Senior Web Developer (Contractor) at OpenZeppelin

<div class="content-intro"><h3><strong>About us</strong></h3> <p>OpenZeppelin is the security standard onchain finance is built on. Founded in 2015, our mission is to accelerate the world's transition to an open financial system, built on open standards and secured by rigorous research.</p> <p>Our open-source Contract Libraries have facilitated over $35 trillion in onchain value and are used by 10 of the top 10 tokenized money market funds and 9 of the top 10 stablecoins by market cap.</p> <p>We combine AI-native security tooling with deep research and a decade of audit expertise to support leading institutions and crypto-native teams shaping the next generation of digital assets like DTCC, Fidelity, Coinbase, Uniswap, Aave, the Ethereum Foundation, and many more across the full secure development lifecycle.</p> <p><span style="font-weight: 400, style=;"><strong>Please note:</strong> Always refer to OpenZeppelin's official job page for the most accurate information about our open roles, as we have seen multiple third party job sites posting inaccurate information.</span></p></div><h3>The Marketing Team</h3> <p>The Marketing Team at OpenZeppelin drives awareness and adoption across every product and service we ship, from the flagship OpenZeppelin Contracts Libraries to open source development tooling like Relayers and Monitor and Financial Institutions services.</p> <p>Working hand-in-hand with Product, Design, Sales, and Open Source Engineering, the team owns messaging, go-to-market strategy, content, and events that position OpenZeppelin as the standard for blockchain development.</p> <h3>What you'll be doing</h3> <p>As OpenZeppelin's Senior Web Developer (Contractor, not benefits-eligible), you will lead a 6-month project to migrate openzeppelin.com from HubSpot CMS to Sanity + Next.js, replacing our current agency model with an in-house operating model powered by AI. You will own the full migration end-to-end — content modeling, schema design, frontend build, HubSpot CRM integration, SEO continuity — and design the component library and Claude Code + Sanity MCP integration that allows the Marketing and Brand teams to operate the website autonomously after the project.</p> <p>This is a senior, autonomous role. You will be the only developer on this project, working directly with Marketing and Brand stakeholders. The output of this engagement is a modern, fast, AI-native website that the OpenZeppelin team can run themselves. Should we feel the need at the end of the engagement, we are open to a contract extension and/or a small ongoing retainer to support the team as we settle into the new operating model.</p> <h3>Location:</h3> <p>OpenZeppelin is a fully remote organization, however candidates for this position mus