OpenZeppelin
onchain finance
SeniorWebDeveloper(Contractor)
Neural analysis suggests this role is
optimal for Senior candidates.
“Senior Web Developer (Contractor) at OpenZeppelin. Skills: End-to-end CMS migration (HubSpot to Sanity + Next.js), Sanity expertise, Next.js frontend development, Technical SEO, AI-native workflow integration. Lead the end-to-end CMS migration from HubSpot to Sanity + Next.js. Design and build a comprehensive library of reusable, design-approved components”
What You'll Achieve.
Migrate openzeppelin. com from HubSpot CMS to Sanity + Next. js; Replace current agency model with an in-house operating model powered by AI; 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; Deliver a modern, fast, AI-native website that the OpenZeppelin team can run themselves; Ensure SEO continuity; Ensure Sales and Marketing keep everything they rely on today (HubSpot CRM, GA4 analytics); Enable Marketing and Brand teams to operate the website through natural language commands to Claude; Ensure reliability and fast iteration cycles; Ensure OpenZeppelin is genuinely self-sufficient at the end of the engagement
Industry & Context.
Candidates must be located within UTC+6 to UTC-2 time zones
What They're Looking For.
Must Have
5+ years of professional web development experience with frontend expertise, TypeScript, React, Next.js, Proven Sanity expertise, Built and shipped multiple production websites on Sanity, including schema design, custom Studio components, and GROQ queries, Experience leading at least one complex CMS migration end-to-end, ideally from HubSpot, WordPress, or another monolithic CMS to a modern headless stack, Know how to preserve SEO rankings, handle redirects, and migrate content cleanly, Understanding of technical SEO, Core Web Vitals, and modern web performance optimization, Comfort with version control (Git), CI/CD pipelines, Modern deployment platforms (Vercel, Netlify, or similar), Experience integrating HubSpot forms and tracking with a Next.js frontend, An eye for design and attention to detail when translating mockups into responsive, production-quality code, Native or fluent English, Work daily with non-technical stakeholders and need to translate technical decisions into plain language, Senior-level autonomy, Deeply AI-native workflow: use Claude Code (or an equivalent agentic AI coding tool) daily, embedded into your development process, Can articulate where AI accelerates your work and where you override it, Excited about building AI-first content workflows that enable non-technical teams
Nice to Have
Experience in the blockchain, Web3, or crypto industry, Familiarity with HubSpot CMS, Experience building custom Sanity Studio plugins or input components, Background working alongside marketing and brand teams, Background working with developer tools, open source communities, or security companies
What You'll Do.
Lead the end-to-end CMS migration from HubSpot to Sanity + Next.js
Design and build a comprehensive library of reusable
design-approved components
Integrate HubSpot CRM and GA4 analytics into the new stack
Set up the Claude Code + Sanity MCP integration
Implement technical SEO and AIO optimization
Manage the underlying website infrastructure including CI/CD pipelines
Build interactive elements
Document architecture
and team-facing processes
Handle ongoing website requests (new pages
integrations) during the engagement period
How You'll Work.
Team & Collaboration
Work directly with Marketing and Brand stakeholders; Collaborate with the Brand team; Work daily with non-technical stakeholders; Train the Marketing and Brand teams to operate the website through natural language commands to Claude
Communication Scope
Translate technical decisions into plain language
Process & Methodology
Lead the full migration end-to-end, Drive the project forward independently
Full Job Description
About us 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. 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. 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. Please note: 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. The Marketing Team 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. 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. What you'll be doing 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 autonom
Applying for this Senior Web Developer (Contractor) role?
Most applicants get filtered before a human reads their resume. See if yours makes the cut.
ANONYMOUS · UNFILTERED
What do employees actually say about OpenZeppelin?
Real rants from real employees. Read before you apply.