wow” data, and turning fragmented crypto research into one decisive screen sounds like your idea of fun, you’ll fit right in. Knowledge is profit, come help us make it inevitable. 


Follow our journey on X (@moonbergai)

• Full stack development, including frontend, backend, and Web3 layers

• Build scalable dApps with integrations for wallets, DeFi, on chain data

• Collaborate on system architecture for performance, security, and interoperability

• Troubleshoot production issues and contribute to R&D on emerging trends.

  Requirements

• 10+ years in software development; 3+ in full stack with Web3 focus

• Experience integrating and interconnecting web3 packages and APIs

• Proficient in TypeScript, React, Node.js

• Fluent in English

Preferred Skills

• Multi-chain experience (ideally at least Ethereum and Solana)

• <a target="blank" rel="noopener noreferrer nofollow" href="http://Prisma.io">Prisma.io, Zod, tRPC+fastify.

What We Offer

• Work in a fully senior team

• Highly experienced colleagues and efficiency

• Very few meetings, no bs approach, get things doneH Q Competitive salary

• Fully remote with flexible hours

• Impactful project in a growing Web3 space.

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.

Who We Are:

Ethena Labs is at the forefront of the next wave of DeFi, dedicated to building products for modern finance. Ethena is a synthetic dollar protocol built on Ethereum that provides a crypto-native solution for money, USDe, alongside a globally accessible dollar savings asset, sUSDe.

Our core mission is to provide truly crypto-native financial solutions that are globally accessible and bridge the gap between TradFi and the digital asset economy. We believe in transparency, efficiency, and empowering both individuals and institutions with greater control over their assets.

What we are Doing:

Ethena Labs is actively building and deploying a suite of groundbreaking products designed to address key challenges and unlock new opportunities within the digital finance landscape.

Our flagship product, USDe, is a synthetic dollar backed by digital assets, and takes the novel approach of using a delta-neutral hedging strategy to maintain its peg. This provides a truly scalable and censorship-resistant digital dollar.

Building upon USDe, we offer sUSDe. sUSDe provides crypto-native rewards generated from funding rates in derivatives markets, offering an alternative to existing products tethered to the traditional financial system.

Furthermore, we are actively developing solutions to facilitate institutional adoption of digital assets. In partnership with Securitize and Blackrocks BUIDL fund, USDtb provides a more traditional, asset-backed stablecoin option, leveraging established financial infrastructure to appeal to institutional clients. Expanding on this, iUSDe is designed specifically for traditional financial institutions, incorporating necessary compliance features to enable them to access the crypto-native rewards our protocol generates, in an institutional-friendly manner.

Finally, our most ambitious undertaking to date is Converge, our joint blockchain initiative with Securitize. This hybrid blockchain is designed to be the nexus where DeFi meets the needs of CeFi and TradFi. Converge aims to be a primary issuance layer for tokenised assets, integrating seamlessly with existing DeFi protocols to provide institutions with an environment to participate in the decentralised economy.

Through these offerings, Ethena Labs is not just creating new financial products; we are building the foundational infrastructure for a more open, efficient, and interconnected global financial system.

Join us!

We are looking for a Senior/Staff Security Engineer to join us on this exciting journey, ensuring the security and resilience of our platform as we continue to grow.

Location: Outside of the USA and within 5+ hours of GMT

The Role

As a Senior/Staff Security Engineer, you will be at the forefront of securing the next generation of decentralized financial technology. You will take ownership of building and maintaining our platform’s security infrastructure, working across both on-chain and off-chain components. Your work will protect our users and ensure the integrity of our systems in the rapidly evolving crypto and DeFi landscape.

This is an opportunity to make a meaningful impact by contributing to a key part of our platform. You will be involved in every layer of security, from threat modeling and incident response to developing automation tools that streamline our operations. You’ll work closely with our development, DevOps, and product teams, embedding security into the DNA of our products while staying ahead of emerging threats.

What You’ll Do

• Design, develop, and implement security architectures and features for both on-chain and off-chain components of the platform, ensuring defense against vulnerabilities and attacks.
• Identify and mitigate risks by performing threat modeling, security hardening, and vulnerability assessments across the full tech stack.
• Lead incident response efforts, acting as the primary point of contact for security incidents and coordinating with internal and external teams to resolve issues.
• Conduct regular penetration testing and forensic investigations, ensuring identified security weaknesses are addressed swiftly.
• Develop security tools and automation scripts to enhance the efficiency and effectiveness of our security operations.
• Work closely with application development and DevOps teams to integrate security best practices into every stage of the software development lifecycle.
• Stay on top of emerging security trends, threats, and technologies, contributing innovative solutions to continuously improve our security posture.

What We’re Looking For

• 5+ years of hands-on experience in a security engineering or DevSecOps role, with demonstrated expertise in full-stack software security (back-end, front-end, and DevOps).
• Proficiency in designing and implementing robust security architectures for cloud-based systems, and strong experience in securing CI/CD pipelines.
• Experience in intrusion detection, forensic investigation, and leading security incident response.
• Strong understanding of security frameworks, principles, and best practices, with a proactive approach to risk management.
• Ability to effectively communicate security requirements and concepts to both technical and non-technical stakeholders.
• Expertise in Threat Detection and Response, and Endpoint Security is highly desirable
• Experience with crypto/web3 technologies, including smart contract audits, is highly desirable.
• Bachelor’s or Master’s degree in Computer Science, Information Security, or a related field.
• Industry certifications such as CISSP, OSCP, Sec+, or similar are a plus.

$150,000 - $200,000 a year

Why Ethena Labs?

• Join a forward-thinking, crypto-native company with a mission to revolutionize decentralized finance.
• Work alongside a passionate and innovative team that values collaboration and creativity.
• Enjoy a flexible, remote-friendly work environment with opportunities for growth and learning.
• If you subscribe to the mission of separating the dollar from the state, then we want to hear from you!
• We look forward to receiving your application and will be in touch after having a chance to review.

In the meantime, here are some links to more information about Ethena Labs to help you check us out:

• Website
• Twitter
• LinkedIn

WHO WE ARE: Zinnia is the leading technology platform for accelerating life and annuities growth. With innovative enterprise solutions and data insights, Zinnia simplifies the experience of buying, selling, and administering insurance products. All of which enables more people to protect their financial futures. Our success is driven by a commitment to three core values: be bold, team up, deliver value – and that we do. Zinnia has over $180 billion in assets under administration, serves 100+ carrier clients, 2500 distributors and partners, and over 2 million policyholders.WHO YOU ARE: You are a seasoned engineering leader with a proven track record of architecting, scaling, and leading world-class Developer Experience (DevX) and Developer Platform teams. You’ve successfully built internal platforms from the ground up or led transformations in complex, distributed organizations. You think strategically and act operationally — capable of setting a compelling vision while ensuring measurable delivery. You know how to balance developer empathy with technical excellence, and you lead with clarity, ownership, and influence. You’re passionate about driving innovation through enabling great engineering practices, and you know how to attract, mentor, and grow top-tier platform engineering talent. WHAT YOU’LL DO: As Director of Developer Platforms, you will own Zinnia’s DevX strategy and lead a team of senior managers and managers in building best-in-class infrastructure, tooling, and practices that enhance developer productivity, platform resilience, and software delivery velocity.

Define and execute the strategic roadmap for Developer Experience and Internal Developer Platforms at Zinnia. Lead, mentor, and scale a global team of managers, senior managers, and senior engineers across CI/CD, observability, dev environments, testing infrastructure, and automation platforms. Partner with Engineering, Product, Security, and SRE to design and evolve platform standards that scale with Zinnia’s rapid growth across regions and product lines. Drive architectural and operational excellence in internal developer systems — including build/deploy pipelines, sandbox environments, telemetry, fault injection systems, and release engineering frameworks. Ensure gold standards are codified into reusable tooling, opinionated golden paths, and secure-by-default frameworks. Establish and track engineering-wide KPIs around build times, release cadence, platform availability, MTTR, and test coverage. Champion engineering productivity initiatives — from friction audits to self-service tooling — that empower teams to ship faster and safer. Lead Zinnia’s cultural transformation toward a developer-first engineering mindset with high standards in reliability, security, quality, and delivery.

WHAT YOU’LL NEED:

15+ years of progressive software engineering experience, including 5+ years leading infrastructure, platform, or DevX teams at scale. Prior success in building or transforming a DevX or Developer Platform function — ideally in a modern cloud-native, microservices-based enterprise. Demonstrated experience managing managers and scaling globally distributed platform teams Proven ability to deliver high-leverage outcomes through strategy, people, and architecture. Deep expertise across modern CI/CD pipelines, developer tooling, observability frameworks, and quality automation. Strong working knowledge of tools like GitHub Actions, Jenkins, ArgoCD, Playwright, Selenium, JMeter, Chaos Mesh, OpenTelemetry, Prometheus, and service mesh technologies. Exceptional communication and stakeholder management skills — comfortable aligning senior technical leaders, engineering teams, and business counterparts. Data- and outcomes-oriented — able to define clear success metrics, drive adoption, and measure impact.

WHAT’S IN IT FOR YOU? Zinnia offers excellent career progression and competitive compensation. We offer great benefits, including health/dental insurance, parental leave, profit sharing, PF, incentive/bonus opportunity, tuition reimbursement, and so much more. We’re looking for the best and brightest innovators in the industry to join our team. At Zinnia, you collaborate with smart, creative professionals who are dedicated to delivering cutting-edge technologies, deeper data insights, and enhanced services to transform how insurance is done. Visit our website at www.zinnia.com for more information. Apply by completing the online application on the careers section of our website. We are an Equal Opportunity employer committed to a diverse workforce. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability.

LI-SN1

Apply Now: