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<p>We are launching a major Indigenous-led blockchain initiative aimed at advancing economic empowerment and digital inclusion. Our platform will utilize a custom token architecture and integrate community tools including NFTs and digital marketplaces.</p><p>We are seeking a skilled <strong>Solidity developer</strong> to help us:</p><ul><li>Build and deploy ERC-20 token contracts using OpenZeppelin</li><li>Implement features such as:</li><li class="ql-indent-1">Minting</li><li class="ql-indent-1">Admin controls (pause, mint, burn, etc.)</li><li class="ql-indent-1">Secure token allocations (vesting logic)</li><li>Deploy contracts to Ethereum mainnet or an L2 (e.g., Polygon, Base)</li><li>Assist in configuring secure multisig wallets (e.g., Gnosis Safe)</li></ul><p><strong>Must Have:</strong></p><ul><li>Solidity</li><li>Experience with OpenZeppelin ERC-20 contracts</li><li>Familiarity with Remix, Hardhat, or Foundry</li><li>GitHub or portfolio of previous smart contract work</li></ul><p><strong>Bonus:</strong></p><ul><li>Frontend skills (React + Ethers.js or Web3.js)</li><li>Familiarity with DAO/NFT/token governance patterns</li></ul><p>We are funded and ready to move quickly — <strong>hiring this week</strong>.</p><p>Alignment with Indigenous values and social impact work is a strong asset.</p>

Blockchain Dev for Canadian Indigenous Project

<p>Our crypto wallet is used by millions of people and provides a single, convenient solution for managing all your accounts and tokens across Solana, Ethereum, and Polygon. As a frontend engineer at Phantom you’ll be doing everything from creating delightful user experiences, contributing to cross-platform client infrastructure, and crafting web3 developer SDKs. Join us on our mission to make the digital economy safe and easy to use for everyone.</p>
<p>This role is fully remote; however, we’re only open to candidates based in US and EU time zones. Currently, Phantom cannot support employees from the following countries and continents: Russia, Pakistan, Ukraine, Asia, Oceania, and Africa.</p>
<h3>Responsibilities</h3>
<ul>
<li><strong>Feature development:</strong> You will be owning features on our web platforms – currently the <a href="https://phantom.app/download" rel="noopener noreferrer nofollow ugc" target="_blank">Phantom Extension</a> and our website.</li>
<li><strong>New initiatives and products:</strong> You will be leading initiatives to add support for other blockchains to Phantom, and to launch new complementary products or infrastructure.</li>
<li><strong>Interfacing with users:</strong> You will be interfacing directly with end-users and developers building on Phantom – supporting them and collecting feedback to inform the direction of the product.</li>
<li><strong>Team building:</strong> You will be working with the team to create and foster a culture of raising the bar with each new hire.</li>
</ul>
<h3>Qualifications</h3>
<ul>
<li>Bachelors degree in Computer Science or related technical field or equivalent practical experience</li>
<li>5+ years full-time software engineering experience with some of the following technologies:
<ul>
<li>React / Typescript / styled-components / React-Query</li>
<li>Solana web3.js / ethers.js</li>
</ul>
</li>
<li>Demonstrated interest in open and community-driven platforms</li>
<li><em>Nice-To-Have</em>: experience in a blockchain based project</li>
<li>English language proficiency</li>
</ul>
<h3>Why Work with Us</h3>
<h3>Opportunity</h3>
<p>We are a team of experienced builders with a ton of traction in a big and growing market – our users are so passionate they were hacking their way into our private beta. Only months after launching we've acquired millions of users, and are adding hundreds of thousands every week. We are by far the leading wallet on Solana, and have expanded to Ethereum and Polygon. </p>
<p>On top of that, there has never been a better time to work in crypto and on wallets in particular.</p>
<ul>
<li><strong>Wallets play a pivotal role:</strong> Wallets are responsible for on-boarding new users into crypto, and can make or break the user experience.</li>
<li><strong>We are moving to a multi-chain world:</strong> New blockchains and scaling solutions are coming online and gaining traction, but are lacking decent wallets and bridges.</li>
<li><strong>DeFi & NFTs are exploding :</strong> Interest in DeFi and NFTs has exploded, yet they are still an after-thought in existing wallets.</li>
</ul>
<h3>Benefits</h3>
<ul>
<li>Competitive salary and equity.</li>
<li>Comprehensive insurance (medical/dental/vision) — 100% covered.</li>
<li>Stipend for your ideal remote / WFH set-up: laptop, headphones, and any other work gear you may need.</li>
<li>Flexible hours and a long-standing, supportive remote environment.</li>
<li>Monthly co-working space and mobile phone expense.</li>
<li>Unlimited vacation: Take time when you need it (and we really mean it).</li>
<li>401(k) retirement plan (although we are not matching at this time)</li>
<li>Wellness benefit</li>
<li>Daily lunch benefit</li>
</ul>
<p>The target base salary for this role will range between $180,000 to $220,000 with the addition of equity and benefits. This is determined by a few factors including your skillset, prior relevant experience, quality of interviews and market factors (such as location) at the point in time of offer.</p>

Senior Software Engineer, Frontend

ETHGlobal is growing the most valuable developer community in web3. We're a small team and we’re looking for passionate engineers to join us. We work closely with organizations like the Ethereum Foundation, IPFS, Uniswap, Polygon, Hack the North and more.We’re building products and protocols for developers to help them learn smart contract development, creating new infrastructure, and managing payments at scale.As the usage of blockchain technology grows, the world is going to need more talented engineers, designers, and product leaders to build the future that blockchain technology is promising. We work with exactly these kinds of people every single day through the products we organize for our community. By focusing on this community, we think we can accelerate the transition to enabling more open, decentralized, and fundamentally ground-breaking systems.If you’re curious about web3 &amp; crypto you can have a major impact on how fellow developers learn and grow in this industry! You would be a successful candidate if you are self-motivated, have a sense of urgency, like getting things done, and are committed to learning more about engineering and the exciting world of web3.<h3>What you’ll do</h3><ul><ul><li>Work on the Engineering team, collaborating closely with Partnerships, Marketing, and Leadership teams to build new ETHGlobal products and solve ambiguous problems.</li><li>Plan, lead and implement small to medium projects independently, and large projects collaboratively, working across the stack.</li><li>Build member facing experiences on <a href="http://ethglobal.com" rel="noopener noreferrer nofollow ugc" target="_blank">ethglobal.com</a> and internal tools that powers <a href="https://ethglobal.com/events" rel="noopener noreferrer nofollow ugc" target="_blank">Events</a> and grows our community of 50,000+ developers.</li><li>Build new learning experiences on <a href="https://ethglobal.com/guides" rel="noopener noreferrer nofollow ugc" target="_blank">Guides</a> – which helps anyone start learning development for web3.</li><li>Building experiences around integrating web3 wallets and protocols</li><li>Build high quality, functional UI elements, with an eye towards design detail, performance and accessibility.</li><li>Contribute to infrastructure to test, deploy and run systems that power ETHGlobal products.</li><li>Share knowledge with and mentor teammates, continually raising the technical bar of the team.</li><li>Join a fast-paced, early-stage organization, where you can have a direct impact on the organization’s objectives and ship things to prod which are used by people from 80+ countries</li></ul></ul><h3>Who we’re looking for</h3><ul><ul><li>Have 3-5+ years of experience shipping high quality products.</li><li>Experience working across the backend and frontend stack.</li><li>Experience working with TypeScript, Node, Express, Apollo, GraphQL, and relational databases (MySQL / Postgres) on the backend.</li><li>Experience working with TypeScript, React, Tailwind and GraphQL on the frontend.</li><li>Familiarity with Vercel and Google Cloud Compute.</li><li>Familiarity with Prisma and typed GraphQL tools such as TypeGraphQL, Pothos, or Nexus is a plus.</li><li>You reduce complex problems into simple solutions that scale well.</li><li>You care about crafting high-quality product experiences &amp; pay attention to design &amp; detail.</li><li>You have excellent communication skills on both technical and non-technical issues.</li><li>You're excited about difficult challenges and getting things done from start to finish.</li><li>You’re a self-motivated learner – take initiative to learn the unknown &amp; share new understanding for yourself and your peers.</li><li>You believe shipped is better than perfect – ship early and often.</li><li>You thrive on feedback from your peers and are constantly looking to improve.</li></ul></ul><h3>You’re interested in</h3><ul><ul><li>A full-time position</li><li>A fully remote work environment with lots of synchronous communication</li><li>All things at the cutting edge of web3</li><li>Travelling to international locations for physical weekend hackathons (e.g., Mexico City, Bogota, New York City, Amsterdam, or other major cities across the world)</li></ul></ul><h3>Perks &amp; Benefits</h3><ul><ul><li>Competitive salary (option to be paid in cryptocurrency)</li><li>Comprehensive health insurance for you and your dependents (vision, dental, etc.)</li><li>Flexible vacation and remote work policy</li><li>Stipends for home office improvements, meals and additional remote-work benefits</li></ul></ul>At ETHGlobal, we're looking for people with passion, grit, and integrity. You're encouraged to apply even if your experience doesn't precisely match the job description. Your skills and passion will stand out—and set you apart—especially if your career has taken some extraordinary twists and turns.

Full Stack Software Engineer

Canadian Dollar

Canada

<p>Our crypto wallet is used by millions of people and provides a single, convenient solution for managing all your accounts and tokens across Solana, Ethereum, and Polygon. As a frontend engineer at Phantom you’ll be doing everything from creating delightful user experiences, contributing to cross-platform client infrastructure, and crafting web3 developer SDKs. Join us on our mission to make the digital economy safe and easy to use for everyone.</p>
<p>This role is fully remote; however, we’re only open to candidates based in US and EU time zones. Currently, Phantom cannot support employees from the following countries and continents: Russia, Pakistan, Ukraine, Asia, Oceania, and Africa.</p>
<h3>Responsibilities</h3>
<ul>
<li><strong>Feature development:</strong> You will be owning features on our web platforms – currently the <a href="https://phantom.app/download" rel="noopener noreferrer nofollow ugc" target="_blank">Phantom Extension</a> and our website.</li>
<li><strong>New initiatives and products:</strong> You will be leading initiatives to add support for other blockchains to Phantom, and to launch new complementary products or infrastructure.</li>
<li><strong>Interfacing with users:</strong> You will be interfacing directly with end-users and developers building on Phantom – supporting them and collecting feedback to inform the direction of the product.</li>
<li><strong>Team building:</strong> You will be working with the team to create and foster a culture of raising the bar with each new hire.</li>
</ul>
<h3>Qualifications</h3>
<ul>
<li>Bachelors degree in Computer Science or related technical field or equivalent practical experience</li>
<li>5+ years full-time software engineering experience with some of the following technologies:
<ul>
<li>React / Typescript / styled-components / React-Query</li>
<li>Solana web3.js / ethers.js</li>
</ul>
</li>
<li>Demonstrated interest in open and community-driven platforms</li>
<li><em>Nice-To-Have</em>: experience in a blockchain based project</li>
<li>English language proficiency</li>
</ul>
<h3>Why Work with Us</h3>
<h3>Opportunity</h3>
<p>We are a team of experienced builders with a ton of traction in a big and growing market – our users are so passionate they were hacking their way into our private beta. Only months after launching we've acquired millions of users, and are adding hundreds of thousands every week. We are by far the leading wallet on Solana, and have expanded to Ethereum and Polygon. </p>
<p>On top of that, there has never been a better time to work in crypto and on wallets in particular.</p>
<ul>
<li><strong>Wallets play a pivotal role:</strong> Wallets are responsible for on-boarding new users into crypto, and can make or break the user experience.</li>
<li><strong>We are moving to a multi-chain world:</strong> New blockchains and scaling solutions are coming online and gaining traction, but are lacking decent wallets and bridges.</li>
<li><strong>DeFi &amp; NFTs are exploding :</strong> Interest in DeFi and NFTs has exploded, yet they are still an after-thought in existing wallets.</li>
</ul>
<h3>Benefits</h3>
<ul>
<li>Competitive salary and equity.</li>
<li>Comprehensive insurance (medical/dental/vision) — 100% covered.</li>
<li>Stipend for your ideal remote / WFH set-up: laptop, headphones, and any other work gear you may need.</li>
<li>Flexible hours and a long-standing, supportive remote environment.</li>
<li>Monthly co-working space and mobile phone expense.</li>
<li>Unlimited vacation: Take time when you need it (and we really mean it).</li>
<li>401(k) retirement plan (although we are not matching at this time)</li>
<li>Wellness benefit</li>
<li>Daily lunch benefit</li>
</ul>
<p>The target base salary for this role will range between $180,000 to $220,000 with the addition of equity and benefits. This is determined by a few factors including your skillset, prior relevant experience, quality of interviews and market factors (such as location) at the point in time of offer.</p>

We are seeking talented Full-Stack Interns to experience, contribute and grow at a fast-moving Blockchain Startup.<b>About the Company</b>One of the fastest-growing and most trusted companies in blockchain security, CertiK is a true market leader. To date, CertiK has worked with over 3,200 Enterprise clients, secured over $310 billion worth of digital assets, and has detected over 60,000 vulnerabilities in blockchain code. Our clients include leading projects such as Aave, Polygon, Binance Smart Chain, Terra, Yearn, and Chiliz.Investors = Insight Partners, Sequoia, Tiger Global, Coatue Management, Lightspeed, Advent International, SoftBank, Hillhouse Capital, Goldman Sachs, Coinbase Ventures, Binance, Shunwei Capital, IDG Capital, Wing, Legend Star, Danhua Capital and other investors.<h3>Responsibilities</h3><ul><ul><li>Own and develop a feature for one of our various applications and services</li><li>Fast-prototype on the frontend</li><li>Write succinct documentation</li><li>Write unit test scripts and automation testing</li><li>Work with cloud services, such as Snowflake (DB/SQL), kafka, AWS </li></ul></ul><h3>Qualifications</h3><ul><ul><li>Demonstrated knowledge of computer science concepts such as data structures, algorithms, operating systems, databases and networks.</li><li>Fluent in JS/TS, SQL</li><li>Experience with development on React (TypeScript preferred, but JavaScript is fine too)</li><li>Experience with development on NodeJS</li><li>Understanding of Full-stack development (REST API's, Software Development Lifecycle, Front End vs Backend)</li></ul></ul><h3>Preferred Qualification</h3><ul><ul><li>Experience in startup</li><li>Familiarity with <a href="http://Next.js" rel="noopener noreferrer nofollow ugc" target="_blank">Next.js</a>, <a href="http://Nest.js" rel="noopener noreferrer nofollow ugc" target="_blank">Nest.js</a></li><li>Familiarity with GraphQL</li></ul></ul><b>About the Company</b>One of the fastest-growing and most trusted companies in blockchain security, CertiK is a true market leader. To date, CertiK has worked with over 3,200 Enterprise clients, secured over $310 billion worth of digital assets, and has detected over 60,000 vulnerabilities in blockchain code. Our clients include leading projects such as Aave, Polygon, Binance Smart Chain, Terra, Yearn, and Chiliz.Investors = Insight Partners, Sequoia, Tiger Global, Coatue Management, Lightspeed, Advent International, SoftBank, Hillhouse Capital, Goldman Sachs, Coinbase Ventures, Binance, Shunwei Capital, IDG Capital, Wing, Legend Star, Danhua Capital and other investors.<b>Compensation</b>$2000 - $6000/month (fulltime). The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates.#blockchain#startups#hiringCertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all US based full-time employees, along with flexible paid time off and holidays.In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements.<a href="https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf" rel="noopener noreferrer nofollow ugc" target="_blank">https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf</a>All CertiK employees are expected to actively support diversity on their teams, and in the Company.Seniority LevelNot ApplicableIndustryComputer SoftwareEmployment TypeFull-timeJob FunctionsInformation Technology

Full Stack Internship - Matrix

US Dollar

New York

Seattle

San Francisco

Web3 Polygon React jobs and other crypto companies

Browse many opportunities Web3 Polygon React Jobs at. Apply now. updated June 2026!

Job Title	Company Name	Salary	Location	Tags
R Blockchain Dev for Canadian Indigenous Project	Reconciliation tech	30-60/hour	Remote	RemoteWeb3DeveloperNon Tech
Senior Software Engineer, Frontend	Phantom			RemoteWeb3Non TechCommunity
Full Stack Software Engineer	ETHGlobal			RemoteMarketingCommunityFull Time
Senior Software Engineer, Frontend	Phantom			RemoteNon TechCommunityFull Time
Full Stack Internship - Matrix	CertiK			RemoteInternshipSecurityFull Time

Web3 Polygon React Jobs

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Blockchain Dev for Canadian Indigenous Project

Reconciliation tech

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