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<p>We're looking for a frontend developer to help build a cross-chain decentralized exchange (DEX) UI. The ideal person has 3–5+ years of experience with React, Next.js, and TypeScript, and has worked on Web3 apps before. They should be comfortable integrating wallets like MetaMask, WalletConnect, and Coinbase using libraries like Wagmi, RainbowKit, or Web3Modal. Strong knowledge of Ethers.js is key for handling Ethereum and EVM-based chains. </p><p>Bonus points if they’ve worked with Substrate/Polkadot.js, since the DEX backend is built on that stack. They should understand how wallet connections, signatures, RPCs, and chain switching work, and ideally be able to troubleshoot cross-chain quirks. Experience with decentralized protocols and privacy-focused coins like Monero or Bitcoin is a plus. </p><p>We want someone who writes clean, maintainable code, is security-conscious (especially around wallet/key handling), and can collaborate with backend and design teams. Experience with Tailwind or similar CSS frameworks is great. It’s a plus if they’ve built or contributed to crypto DEXs, trading UIs, or DeFi dashboards.</p><p>Reach out and we’ll brief you on the stack, scope, and product vision.</p>

Web3 Frontend Engineer - React/TypeScript

<p>EoT Labs and flagship project peaq were founded under the belief that a better trajectory for humanity exists. We’re focused on harnessing the power of modern technology to build a global, borderless, machine economy that works for all humans on earth – the 100%, not just the 1%.</p><p>Today, more than 20 industries are already being positively shaped by this next generation of apps built on the peaq network. This is an opportunity to join a team of performance-driven entrepreneurs, engineers, and creatives, on a mission to unlock the Age of Abundance.</p><p><strong>Key Responsibilities:</strong></p><ul><li>Design, develop, and maintain Web3 applications leveraging blockchain technologies.</li><li>Implement smart contracts for NFTs (ERC-721, ERC-1155), ERC-20 tokens, and DeFi protocols.</li><li>Develop and optimize backend services using PHP (Laravel), Node.js, and Python.</li><li>Build and integrate front-end applications using Next.js and React.</li><li>Work with the Polkadot ecosystem, including Substrate-based blockchains.</li><li>Collaborate with DevOps teams to ensure high availability and security of blockchain applications.</li><li>Stay updated with the latest trends in Web3, blockchain security, and smart contract development.</li></ul><p><strong>Qualifications & Requirements:</strong></p><ul><li>5+ years of experience in software development with a focus on Web3.</li><li>Strong knowledge of blockchain fundamentals, smart contracts, and cryptographic principles.</li><li>Proficiency in PHP (Laravel), Node.js, and Python.</li><li>Experience with Next.js for front-end development.</li><li>Expertise in Ethereum standards (ERC-20, ERC-721, ERC-1155) and NFT marketplace development.</li><li>Experience working with Polkadot and Substrate-based blockchains.</li><li>Strong understanding of API integrations, WebSockets, and event-driven architectures.</li><li>Experience with IPFS, decentralized storage, and smart contract security best practices.</li><li>Knowledge of cloud services such as AWS, GCP, or Azure.</li></ul>

Senior Software Engineer (Freelance)

<p>We are seeking a talented Technical Writer to join our Developer Relations team and play a crucial role in creating clear, concise, and engaging technical documentation for Optimism’s products and developer tooling. As a Technical Writer, you will collaborate closely with our engineering, product, and developer support teams to produce high-quality documentation that enables developers to understand and utilize our products effectively.</p>
<h3>What are the role responsibilities?</h3>
<ul>
<li>Produce comprehensive developer documentation, including guides, tutorials, reference material, and release notes.</li>
<li>Research, analyze, and understand complex technical concepts related to blockchain technology and Web3 protocols.</li>
<li>Work closely with product managers, developers, and subject matter experts to gather information and ensure accuracy and completeness of documentation.</li>
<li>Translate technical information into clear and accessible content tailored to various audiences and developer personas.</li>
<li>Assist and coordinate content improvement efforts through devX research interviews, docs bounties, and docs usability testing.</li>
<li>Collaborate with cross-functional teams to support documentation needs related to product launches, hackathons, marketing campaigns, and ecosystem contributions.</li>
</ul>
<h3>What skills do you bring?</h3>
<ul>
<li>Technical writing experience with a focus on developer documentation, software documentation, or technical documentation.</li>
<li>Experience writing about blockchain technology, decentralized applications, smart contracts, and Web3 protocols (e.g., Ethereum, IPFS, Polkadot) or previous contributions to open-source projects or technical communities related to blockchain, cryptocurrency, or Web3.</li>
<li>Proficiency in writing clear, concise, and accurate documentation for developer audiences.</li>
<li>Excellent communication and collaboration skills, with the ability to work independently in a remote environment and effectively in a cross-functional team.</li>
<li>Experience using documentation tools, platforms, and version control systems (e.g., Markdown, Git, Notion, VS Code).</li>
<li>Self-motivated with a passion for learning and a proactive approach to problem-solving.</li>
</ul>


Technical Writer

<p>At Sprinter, we are actively seeking an individual who is profoundly invested in improving the blockchain interoperability space, has experience working with blockchain protocols, and aspires to enrich these domains by merging their functionalities.</p>
<p>Our next-generation interoperability and cross-chain account abstraction stack is built using cutting-edge blockchain and verifiable computation technologies: Optimism Cannon, Halo2, zkVMs. Our interoperability protocol focuses on expanding our Sprinter solution to be trust-minimized through the design and implementation of innovative cross-chain technologies, specifically ZK and Optimistic bridges, targeting full consensus verification of Ethereum, Polkadot, and extensibility to other chains like Bitcoin.</p>
<p>As a Blockchain Golang Backend Engineer (Cross Chain Interoperability Protocol), your primary responsibility will be to architect and implement a variety of extensions to the foundation of the Sprinter interoperability and cross-chain account abstraction protocol and tools utilizing it.</p>
<p>Your expertise will undoubtedly contribute to the sophistication of blockchain interoperability and redefine the boundaries of what's possible within this emerging technological sphere. All work across Sprinter will be open-source, ensuring expansive opportunities for deep contribution and collaborative efforts across various blockchains and ecosystems.</p>
<h3><strong>Responsibilities</strong></h3>
<ul>
<li>Design, develop, and maintain highly performant backend services and APIs using GoLang</li>
<li>Integrate with various Interoperability protocols and networks, wallet providers and Dapps to aggregate cross-chain balances and ensure smooth user interactions</li>
<li>Implement and optimize routing algorithms to find optimal solutions for fulfilment of complex transactions</li>
<li>Proactively improve current solutions and look to ensure the security, scalability and performance of backend services</li>
<li>Contribute to the automation of development processes, including build, deployment, and monitoring.</li>
<li>Write clean, maintainable, and well-documented code</li>
</ul>
<h3><strong>Required Skills</strong></h3>
<ul>
<li>2+ years working with blockchain technologies as a developer and at least 3+ years in total working as a Software Engineer</li>
<li>Excellent proficiency in Golang with a strong background in developing high-performance backend services and APIs</li>
<li>Extensive knowledge and practical experience with the EVM</li>
<li>Experience with building distributed systems and understanding of system design concepts</li>
<li>Excellent debugging skills with attention to detail.</li>
<li>Problem-solving and hacking mindset, being naturally curious to research, explore, and tinker with complicated and unfamiliar codebases</li>
<li>Be able to proactively dive into the novel territory and share knowledge on what you've learned</li>
<li>Willingness to learn across multiple technology stacks</li>
</ul>
<h3><strong>Bonus Skills</strong></h3>
<ul>
<li>Experience working with interoperability projects or protocols</li>
<li>Experience building distributed systems. Expertise in identifying and analyzing performance bottlenecks</li>
<li>Experience with cloud environments like AWS</li>
<li>Experience with containerization (e.g Docker, Kubernetes)</li>
<li>Expertise in SQL and/or other database storage engines</li>
<li>Experience building distributed systems</li>
</ul>
<p>We strongly encourage you to apply even if you don’t fit all the requirements. You don’t have to match all the listed requirements exactly to be considered for this role.</p>
<h3><strong>Hiring Steps</strong></h3>
<p>Candidates for this position can expect the hiring process at Chainsafe to follow the order below. Please keep in mind that candidates can be declined from the position at any stage of the process.</p>
<ul>
<li>Qualified candidates will be invited to schedule a 30-45 minute screening call with one of our tech recruiters</li>
<li>Next, candidates will be invited to schedule a 60-minute interview with the hiring team</li>
<li>Then, candidates will be invited to schedule a 60-minute Technical Interview</li>
<li>Last, Candidates will be asked to complete a technical task that takes under 4 hours, but we provide up to 1 week to complete.</li>
</ul>
<h3><strong>We welcome your fresh perspectives and ideas</strong></h3>
<p>At ChainSafe, diversity and inclusion are more than a statement; equality and accessibility are guiding principles embedded in who we are - and why we do what we do. We recognize the benefits of a diverse team and aspire to embed respect for all people into our culture, values, and day-to-day practices. We encourage women, LGBTQIA+ people, people of color, and members of any other group underrepresented in the blockchain space (or tech in general) to apply.</p>
<p>ChainSafe is a remote-first company with an international team. We offer opportunities for personal and professional learning and growth, value autonomy and responsibility, and have a results-driven environment, flexible work hours and time-off policy, as well as competitive salary.</p>
<p>Salary will be determined through the interview process after a review of experience, knowledge, skills, abilities, equity, and location, as well as alignment with market data.</p>
<p>To apply for this position, please fill out the linked application form and please attach your CV/resume as well as a link to your Github/Gitlab profile or some other software project you have contributed to.</p>

Golang Backend Engineer - Sprinter Account Abstraction Protocol

<p><a href="http://chainsafe.io/" rel="noopener noreferrer nofollow ugc" target="_blank">ChainSafe</a> is a leading blockchain research and development firm specializing in infrastructure solutions for the decentralized web. Alongside its contributions to significant ecosystems such as Ethereum, Polkadot, Filecoin, and more, ChainSafe creates solutions for developers and teams across the web3 space utilizing our expertise in <a href="http://gaming.chainsafe.io/" rel="noopener noreferrer nofollow ugc" target="_blank">gaming</a>, <a href="https://buildwithsygma.com/" rel="noopener noreferrer nofollow ugc" target="_blank">bridging</a>, NFTs, and <a href="http://storage.chainsafe.io/" rel="noopener noreferrer nofollow ugc" target="_blank">decentralized storage.</a> As part of the mission to build innovative products for users and better tooling for developers, ChainSafe embodies an open-source and community-oriented ethos.</p>
<p>To learn more about ChainSafe, look at our <a href="https://discord.com/invite/xSAwrnCWcg" rel="noopener noreferrer nofollow ugc" target="_blank">Discord</a>, <a href="https://github.com/chainsafe" rel="noopener noreferrer nofollow ugc" target="_blank">GitHub</a>, and <a href="https://chainsafe.io/" rel="noopener noreferrer nofollow ugc" target="_blank">website</a>.</p>
<p><strong>Here’s what you need to know before reading on:</strong></p>
<ul>
<li>Our progressive tech stack includes Go, Rust, and TypeScript</li>
<li>We spearhead ecosystem projects like <a href="https://github.com/ChainSafe/lodestar" rel="noopener noreferrer nofollow ugc" target="_blank">Lodestar</a>, <a href="https://github.com/ChainSafe/web3.js" rel="noopener noreferrer nofollow ugc" target="_blank">Web3.js</a>, <a href="https://github.com/ChainSafe/forest" rel="noopener noreferrer nofollow ugc" target="_blank">Forest</a>, and <a href="https://github.com/ChainSafe/gossamer" rel="noopener noreferrer nofollow ugc" target="_blank">Gossamer</a></li>
<li>We are global, remote-friendly, and open to contractors</li>
</ul>
<p>At ChainSafe, you’ll be part of a team that believes in the community's vital importance and contributes to advancing humanity with open-source and decentralized technology.</p>
<h3>About the Role</h3>
<p>As a Blockchain Operator (BlockOps) member with the Lodestar team, you will have the opportunity to make impactful contributions providing direct support to the Lodestar consensus client team and the Ethereum protocol ecosystem as a whole. You’ll improve collaboration and productivity by helping our team of core developers automate infrastructure, workflows and experiments by collaborating with other infrastructure professionals within ChainSafe and the larger collective of developers and node operators in the Ethereum ecosystem.</p>
<p>We’re seeking an individual excited with helping Ethereum scale to become the most effective, impactful and valuable blockchain for global settlements. This position will work directly with consensus layer clients like Lodestar and execution clients which are critical to the success of Ethereum. This would include developing, using and maintaining innovative tooling/infrastructure to standup ephemeral multi-client devnets, staking node operations, metrics collection and block/client analysis. You will be expected to build custom tooling to solve problems, communicate these solutions to the team and the community as a whole. You’ll be joining a team of international specialists to ensure the success of the client software and the Ethereum protocol ecosystem.</p>
<h3>Responsibilities</h3>
<ul>
<li>Orchestrate, experiment and architect blockchain node infrastructure such as multi-client devnets, test limitations with automated tooling such as fuzzers and specification conformance testing</li>
<li>Learning about the Ethereum protocol, its roadmap, and working with external community contributors to achieve milestones</li>
<li>Familiarizing and operating Ethereum consensus and execution layer clients in various advanced configurations within public and private testnets</li>
<li>Implement and maintain CI/CD pipelines to support Lodestar during development and release cycles</li>
<li>Building and enhancing existing monitoring and logging infrastructure</li>
<li>Analyze and diagnose block/client metrics, logging and monitoring to improve the Lodestar client software</li>
<li>Conduct research experiments and propose solutions to continuously improve the resiliency and continuity of Lodestar and our deployed infrastructure</li>
<li>Develop and implement custom tooling as necessary to solve complex problems</li>
<li>Support operating existing infrastructure as necessary, including public nodes, staking validators and development testnets</li>
</ul>
<h3>Requirements</h3>
<ul>
<li>At least three years of prior DevOps, Infrastructure, Site Reliability or Cloud Engineer experience</li>
<li>Strong experience working with configuration management tools such as Ansible and Terraform</li>
<li>Experience working with Docker containers and using them in production systems</li>
<li>Languages: Any modern programming language (Go, Rust, Python, TypeScript). You might need to write some code or scripts for custom tooling</li>
<li>Experience working with some of the major public clouds. e.g. AWS, Azure, DigitalOcean, OVH, Hetzner</li>
<li>Competent with the “basics” (e.g Linux usage and computer networking)</li>
<li>Collaborative, communicative, and confident in their abilities to work well with all team members at all seniority and skill levels</li>
<li>Deployed and managed monitoring and alerting systems based on time-series metrics E.g. Prometheus/InfluxDB, Grafana, Alertmanager, etc.</li>
<li>Self-motivated individual with enthusiasm for learning and building things with a results-driven attitude ⭐</li>
</ul>
<h3>Bonus Points</h3>
<ul>
<li>Understanding of container orchestration platforms like Kubernetes</li>
<li>Understanding deeper level metric query languages like PromQL</li>
<li>Software engineering/development background</li>
<li>Knowledge of blockchain technology, especially Ethereum</li>
<li>Running Ethereum client software</li>
<li>Virtualization management platforms like Proxmox or other hypervisor solutions</li>
<li>Open source contributions</li>
</ul>
<p>If you feel like you’re the perfect fit for the role, please apply even if you don’t match all the requirements.</p>
<h3><strong>Hiring Steps</strong></h3>
<ul>
<li>Candidates will be invited to a 60-minute Technical interview with an Infrastructure member.</li>
<li>Lastly, candidates will be invited to a 60-90 minute Technical and Values-based interview with Lodestar team members.</li>
</ul>
<h3><strong>Why Join ChainSafe</strong></h3>
<p>Founded by developers for developers, ChainSafe is a remote-first company with an international team. We continue to provide opportunities for personal and professional growth, value autonomy and responsibility, have a results-driven environment, and offer flexible work hours.</p>
<p>We care deeply about <a href="https://chainsafe.io/about" rel="noopener noreferrer nofollow ugc" target="_blank">our values</a> and look for these attributes in every new team member. In addition, we recognize the benefits of cultivating a diverse team and aspire to embed respect for all people into our culture. We encourage women, the LGBTQIA+ community, people of color, and members of any other group underrepresented in the blockchain space (or tech in general) to apply.</p>
<h3><strong>How to Apply</strong></h3>
<p>Please fill out the Greenhouse application form below and ensure that you attach your resume and link your Github/Gitlab profile or any software project you have contributed to (if applicable).</p>


Lodestar/Ethereum BlockOps Engineer

Remote Web3 Polkadot jobs and other crypto companies

Browse many opportunities Remote Web3 Polkadot Jobs at. Apply now. updated June 2026!

Job Title	Company Name	Salary	Location	Tags
V Web3 Frontend Engineer - React/TypeScript	VostoEmisio	5k/month	Remote	DEXDeveloperWeb3Remote
Senior Software Engineer (Freelance)	EoT Labs		Remote	RemoteWeb3DeveloperFreelance
Technical Writer	OP Labs			RemoteWeb3MarketingResearch
Golang Backend Engineer - Sprinter Account Abstraction Protocol	ChainSafe Systems	30-45/hour		RemoteWeb3ResearchDeveloper
Lodestar/Ethereum BlockOps Engineer	ChainSafe Systems	60-90/hour		RemoteWeb3ResearchDeveloper

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Web3 Frontend Engineer - React/TypeScript

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