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Solidity Developer Full-time/Company: Serokell 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. Apply: 👈 ⚡️Please mention @remotejobshg when you apply for this job

Senior Content Manager Full-time/Company: Risk Labs Risk Labs is the foundation and core team behind the UMA and Across projects. UMA and Across are decentralized protocols governed by community members across the globe in DAOs, and are supported by Risk Labs Foundation. Across is a crosschain bridge for L2s and rollups secured by UMA’s OO. Who You Are: - A storyteller with technical range: you can write authoritatively about DeFi and break down complex ideas clearly. - A content operator: you bring structure and clarity to chaos, and can run a disciplined editorial process. - LLM Obsessed: you are on top of AI innovation, and love implementing new AI tools to hack content strategy and creation. - A collaborator: you work well with stakeholders across product, marketing, and engineering. - A leader: you raise the bar for others and aren’t afraid to give direct, constructive feedback. - A strong communicator: you can support a fluid information flow between engineers, PMMs, and content team members. Requirements: - 4+ years of experience and a demonstrated track record of success in content strategy, project management and copywriting - Excellent editorial judgment and a thorough grasp of how to edit across a variety of topics: Voice & tone guidelines, brand guidelines, and audiences - Have a writer’s mindset, eye for detail, and ability to provide objective feedback - Manage multiple work streams, from concept to completion, by anticipating challenges, setting up success measures, and reporting - Being an avid cryptocurrency enthusiast is a must! It’s okay if you haven’t worked in crypto before, but knowledge about the field is essential - You are extremely organized, detail-oriented, and catch all typos or grammatical errors - Fluent in SEO and performance marketing. You understand how to optimize for search, track organic traffic impact, and execute paid media to create content that performs. Compensation and Benefits: - Pay packages include competitive salaries & meaningful token options - Salaries for this role range from $90k-$120k (USD), and your token allocation can grow with your voting rewards while you participate in the growing ecosystem - Will pay in stablecoins or fiat - Philosophies for a culture that show we care: Take vacation when you need it, family care, training and development (just to name a few) - 100% remote, which means we encourage you to create the work environment that you thrive in At least two team wide offsites a year Apply: 👈 ⚡️Please mention @remotejobshg when you apply for this job

Protocol Engineer (Native Libraries) Full-time/Company: Waku 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. 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. Hiring process: - Introduction call with People Ops team - Pair programming session with nwaku team member - Technical & Culture Interview with nwaku team lead Interview with Waku lead Apply: 👈 ⚡️Please mention @remotejobshg when you apply for this job

Full Stack DeFi Web Developer Full-time/Company: Re7 Capital 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. Responsibilities: - Develop and maintain responsive, user-friendly front-end interfaces using React, Next.js, Vue or similar frameworks. 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. - Support wallet integrations including MetaMask, Argent X, and Braavos. - Design and implement scalable back-end services and APIs using Node.js, Express, and related technologies. - Collaborate with blockchain engineers to interact with smart contracts and on-chain data. - Implement best practices for security, including wallet connectivity, transaction handling, and protection of user data. - Deploy and maintain applications on AWS (EC2, Elastic Beanstalk, S3, CloudFront), with a focus on scalability, logging, and monitoring. - Set up and manage CI/CD pipelines using GitHub Actions or similar tools to automate testing and deployment workflows. - Deploy applications to decentralized hosting environments (e.g., IPFS, Fleek) as well as cloud-based infrastructure. - Ensure performance optimization through CloudFront caching, invalidation strategies, and SSL/TLS management. - Contribute to Whisk infrastructure and security, ensuring resilient and secure production deployments. - Work closely with designers, PMs, and cross-functional teams to define and deliver new DeFi features and enhancements. - Implement and maintain interactive UI elements and animations using modern HTML/CSS (including transitions, keyframes, and responsive styling) within PHP-based web applications. Requirements: - Proficiency in JavaScript/TypeScript and PHP. 5+ years of experience in web development, including 3+ years in dApp development. - Hands-on experience integrating and interacting with both EVM and Non-EVM smart contracts. - Familiarity with ConnectKit, wagmi, and Viem libraries for modern wallet connection flows. - Experience deploying web applications on AWS using services like Elastic Beanstalk, EC2, and S3, with understanding of environment config, auto-scaling, and CloudWatch logging. - Proficient in setting up CI/CD pipelines using GitHub Actions (or similar tools), including artifact packaging and automated deployment. - Working knowledge of CloudFront, CDN behavior, cache invalidation, and AWS Certificate Manager. - Familiarity with IAM roles, security groups, VPC setup, and cloud infrastructure security best practices. - Experience with front-end frameworks (React, Next.js, Vue, etc.) - Comfortable working in Linux environments and using Git for version control. - Understanding of DeFi concepts and major protocols (e.g., Uniswap, Aave, Curve). - Awareness of and ability to support Whisk infrastructure and security requirements. - 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. Benefits: - A dynamic, collaborative, and highly technical work environment. - Opportunities for professional growth in a rapidly evolving industry. - Remote-first setup with regular opportunities to meet the team in person. - Competitive compensation package. Apply: 👈 ⚡️Please mention @remotejobshg when you apply for this job

Sr. Token Associate Full-time/Company: Delphi Digital Delphi Consulting is a research-driven firm dedicated to advancing the understanding and development of the growing digital asset market. Our goal is to continue driving the crypto asset space forward by investing both financial and intellectual capital into projects, participating actively to help shape the ecosystems we believe in. We have multiple arms, including Venture, Labs, Research, and Consulting, each contributing uniquely to our mission. Job Description We are seeking a highly skilled Associate to join our Token Advisory team. The successful candidate will collaborate with web3 companies to design and implement robust tokenomic frameworks that drive ecosystem growth and sustainability. This role involves producing comprehensive reports and whitepapers that articulate the core principles, strategies, and mechanisms of token economies. The Senior Token Analyst will also develop valuation models, governance frameworks, and other critical elements to ensure the long-term success of our clients’ projects. Responsibilities - Conduct comprehensive ecosystem analyses, creating detailed reports covering all material aspects of the ecosystem - Develop and refine litepapers outlining the core principles of proposed cryptoeconomic frameworks - Create Excel-based token valuation models to capture and analyze financial and tokenized systems, testing system resilience across various macro environments - Design and refine token economic systems, including incentive mechanisms, liquidity provisioning, and emissions schedules - Develop governance frameworks, covering on-chain and off-chain governance, community involvement, and participation methods - Parameterize variables and refine governance structures post-launch, addressing questions and refining project literature - Support the development of whitepapers, providing unlimited iterations until they meet the standards for public presentation - Actively research and stay at the forefront of emergent tokenomic models and trends in the web3 space Basic Qualifications - 3+ years of experience developing statistical, complex system, or valuation models - Extensive experience and knowledge in Web3, including smart contracts, DAOs, tokens, blockchains, and cryptocurrency - Extensive experience with tokens, including creation, minting, yield farming, issuing, burning, and staking - Working knowledge of common financial models including modern portfolio theory, generalized hyperbolic distributions and their subclasses, bonding curves, etc. - Clear, concise written and verbal communication skills, with a track record of influencing technical and non-technical staff Familiarity with common statistical tools such as Mathematica, Wolfram Alpha, and/or Excel - Degree in economics, computer science, math, or another quantitative discipline, or comparable experience - A motivated and driven self-starter Preferred Qualifications - Advanced degree (Master’s or PhD) in a relevant field - Prior experience in a leadership or senior analyst role within a Web3 or blockchain-focused organization - Demonstrated success in developing and implementing tokenomic strategies for large-scale projects - Proficiency in additional programming languages and statistical software - Strong understanding of regulatory considerations and compliance in the blockchain space Compensation and Benefits - Competitive salary with performance-based bonuses - Comprehensive health, dental, and vision insurance - Flexible working hours and remote work options - Opportunities for professional growth and development - Access to industry conferences and networking events - Collaborative and innovative work environment Apply: 👈 ⚡️Please mention @remotejobshg when you apply for this job

Senior Full Stack Engineer Full-time/Company: Grove Labs Grove Lab’s (a Steakhouse Financial company) mission is to build the open source credit and liquidity rails that let anyone, anywhere move, save, and lend value at internet speed. In collaboration with the Sky Ecosystem, we build transparent, efficient, and accessible financial primitives to power the next generation of capital markets on public blockchains. About the Role As a Senior Full Stack Engineer at Grove Labs, you will have the opportunity to lead the development of the next generation of onchain DeFi experiences. You’ll be in charge of shipping a suite of products that can scale to millions of users on top of infrastructure that is safely and efficiently processing transactions worth billions in underlying value. You will join a small but ambitious team with a wide range of responsibilities who are working to solve some of DeFi and TradFi’s most challenging problems.  What We’re Looking For: - Bachelor’s or above in Computer Science, Engineering, or a related technical field. - 5+ years of software engineering experience with a strong background in TypeScript, React, NextJS, Tailwind, and TanStack Query (e.g. T3 stack) as well as Python and SQL. - Minimum of 2+ years of experience working in developing decentralized applications, ideally with another - DeFi Protocol with a large user base. Ideally strong familiarity with web3 programming and using EVM-based tooling like, Foundry, Tenderly, etc. - Expertise in Node.js, Python, Go, or similar on the backend, with a proven track record of building scalable REST or GraphQL APIs. - Experience deploying applications across multiple regions using cloud platforms like AWS, Google Cloud. - Familiarity with cloud-native architecture, VPC networking, telemetry and monitoring. Proficiency with containerization (Docker/Kubernetes), and CI/CD pipelines (Argo CD). - Basic to intermediate familiarity with smart contracts, Ethereum, EVM-based chains, or other relevant blockchain technologies. - Proven expertise in relational database management using PostgreSQL, including designing robust data schemas, optimizing SQL queries, and constructing scalable data pipelines. - Knowledge of secure coding practices, focused on implementing robust encryption, authentication, and authorization protocols (e.g., OAuth2, JWT). - Practical experience with various DeFi protocols (e.g., lending, derivatives, AMMs, stablecoins) and an ability to design and implement complex financial logic on-chain. - Knowledge of tokenization platforms, and relevant industry standards (e.g., ERC-20, ERC-721, ERC-1155). - Excellent technical and non-technical communication skills, verbal and written. - Strong emphasis on understanding the “why” behind requirements and commitment defining the “minimum scope”. What We Offer - Opportunities to be ambitious, grow, and push the frontier of global digital finance. - Competitive compensation including salary, future token rights, and equity. - True impact at scale - we have partnered with some of the world’s largest financial institutions to bring real world on-chain. - Work within a remote and highly collaborative team consisting of diverse experts with the opportunity to travel to team events and conferences. - Regular opportunities for skill development, leadership roles, conference participation, and knowledge sharing in a supportive, fast-paced environment. - An environment where we work hard and have fun doing so! Apply: 👇 [email protected] ⚡️Please mention @remotejobshg when you apply for this job

Junior Trader Full-time/Company: Nascent The Opportunity We’re expanding our elite trading team of competitive individuals who thrive in crypto markets. As a Junior Trader, you’ll learn from seasoned professionals—delving into the fundamentals of crypto trading, understanding crypto markets, analyzing market data, and executing trades in a fast-paced environment. We welcome applicants from any educational background who are fast learners, deeply curious about crypto markets, and possess a strong competitive drive. This role is based in our office in George Town, Cayman Islands. We are happy to support relocation and are ideally looking for individuals to begin with us no later than October 1, 2025. In this role, you’ll get to: - Master the core principles of trading—from strategy development to seamless execution. - Strengthen your expertise in crypto markets through proactive monitoring and in-depth analysis. - Investigate and evaluate emerging opportunities to identify new market insights. - Refine your skills in interpreting crypto market data for strategic decision-making. About You: - You are both fascinated by and enthusiastic about crypto markets - You are a fast thinker & learner and can absorb a wide quantity of information across a variety of disciplines and subject matter - You are a team player, highly adaptable & willing to help others get the win! - You are committed to working when the work needs to get done (untraditional & surprise hours) - You are hyper competitive. Beyond wanting to win… you need to win - You are excited to be a part of the action, in person in our stunning Cayman-based office - Our interview process will include a game-based aptitude assessment, followed by an AI-guided video interview, prior to interviewing with our people team and the hiring team. Our Team & Culture At Nascent, we are an interdisciplinary team of investors, builders and creators, capable of achieving more together than we can as individuals. We offer the opportunity to contribute to building the future global economic system with a world-class team and culture that pairs the freedom to explore, experiment, and play, with a competitive drive to win. We invest in our people by providing the autonomy to build, coupled with accountability and honest feedback to help learn, grow, perform and win. Principles That Drive Our Team & Work - Build for the long term - Align incentives - Be nimble - Compete to win - Explore, experiment, play - Always be building - Give and embrace real feedback What We Offer Competitive base compensation with opportunity for performance bonus We are an equal opportunity employer and celebrate diversity and differences of perspectives. We do not discriminate on the basis of any status, inclusive of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. Apply: 👈 ⚡️Please mention @remotejobshg when you apply for this job

QA Automation Engineer (TypeScript) Full-time/Company: Serokell We are looking for a QA Automation Engineer to join a team of fierce and fun Serokellers and help ensure the stability, performance, and reliability of a blockchain-based solution. Responsibilities: - Support all QA activities leading up to the solution launch. - Ensure functional correctness, protocol interoperability, and regulatory compliance. - Provide post-launch QA support to rapidly address critical defects during the stabilization phase. - Author and maintain manual and automated. - Perform functional, non-functional, unit, API, system, and integration testing. - Collaborate with DevOps to configure and maintain test environments and CI/CD pipelines. - Log, track, and re-test defects using the agreed issue-tracking system. - Participate in release readiness reviews and sign-off processes. Requirements - 3+ years of QA experience in blockchain/fintech. - Strong TypeScript testing experience. - Hands-on experience with smart contract and DApp QA. - Hands-on experience with CLI, API, and SDK testing. - Proven experience in API/UI/CLI automation. - Familiarity with privacy-preserving protocols. - Web3 QA experience. - It will be an advantage if you have: - Expertise in performance, load, and security testing. - Knowledge of Rust is a significant plus. What We Offer Competitive salary. Work on cutting-edge developments as part of a team of like-minded people. Participation in the leading world conferences. International teams and multicultural environment. Fully remote work and flexible working hours. Possibility to take days off at any time you need Investment in your professional and career growth, which will correspond to wage growth. Mentoring and training. Opportunity to contribute to one of the functional programming industry’s leading blogs. Therapy sessions to support your well-being. Apply: 👇 [email protected] ⚡️Please mention @remotejobshg when you apply for this job

Developer Relations Engineer Full-time/Company: Arbitrum Foundation The Arbitrum Foundation is dedicated to scaling Ethereum through cutting-edge Layer 2 solutions. Our flagship product, Arbitrum One, an Optimistic Rollup, enables faster, more affordable transactions while maintaining Ethereum’s security and decentralization. We empower developers to build decentralized applications (dApps) that are both scalable and secure, using Arbitrum chains, which offer flexibility in performance and cost.  Your Role We are looking for an enthusiastic and skilled Developer Relations Engineer to become a key member of our team. As part of the Engineering team, you will be instrumental in driving the adoption of our Layer 2 solutions by contributing to the ecosystem with workshops, technical contents and building meaningful relationships with developers. At the same time you will be supporting the foundation departments when it comes down to their technical needs. If you stay up-to-date with the latest developments in blockchain technology, particularly in the Ethereum ecosystem and you have a genuine passion for collaborating with developers, we would love to connect with you. Your Responsibilities - Developer Engagement: Build and maintain strong relationships with developers, both within and outside the Arbitrum community. Act as a key point of contact for technical inquiries and support. - Advocacy and Community building: Serve as a passionate advocate for Arbitrum by developing and executing strategies to grow and nurture a vibrant developer community around Arbitrum. Organise meetups, webinars, workshops, and other events to facilitate knowledge sharing and collaboration. - Contributing: Create and maintain technical documentation, tutorials, and contribute to the open source ecosystem to help developers integrate with Arbitrum seamlessly. Deliver educational content through various channels. - Feedback Loop: Gather feedback from developers and relay it to our product and engineering teams. Advocate for developers’ needs and priorities within the organisation. - Collaboration: Collaborate closely with the internal cross-functional teams, including marketing, product management, and engineering, to align developer outreach with our strategic goals. - Metrics and Reporting: Track and analyse developer engagement metrics to measure the impact of developer relations efforts. Use data-driven insights to refine strategies. - Assess leads (e.g. grant proposals, product requirement documents, etc) from a technical standpoint, focusing on the technical team capabilities, architecture and source code and the timeline credibility. - Contributing back to the ecosystem via open source contributions or the production of other educational materials What You’ll Need: You are fluent in one or more general-purpose languages (e.g. Typescript, Python, Go, Rust, Java, etc) Fundamentals of Solidity Deep understanding of blockchain technology and EVM solutions. Strong English communication and presentation skills, with the ability to convey complex technical concepts to diverse audiences. Self-motivated, proactive, and able to work independently. Excellent problem-solving and troubleshooting skills. Bachelor in computer science or equivalent work experience Nice to have: - Prior experience in developer relations, developer advocacy, or a related role in the tech industry, within the blockchain or cryptocurrency space. - Demonstrated experience in community building and engagement. - Prior commercial experience with Solidity - Exposure to Rust - Open-source contributor on the EVM space - You speak another language (e.g. Spanish, Hindi, Chinese, Korean, Japanese) Apply: 👈 ⚡️Please mention @remotejobshg when you apply for this job

Senior Rust Engineer (Nescience) Full-time/Company: Vac Logos is a movement supporting the development of the decentralised web. Logos technologies lay the foundations for a freer internet upon which communities can evolve into network states. Each protocol in the Logos stack seeks to empower its users while upholding civil liberties and fundamental freedoms. About Vac Vac builds public good protocols for the decentralized web. We do applied research based on which we build protocols, libraries and publications. This role is within the the Vac Incubator Project “Nescience”, which is developing a state separation architecture with selective privacy. The role In this role, you will be responsible for maintaining our Rust code base, transforming research prototypes into production and collaborating with researchers, prototyping ideas, measuring performance, and conducting code reviews, and shaping engineering culture. Your responsibilities will include planning, implementing, and shipping end-to-end functionality in monthly release sprints. As well as profiling bottlenecks, hardening cryptographic components, and writing property-based tests. The ideal candidate should be comfortable with modern cryptography, familiar with zero-knowledge virtual machines (zkVMs) and experienced with blockchain or other peer-to-peer systems, and motivated by decentralisation and privacy. Key responsibilities Write and maintain Rust code base. Develop new solutions based on research output. If necessary, participate in research. You ideally will have 4-5 Years of Rust experience. Experience writing asynchronous code in Rust using Tokio. Solid understanding of cryptography. Understanding, how zkVM’s work. Experience in, and passion for, blockchain technology. A strong alignment to our principles. Bonus points if Experience writing code using libp2p. Worked with RISC0. Participated in building blockchain projects. [Don’t worry if you don’t meet all of these criteria, we’d still love to hear from you anyway if you think you’d be a great fit for this role. Just explain to us why in your cover letter]. Hiring process The hiring process for this role will be: Interview with our POps team Interview with Nescience team lead Pair programming task with the Nescience team Interview with Vac team lead The steps may change along the way if we see it makes sense to adapt the interview stages, so please consider the above as a guideline. Compensation The expected compensation range for this role is negotiable, dependent on how we assess your skills and experience throughout our interview process. We are happy to pay in any mix of fiat/crypto. Apply: 👈 ⚡️Please mention @remotejobshg when you apply for this job