<p>We’re a YC-backed startup, looking for a founding engineer to join our experienced, hard-working, and humble team.</p><p><br></p><p>Our team members have previously worked at both big tech and startups, building systems that served hundreds of millions of users.</p><p><br></p><p>We welcome candidates from all backgrounds. You don’t need to have worked with LLMs before - though a plus.</p><p><br></p><p>We require you to have solid work experience with the following fundamental traits:</p><p><br></p><p>- A strong drive to ship quality code.</p><p><br></p><p>- A hunger to constantly learn.</p><p><br></p><p>- A nice team player who is enjoyable to work with.</p><p><br></p><p>We look forward to hearing from you!</p><p><br></p><p><br></p><p>----------------------------</p><p><br></p><p>About Berry</p><p><br></p><p>At Berry, we're on a mission to revolutionize customer onboarding and training with our AI-powered Customer Success Managers. We're a small, dynamic team looking for innovative minds to help us scale and enhance our services for SaaS companies worldwide.</p><p><br></p><p>Why Berry?</p><p><br></p><p>- Work with cutting-edge AI technology in the SaaS industry.</p><p>- Be part of a close-knit team where your contributions have a direct impact.</p><p>- Join a Y Combinator-backed startup with a vision for growth.</p><p>- Enjoy the flexibility and creativity that comes with a small team environment.</p>

Founding Full Stack Engineer - LLM, Applied AI (no prior LLM experience required)

<p><strong>Stay in the loop.</strong></p><p>Follow <a class="font-medium hover:text-gray-900 transition-colors" href="https://x.com/intent/user?screen_name=raikucom" target="_blank" rel="noopener">@raikucom</a> on Twitter for product updates, engineering deep dives, and a closer look at how we’re building the future of blockspace.</p><ul><li><strong>Location:</strong> Remote (Europe-friendly time zones preferred)</li><li><strong>Type:</strong> Full-Time</li><li><strong>Compensation:</strong> Competitive Salary + Token Allocation</li></ul><h2 id="about-raiku">About Raiku</h2><p>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.</p><h2 id="the-role">The Role</h2><p>As a Senior Rust Core Engineer at Raiku, you will spearhead our engineering efforts, driving the innovation and implementation of next-generation high-performance distributed systems. You will work with a highly proficient team of core engineers who have all contributed to foundational and novel network components.</p><p>We believe in hiring only exceptional individuals who are highly motivated to work on complex core infrastructure challenges and are motivated by a coherent system design philosophy that will drive our industry forward. Expect frequent group discussions on architecture, new design specs and code reviews. We are all deeply committed to frequently shipping quality code.</p><h2 id="about-the-engineering-team">About the Engineering Team</h2><p>As a team, we are building an entire platform written in Rust, which connects the L1 and L2s and allows us to create deeply complex scenarios and interactions with the running network. While your primary focus for this role is Rust and complex interactions with different components, you will likely also be involved in infrastructure (e.g., k8s), script writing, and supporting projects in other languages (e.g., Go). Working at every level of the stack is necessary to understand the big picture and how everything is wired together.</p><h2 id="responsibilities">Responsibilities</h2><ul><li>Highly motivated to contribute to our mission and be part of something bigger. Excited to work on projects that are ground-breaking and complex</li><li>Refactor, improve and lead software design implementation</li><li>Communicate effectively with the team and document your code. It is also expected that founding engineers mentor less experienced engineers.</li><li>Read and understand protocol specifications and be able to break them into issues and turn them into Rust code.</li><li>Maintaining a large codebase with many components and keeping it well-designed, future-proofed, modular and highly performant</li><li>Automate security testing processes and benchmarks, creating innovative tools and frameworks for continuously improving our systems.</li></ul><h2 id="what-you-ll-bring">What You’ll Bring:</h2><ul><li>A bachelor’s or master’s degree in Computer Science, Engineering, or a related technical field, coupled with practical experience in blockchain systems.</li><li>At least 3 years of experience in distributed systems, with a deep technical understanding of L1 and L2 architectures.</li><li>Strong proficiency in Rust, with at least 2-3 years of Rust experience.</li><li>Strongly emphasising writing performant and secure code.</li><li>Demonstrated experience in designing, developing, and deploying scalable distributed systems.</li><li>An analytical mindset with the ability to anticipate and mitigate emerging security threats, leveraging a comprehensive understanding of the blockchain landscape.</li></ul><h2 id="preferred-qualifications">Preferred Qualifications</h2><ul><li>Active open-source contributions in core protocol engineering (such as Firedancer, Reth, Lighthouse, Geth, …).</li><li>Direct involvement in the Solana ecosystem, with contributions to Solana’s runtime, scheduler, or other core systems.</li><li>Experience writing Solana Program Library (SPL) and Anchor or similar frameworks</li><li>Active engagement with the blockchain security research community, evidenced by contributions to open-source projects, publications, or presentations at notable conferences.</li></ul><h2 id="benefits">Benefits</h2><ul><li>Competitive remuneration packages based on iterative market research, including tokens</li><li>Remote-first and self-initiating with flexible hours</li><li>Work with team players who are genuinely excited about their impact and projects.</li><li>A dynamic and collaborative work environment that fosters innovation and recognises individual contributions to collective success</li><li>Opportunities for professional growth and advancement within a rapidly growing technological frontier</li></ul>

Senior Rust Engineer (Core)

<div>Lume Finance is hiring a </div><div> <p style="font-size: 12px" data-bs-toggle="tooltip" data-bs-placement="top" title="Estimated compensation based on similar jobs"> Compensation: $84k - $150k <span style="font-family: sans-serif !important;"> estimated </span> </p> </div><div> <div> <p style="">Location: Remote</p> </div> </div><div> <p style="">Location: Remote</p> </div><div> <a rel="nofollow noopener" href="/i/0EDO1ATM" target="_blank" class="my-btn my-btn-primary-maximum"> Apply Now </a> </div>

Data Engineer Blockchain Analytics

<h2 id="about-us">About Us</h2><p>Re7 Capital is a London-based cryptoasset investment firm, leveraging our deep crypto network and proprietary data infrastructure to drive investment decisions across various DeFi and alpha strategies. Through Re7 Labs, we also collaborate with leading projects and blockchains to design DeFi ecosystems, provide on-chain risk curation, and deliver vault management services.</p><p>Our team combines expertise in investment management, data science, and crypto. To support our continued growth, we are seeking a motivated Full Stack Web Developer to join our engineering team. Reporting directly to the Head of Technology, you will take full ownership of our dApps, used to interact with our vault smart contracts.</p><h2 id="responsibilities">Responsibilities</h2><ul><li>Develop and maintain responsive, user-friendly front-end interfaces using React, Next.js, Vue or similar frameworks.</li><li>Integrate EVM and non-EVM smart contracts using libraries like Ethers.js, Web3.js, Viem, Starknet.js and wallet connectors such as ConnectKit and wagmi.</li><li>Support wallet integrations including MetaMask, Argent X, and Braavos.</li><li>Design and implement scalable back-end services and APIs using Node.js, Express, and related technologies.</li><li>Collaborate with blockchain engineers to interact with smart contracts and on-chain data.</li><li>Implement best practices for security, including wallet connectivity, transaction handling, and protection of user data.</li><li>Deploy and maintain applications on AWS (EC2, Elastic Beanstalk, S3, CloudFront), with a focus on scalability, logging, and monitoring.</li><li>Set up and manage CI/CD pipelines using GitHub Actions or similar tools to automate testing and deployment workflows.</li><li>Deploy applications to decentralized hosting environments (e.g., IPFS, Fleek) as well as cloud-based infrastructure.</li><li>Ensure performance optimization through CloudFront caching, invalidation strategies, and SSL/TLS management.</li><li>Contribute to Whisk infrastructure and security, ensuring resilient and secure production deployments.</li><li>Work closely with designers, PMs, and cross-functional teams to define and deliver new DeFi features and enhancements.</li><li>Implement and maintain interactive UI elements and animations using modern HTML/CSS (including transitions, keyframes, and responsive styling) within PHP-based web applications.</li></ul><h2 id="requirements">Requirements</h2><ul><li>Proficiency in JavaScript/TypeScript and PHP.</li><li>5+ years of experience in web development, including 3+ years in dApp development.</li><li>Hands-on experience integrating and interacting with both EVM and Non-EVM smart contracts.</li><li>Familiarity with ConnectKit, wagmi, and Viem libraries for modern wallet connection flows.</li><li>Experience deploying web applications on AWS using services like Elastic Beanstalk, EC2, and S3, with understanding of environment config, auto-scaling, and CloudWatch logging.</li><li>Proficient in setting up CI/CD pipelines using GitHub Actions (or similar tools), including artifact packaging and automated deployment.</li><li>Working knowledge of CloudFront, CDN behavior, cache invalidation, and AWS Certificate Manager.</li><li>Familiarity with IAM roles, security groups, VPC setup, and cloud infrastructure security best practices.</li><li>Experience with front-end frameworks (React, Next.js, Vue, etc.)</li><li>Comfortable working in Linux environments and using Git for version control.</li><li>Understanding of DeFi concepts and major protocols (e.g., Uniswap, Aave, Curve).</li><li>Awareness of and ability to support Whisk infrastructure and security requirements.</li><li>Basic knowledge of HTML5, CSS3, and animation techniques (e.g., transitions, keyframes, scroll-triggered effects), with the ability to integrate them into PHP-rendered views or templating engines.</li></ul><h2 id="benefits">Benefits</h2><ul><li>A dynamic, collaborative, and highly technical work environment.</li><li>Opportunities for professional growth in a rapidly evolving industry.</li><li>Remote-first setup with regular opportunities to meet the team in person.</li><li>Competitive compensation package.</li></ul><h2 id="application-process">Application Process</h2><p>Please submit the following:</p><ul><li>Your resume</li><li>A cover letter explaining your interest in the role</li><li>Your response to the following technical challenge:</li><li><strong>Challenge:</strong> Describe a high-level architecture and solution for a dApp that supports both EVM and non-EVM wallets (e.g., MetaMask and Braavos). Include considerations for wallet detection, abstraction, and secure transaction signing.</li></ul>

Full Stack DeFi Web Developer

<h2 id="about-the-codex-student-program">About the Codex Student Program</h2><p>The <strong>Codex Student Program (CSP)</strong> is aimed at Bachelor, Master’s or PhD students looking to gain experience and do research and development in one of the domains of interest related to the Codex project. The grant is intended to help students gain visibility into their field of interest while also allowing them to learn about standard research and development practices that should be beneficial for their continuing careers.</p><h2 id="responsibilities">Responsibilities</h2><ul><li>Create engaging developer-focused content (blog posts, tutorials, social media)</li><li>Build simple demonstrations and code examples showcasing our technology</li><li>Assist with content strategy and identify topics that resonate with developers</li><li>Help measure and track the impact of content initiatives</li><li>Collaborate with product and engineering teams</li></ul><h2 id="requirements">Requirements</h2><ul><li>Currently pursuing a degree in Computer Science or related field</li><li>Basic coding experience, particularly in technologies we use in Codex</li><li>Strong written and verbal communication skills</li><li>Curious about decentralized technologies and storage solutions</li><li>Ability to explain technical concepts clearly</li><li>Self-motivated and comfortable working in an async, fast-paced environment</li></ul><h2 id="the-grant">The Grant</h2><p>The CSP is very flexible and adapts to different levels of experience and various lengths. The following numbers are just indicative, as the final stipend might slightly change depending on the student experience and to adapt to differing regions’ costs. For an officially enrolled PhD student, the CSP offers a stipend in the range of $2,000/month (full-time equivalent).</p><p>In addition, the CSP may offer mobility grants to attend meetings and related conferences within the scope of the internship’s research field.</p><h2 id="application">Application</h2><p>To submit your application, please fill out this form providing the following documents:</p><ul><li>Up-to-date Curriculum Vitae</li><li>A cover letter expressing your research interests</li><li>Proof of enrollment in your university</li><li>Reference letter from one of your university professors</li><li>Applications will be evaluated a few weeks after submission. Students passing the initial evaluation will be contacted to pass a short interview.</li></ul><p><em>The fees, duration of the agreement, and deliverables shall be reviewed on a case-by-case basis and as set out in the contractor agreement to be signed by the student. Please consider that once you have signed the agreement, you must comply with the local regulations for the provision of the services that are applicable in your country of residence or nationality.</em></p>

Students Program Codex: Junior Developer

<p><strong>Stay in the loop.</strong></p><p>Follow <a class="font-medium hover:text-gray-900 transition-colors" href="https://x.com/intent/user?screen_name=raikucom" target="_blank" rel="noopener">@raikucom</a> on Twitter for product updates, engineering deep dives, and a closer look at how we’re building the future of blockspace.</p><ul><li><strong>Location:</strong> Remote (Europe-friendly time zones preferred)</li><li><strong>Type:</strong> Full-Time</li><li><strong>Compensation:</strong> Competitive Salary + Token Allocation</li></ul><h2 id="infrastructure-devops-engineer-at-raiku">Infrastructure &amp; DevOps Engineer at Raiku</h2><p>As an Infrastructure &amp; DevOps Engineer at Raiku, you will lead critical engineering efforts that drive the performance and scalability of next-generation distributed systems. You’ll join a highly proficient team of core engineers, all of whom have contributed to foundational and novel infrastructure innovations.</p><p>We believe in hiring exceptional individuals who are deeply motivated by complex core infrastructure challenges and guided by a coherent system design philosophy that moves our industry forward. Expect frequent group discussions on architecture, design specs, and code reviews. We ship quality code quickly and often — and we are deeply committed to it.</p><h2 id="about-raiku">About Raiku</h2><p>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.</p><h2 id="about-the-team">About the Team</h2><p>Our entire platform is built in Rust, connecting Solana’s L1 with advanced L2 extensions and enabling deeply complex network interactions. Your primary focus in this role will involve Rust systems programming, infrastructure architecture (e.g., Kubernetes), and operational scripting across languages such as Rust, Go, and Typescript. Full-stack understanding — from bare metal to application interfaces — is critical to success here.</p><h2 id="what-you-ll-bring">What You’ll Bring</h2><ul><li>4+ years of experience in infrastructure engineering, preferably within high-standard fintech, data, cloud, or DevOps environments.</li><li>Senior-level experience as an SRE or Infrastructure Engineer with a strong Kubernetes background.</li><li>Deep proficiency with Infrastructure as Code tools (Terraform/Terragrunt) and infrastructure automation (Helm, GitOps).</li><li>Familiarity with monitoring and alerting using Prometheus and PromQL.</li><li>Experience with infrastructure and data security practices, including KMS and HashiCorp Vault.</li><li>Ability to ship high-quality, opinionated architectural choices and uphold software best practices.</li><li>Strong communication skills in English (both written and spoken).</li></ul><h2 id="our-stack">Our Stack</h2><ul><li><strong>Infrastructure</strong>: AWS/GCP + bare metal, Kubernetes, Terraform/Terragrunt, Prometheus/Thanos, Helm, HashiCorp Vault, FluxCD</li><li><strong>Languages</strong>: Rust, Golang, Typescript, PostgreSQL</li><li><strong>Smart Contract Development</strong>: Anchor, Solana Program Library (SPL)</li></ul><h2 id="preferred-qualifications">Preferred Qualifications</h2><ul><li>Experience operating validators on distributed networks.</li><li>Active engagement with the blockchain security research community, through open-source contributions, publications, or speaking at conferences.</li></ul><h2 id="benefits">Benefits</h2><ul><li>Competitive compensation packages based on ongoing market analysis, including tokens.</li><li>Remote-first culture with flexible hours — self-initiative and independence are highly valued.</li><li>Work with highly talented engineers passionate about building the future of the internet.</li><li>A collaborative and dynamic work environment that rewards individual ownership and impact.</li><li>Opportunities for rapid professional growth within one of the most technically ambitious projects in web3.</li></ul>

Infrastructure & DevOps Engineer

<p>Blockchain is looking to hire a Software Engineering Intern, Activation to join their team. This is an internship position that is based in Paris.</p><p>Blockchain - The world's leading crypto finance house serving people, projects, protocols and institutions since 2011.</p>

Software Engineering Intern, Activation

<p>Tokemak is looking to hire a Web3 Junior Frontend Engineer to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.</p><p>Tokemak - Tokemak is a Web3 protocol designed to optimize yield across LSTs and DEXs.</p>

Web3 Junior Frontend Engineer

<p>Circle is looking to hire a Lead Analyst, Third Party Security to join their team. This is a full-time position that can be done remotely anywhere in the United States.</p><p>Circle - USDC &amp; Web3 Services for a new financial system.</p>

Lead Analyst, Third Party Security

<p>Exodus is looking to hire a QA Analyst to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.</p><p>Exodus - A self-custodial crypto wallet.</p>