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

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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.

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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.)

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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:

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 Unified API platform team. Reporting to the Director, you'll be responsible for:

Delivering a unified API and developer platform for ZScaler products, focusing on standardization, governance, and a seamless developer experience Creating and refining API development and integration processes, tools, and methodologies across ZScaler's product portfolio Leading the creation of a scalable distributed API platform, ensuring it is highly available, observable, and operable

What We're Looking for (Minimum Qualifications)

10+ years experience in the architecture, design, and development of API frameworks and technologies Experience in creating SDKs and designing APIs is required Experience with API design standards, best practices and API-first design principles Solid background in message brokers, caches, queues, and pub/sub concepts Proficiency in at least one programming language (Go, Java, C++, Rust, Go, Javascript etc)

What Will Make You Stand Out (Preferred Qualifications)

Demonstrated ability to work with product managers on external-facing products and roadmap development Dynamic collaboration with cross-functional teams and product managers

LI-HYBRID

LI-GL2At 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:

We’re seeking a highly skilled Senior/Staff Backend Engineer passionate about solving complex problems and motivated to shape the MEV landscape on Monad with high-performance solutions. In this role, you will help design, build, and optimize MEV-related infrastructure, with a focus on block building, transaction ordering, and low-latency execution strategies etc. You’ll work on systems at the intersection of blockchain, trading, and networking, helping to advance the frontier of MEV innovation.

What You’ll Do

• Design and implement performance-critical backend systems for MEV infrastructure throughout the transaction lifecycle.
• Contribute to the development of infrastructure for validator-client integration, relay communication, and block propagation.
• Optimize code for latency, throughput, and reliability in adversarial network conditions.
• Stay informed about MEV developments in Ethereum, Solana, and other ecosystems

What We’re Looking For

• 4-10 years of backend programming experience with expertise in low-level languages like C++ and Rust (experience in both is a plus, but not required).
• Proven backend engineering experience in MEV infrastructure, trading/searching, or block-building organizations.
• Experience designing production-grade, low-latency, high-performance networking architecture and distributed systems.
• Proven track record of technical leadership and project ownership from start to finish.
• Ability to work autonomously in a fast-paced, collaborative remote environment with strong ownership.

Nice to Have

• Familiarity with blockchain internals and validator client behavior.
• Contributions to open-source MEV infra or tooling projects.
• Experience in performance tuning and networking stack optimization.
• HFT experience.
• Academic background from a top-tier university and/or experience at a well-regarded technology company

Why Join Us

Work at the frontier of crypto and DeFi infrastructure Join a tight-knit, low-ego team with deep technical chops Competitive compensation, bonus and token upside Fully remote, flexible work culture

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.

Why This Role Matters

You’ll be our first engineering manager. You’ll lead a world-class team of engineers across multiple product lines and be the technical backbone and organizational glue that helps us scale while maintaining our fast-paced, high-impact culture.

What You’ll Do

• Lead a team of backend and systems engineers.
• Set a high technical bar: Lead design reviews, challenge assumptions, and guide architecture of distributed systems, low-latency services, and high-throughput APIs.
• Hire and grow the team: Own hiring end-to-end for your team with support from founders and recruiting.
• Work closely with founders to scale the company’s engineering culture, processes, and infrastructure.
• Execute fast in a demanding environment: Tradeoffs, uncertainty, pressure—we embrace it all.
• Drive impact on real crypto infrastructure used daily by top Solana teams and protocols.
• Split your time:
  • 60% engineering management (planning/execution, hiring, team health)
  • 25% technical leadership (system design, mentorship)
  • 15% coding (unblocking critical paths)

You’ll Thrive Here If You…

• Bring 1–2+ years of engineering management (startup or high-growth org) and know when to coach vs. dive in.
• Possess 5+ years of backend / systems engineering (Rust, Go, C++, or similar) and can still jump into code for a well-scoped fix or prototype.
• Have shipped and operated distributed, performance-sensitive systems (queues, caches, databases, pub/sub, low-latency services).
• Are comfortable hiring, coaching, and occasionally parting ways to keep the bar high.
• Communicate crisp trade-offs under pressure and keep teams laser-focused on outcomes.
• Care deeply about developer experience and impacting the Solana & crypto ecosystem.
• Are excited to shape Solana and broader web3 infra alongside an ambitious team.

Nice-to-Haves

• Production Rust expertise.
• Prior work on infra, DeFi, exchanges, or other high-throughput environments.
• Familiarity with Solana internals or web3 developer tooling.

What We Offer

• Competitive comp and equity.
• Fully remote + flexible work (core overlap with Americas time zones).
• Tight-knit, ambitious team with low ego and high ownership.
• A rare chance to shape the future of crypto.

We believe great managers amplify engineers. If you get energy from removing blockers, growing people, and occasionally rolling up your sleeves to unblock a launch or patch a critical bug, let’s talk.

Compensation Range: $250K - $300K

Waku is part of the Logos tech stack, 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.

As a p2p messaging protocol, born from the original Web3 vision, Waku is a decentralized, censorship-resistant, privacy-preserving communication network that enables anyone to message, interact, collaborate, co-ordinate without worrying about surveillance or deplatforming.

We are a cypherpunk group, looking for other builders to join a principle-first organisation and build truly decentralised software.

More about us:

• https://waku.org/
• https://github.com/waku-org/
• https://discord.waku.org/
• https://forum.vac.dev/
• Logos Manifesto

Responsibilities:

• Implement open protocols for peer-to-peer secure messaging.
• Create and maintain a sustainable and fault-tolerant distributed system.
• Write and maintain Nim code (nwaku codebase).
• Understand and optimise the core functionality of complex software systems.
• Provide feedback on overall design decisions, and participate in code reviews.
• Use libp2p to build infrastructure-level protocols.
• Support platforms and operators using nwaku software.
• Maintain Golang, Rust and other language SDKs built on top of FFI bindings.

Ideally, you have

• A passion for privacy-preserving, decentralised and blockchain technology.
• At least 4 years of software engineering experience, with low-level/strongly typed languages (C/C++/Go/Rust).
• Experience building networking-heavy applications and p2p networking specifically.
• Familiarity with message propagation in loosely connected networks.
• Familiar with p2p building blocks such as gossiping, routing and discovery (DHTs), and Nat traversal.

Bonus points if you have experience in:

• Embedded systems development experience.
• Contributed to a blockchain-related, open-source project.
• Experience with Valgrind, or gdb, or gprof or perf.
• Experience with off-the-shelf networking stacks such as libp2p.

Compensation:

We are happy to pay in a mix of fiat and/or crypto. For more information regarding contributing to IFT: https://contributors.free.technology/

Hiring process:

1. Introduction call with People Ops team
2. Pair programming session with nwaku team member
3. Technical & Culture Interview with nwaku team lead
4. Interview with Waku 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.

About Us

Join a team of brilliant minds and hardcore engineers dedicated to solving some of the most challenging problems in software engineering today. We offer a unique opportunity to work on algorithmically intensive, design-heavy projects that are novel and groundbreaking. If you’re an excellent problem solver motivated by tackling complex challenges, and you thrive on innovation and collaboration, we’d love to have you on board.

How to Know If You’re the Right Fit

If you’re driven by complex challenges and excited by the prospect of working with cutting-edge technologies, this role is for you. We’re looking for individuals who are not just engineers but innovators—those who are eager to collaborate with the best minds in the industry and make a significant impact on the future of technology.

Why This Role Is Exciting

• Work with the Best: Collaborate with some of the brightest engineers and researchers in the industry.
• Innovative Challenges: Tackle projects that require deep algorithmic thinking and advanced design.
• Impactful Work: Contribute directly to the development of technologies that push the boundaries of what’s possible.
• Collaborative Environment: Partner with leading developers and researchers shaping the future of decentralized technologies.

Responsibilities

Algorithm and System Design:

• Develop and implement efficient algorithms and complex data structures.
• Design scalable, high-performance systems and components.
• Innovate solutions for new and novel technical challenges.

Software Development:

• Build and enhance high-throughput, low-latency systems.
• Implement advanced networking layers and protocols.
• Optimize software for performance, scalability, and reliability.

Collaboration and Leadership:

• Work closely with industry-leading developers and researchers.
• Participate in code reviews, architecture discussions, and collaborative problem-solving sessions.
• Mentor and guide junior engineers within the team.

Research and Innovation:

• Stay abreast of emerging technologies and industry trends.
• Contribute to research initiatives and publish findings where applicable.
• Experiment with new tools and technologies to push the boundaries of what’s possible.

Skills and Qualifications

Technical Expertise:

• Exceptional problem-solving skills with a passion for tackling complex, algorithmic challenges.
• Strong experience in software development.
• Familiarity with Rust, GO or C# is a plus but not mandatory.
• Deep understanding of software architecture, design patterns, and system design principles.
• Experience with distributed systems, networking, or low-level programming is advantageous.

Personal Attributes:

• Entrepreneurial mindset with a drive to innovate and take ownership of projects.
• Ability to work independently in a fast-paced, dynamic environment.
• Excellent communication and teamwork skills.

Experience:

• Several years of professional experience in software engineering.
• Proven track record of solving complex technical problems and delivering high-quality solutions.

Opportunities

Collaborate with Leading Organizations:

• Work alongside the best developers and organizations in the industry (Ethereum Foundation, Starknet, Gnosis, and many others).

Innovate in a Non-Boring Environment:

• Dive into projects that are new and novel—not your typical enterprise tasks.
• Be at the forefront of technological innovation in the industry.

Examples of Projects You Might Work On

• Designing and implementing new consensus algorithms.
• Optimizing virtual machines or compilers for better performance.
• Implementing advanced P2P networking protocols for high-performance distributed systems.
• Developing efficient data structures for state representation in distributed systems.
• Contributing to open-source projects and publishing innovative research.
• Developing SDKs for the best DevEx in the industry.

Perks and Benefits

• Professional Growth: Continuous learning opportunities and the chance to work with industry leaders.
• Fully Remote: Work from anywhere in the world.
• Flexible Working Hours: Manage your own schedule to balance work and life effectively.
• Competitive Compensation: Attractive salary plus equity options.

Parity Technologies is looking to hire a Developer Experience (DevEx) Manager to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

Parity Technologies - Blockchain infrastructure for the decentralised web.

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 Status Network

Status Network - the first natively gasless Ethereum L2 - is hiring a bilingual Developer Relations & Community Manager to lead our presence in South Korea.

Status Network’s roadmap includes deep integrations with Korean studios, gamers, and social apps builders. You will be the bridge between Status Network and the Korean builder community. This role is a unique blend of local developer community building, content creation, technical education, and strategic partnership management. The ideal candidate is a builder at heart, deeply embedded in Korea’s crypto scene, and driven by the mission to make developers discover a new way to build onchain - without gas.

Key responsibilities

• Launch, manage & moderate Korean-language channels (Telegram, Discord, KakaoTalk, Naver, Youtube, etc.)
• Design daily/weekly engagement loops; track sentiment & surface insights
• Produce Korean-first technical documentation, tutorials, code samples, blog posts, memes and “how-to” videos to make building on Status L2 intuitive and fun
• Run webinars, IRL meet-ups, hackathon tracks, and university workshops; report measurable impact (attendance, submissions, conversions)
• Onboard builders to Status L2; provide code samples and live demos
• Mentor power users and builders and KOLs; identify and amplify success stories
• Cultivate relationships with Korean web3 studios, infra providers, K-media, and event organisers
• Localise global campaigns (airdrops, quests, dev-grants) to maximise Korean participation
• Own community analytics (growth, retention, funnel KPIs) in GA / Dune / Notion
• Channel product pain-points and market trends back to engineering and leadership

You will ideally have

• Native-level Korean & professional English (written + spoken)
• 2+ yrs DevRel, developer education, or technical community building
• Hands-on coder - comfortable reading / shipping Solidity, TS or Rust and demoing live. Strong grasp of blockchain fundamentals, especially Layer 2 architectures.
• Ability to create content - we welcome all format but video will be prioritized
• Strong documentation and blog posts writing skills - able to review and suggest changes on existing documents
• Track record running ≥ 5 AMAs, hackathons, or workshops with published metrics
• Data-driven mindset; can design experiments and report RO
• Belief in open-source, self-custody, and cypherpunk ethos
• Experience in, and passion for, blockchain technology

Bonus points

• Proficiency in another Asian language
• Prior work at a rollup, DeFi, GameFi, or crypto infra project
• Existing network across builder communities at universities, Kakao, meetups, and indie hacker spaces
• Have an active YouTube or TikTok channel
• Have experience writing announcements, whitepapers, and legal-compliant materials for Korean audiences
• Public-speaking experience at conferences or YT/Twitch streams
• Familiarity with Ethereum L2s, RLN, zkEVMs, or onchain gaming UX
• Comfortable working remotely and asynchronously
• Experience working for an open source organisation.

[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

• Interview with our People Ops team
• Community and ecosystem interview
• Technical interview and test
• Interview with the Status Network team lead

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.

Apply Now:

Apply Now:

Serokell is a fast-growing, fully remote software development company that works on innovative solutions for complex problems. We’re packed full of adventurous, curious, and inclusive folks who want to build cutting-edge software with modern technologies like functional programming.

This position is open now with a July start. This is a project-based hire with the option to extend if it is a good match. Submit your CV and we’ll reach out promptly.

We’re seeking a middle to senior level Solidity Developer to join a team of fierce and fun Serokellers.

Hiring Process Overview: We invite candidates to the HR screening as the first step. Next, we conduct a technical interview with those whose profiles align with our requirements. Successful candidates will receive an offer.

Requirements:

• Fluency with Ethereum or another EVM-based blockchain ecosystem
• 2+ years in software development
• 1+ years experience writing, testing, and deploying Solidity contracts
• Hands-on experience with Hardhat, Foundry, Truffle, or Remix for development, testing, and debugging, including transaction submission, data retrieval, and key management
• Understanding of security issues and best practices for Ethereum and De-Fi applications
• Knowledge of popular token standards such as ERC-20, ERC-721, and ERC-1155
• Experience developing and integrating decentralized applications, both backend and frontend
• Basic understanding of cryptography primitives: public/private keys, signing, encryption, hashing
• Knowledge of fundamental algorithms and data structures like hash tables, binary search trees, DFS, quicksort
• Strong coding practices, including clean code structure, use of git, pull requests, and code review
• Fluent English, strong communication and collaboration skills
• Comfortable with daily stand-ups and asynchronous updates
• Self-driven, proactive, teamwork-oriented, curious and inclusive mindset
• Full-time commitment, around 140–160 hours per month
• Comfortable overlapping with team time zones from UTC 0 to UTC -8

It will be a significant plus if you have:

• Knowledge of TypeScript, Haskell, Rust, or OCaml
• Experience conducting security audits and identifying vulnerabilities
• Understanding of computer networks, HTTP, TCP/IP stack, and data synchronization models used in modern service APIs
• Familiarity with build/deploy automation tools and CI/CD systems such as Docker, Nix, Kubernetes

Responsibilities:

• Create and implement secure and efficient Solidity contracts, ensuring scalability, reliability, and maintainability
• Integrate contracts with EVM blockchain networks, often involving backend or frontend work
• Review and audit code
• Develop and execute unit tests, integration tests, and end-to-end tests
• Write detailed documentation for code, including design specs, user guides, and API documentation
• Stay updated on the latest developments in Solidity, Ethereum, and EVM-related technologies, cryptographic methods, and relevant programming languages
• Optimize code performance and gas efficiency
• Implement and enforce security best practices to protect contracts from common vulnerabilities
• Provide ongoing support and maintenance for deployed applications, addressing user-reported issues and bugs

We offer:

• Competitive salary.
• Engaging international projects.
• Participation in leading global conferences.
• International and multicultural teams.
• Fully remote work with flexible hours.
• Ability to take time off as needed.
• Investment in career and professional growth, with potential for wage increases.
• Mentoring and training programs.
• Opportunity to contribute to a leading functional programming blog.
• Therapy sessions for well-being support.

By joining Serokell, you’ll become part of a warm community of ingenious engineers, computer scientists, designers, marketing experts, and other inventive minds. You’ll work on ambitious projects building the next generation of computer software, explore creative initiatives unhindered by bureaucracy, and enjoy our vibrant Slack channels—ranging from #music to #philosophyandtears (did we mention the massive custom emoji set?).

Stay in the loop.

Follow @raikucom on Twitter for product updates, engineering deep dives, and a closer look at how we’re building the future of blockspace.

About Raiku

Raiku is reengineering blockchain infrastructure from first principles to make global digital markets as precise and dependable as physical systems. Built on Solana, our platform delivers deterministic execution, guaranteed inclusion, and low-latency performance—solving the foundational failures that cause transactions to miss, trades to revert, and systems to collapse under pressure. By placing high-performance compute close to where transactions happen and coordinating execution through our advanced scheduling engine, Raiku empowers developers to build scalable, high-performance applications—and gives institutions the reliability and control they demand. We believe financial infrastructure should behave like physics: fast, reliable, and predictable—every time, without exception.

Research Engineer (Solana/Rust)

We’re seeking a passionate Research Engineer to drive protocol-level innovation on Solana. As the ideal candidate, you’ll combine deep technical expertise with scientific curiosity to:

• Lead technical discovery initiatives focused on Solana’s runtime, consensus, scheduler, and networking layers
• Conduct performance modeling and develop validator-centric architecture solutions
• Identify and address complex edge cases in transaction handling across production environments
• Translate research findings into actionable protocol design improvements

You’ll collaborate directly with our CEO, CTO (your manager), protocol architects, and key Solana ecosystem contributors to shape validator economics and transaction lifecycle guarantees across the Raiku stack.

Key Responsibilities

• Analyze and model Solana’s core architecture — deeply understand and document Solana’s runtime, scheduler, consensus, Turbine/Gossip, and transaction pipeline, with emphasis on edge cases under network stress or validator misbehavior.
• Lead internal research on validator economics and incentive alignment — explore impacts of Raiku’s slot marketplace, Ahead-of-Time (AOT) block auctions, and inclusion guarantees on validator profitability and slashing risks (e.g. under SIMDs 0096, 0123, 0212, 0228).
• Design bandwidth and blockspace pricing models — define and simulate pricing mechanisms for Raiku’s primary and secondary slot markets, ensuring validator rewards and application inclusion needs are economically aligned.
• Prototype system-level experiments across the Raiku and Solana stack — evaluate performance, liveness, and correctness when integrating Raiku’s ackermann-node and sidecar into Solana validator clients (e.g. Agave, Jito).
• Develop proofs-of-concept for transaction lifecycle primitives — such as pre-confirmations, slot reservations, and proof streaming for large bundled state transitions.
• Research and benchmark global account models — test interaction models across multiple VMs (e.g. SVM, EVM, MOVE) and assess state determinism and composability in high-throughput environments.
• Contribute to the design of Raiku’s protocol-level mechanisms — including builder commitments, proposer formats, MEV mitigation strategies, and slot slashing logic under failure modes.
• Author technical deep dives, simulations, and RFCs — serve as a knowledge base for both internal and external stakeholders across Raiku’s validator, capital, and app layers along with wider engineering and marketing teams.
• Collaborate with external researchers and validators — especially those running testnet sidecars or participating in bandwidth resale to ensure safe and performant mainnet integration.

Preferred Qualifications

• Technical background with strong system-level experience
• Proven open-source engineering background, evidenced by contributions to major blockchain or distributed systems repositories — ideally within the Solana ecosystem.
• Involvement in protocol research, MEV, performance tuning, or client implementations
• Experience designing proofs-of-concept for novel execution or slot-inclusion logic
• Familiarity with zero-knowledge proof systems and state settlement patterns
• Active presence in relevant research circles, Discords, or open-source forums

What We’re Looking For

• 3+ years of experience working with Rust in production (preferably in core systems or blockchain contexts)
• Deep familiarity with Solana’s source code and protocol-level architecture (runtime, scheduler, consensus, networking)
• Demonstrated ability to reason through complex distributed systems
• Experience modeling and explaining performance bottlenecks in real-world validators
• Ability to read protocol proposals and specs and convert them into actionables (e.g. implementation paths, test harnesses, edge case coverage)
• A deep design philosophy focused on deterministic execution and reliable system behavior
• Strong communication skills and clarity in technical writing

What We Offer

• A chance to join a category-defining protocol team pushing the frontier of Solana infrastructure
• Token upside and a key role in shaping Raiku’s ecosystem footprint
• Remote-first team with async workflows, a high ownership culture, and deep technical curiosity
• Competitive salary, token allocation, and performance-based bonuses
• Budget for travel, ecosystem events, and home office setup