Web Developer (Growth & Conversion Optimization)
Claylabs · New York
About this role
## About Clay AI Clay is building the engine for the biggest wave of company creation in history—helping businesses predict the next best action and take it. Clay powers personalized go-to-market campaigns with data, signals, and AI research, and is already helping thousands of customers (including Anthropic, OpenAI, Google, and Visa). ## Role: Web Developer (Growth & Conversion Optimization) You’ll build high-converting web experiences in **Webflow**, owning landing pages, conversion funnels, and website features from concept through launch. ### What you’ll do - **Build in Webflow:** Develop landing pages, conversion funnels, and interactive website features; write custom **JavaScript** and design advanced **CMS** architectures. - **Ship fast with quality:** Move quickly from brief to production-ready code with minimal handoffs. - **Power growth with technical infrastructure:** Architect and implement **integrations, APIs, webhooks, and automation** connecting Webflow to the marketing/sales stack (CRM, analytics, marketing automation). - **Own conversion optimization through code:** Design and implement **A/B testing frameworks**, experimentation infrastructure, and **personalization engines**. - **Turn funnel insights into technical solutions:** Analyze bottlenecks, translate findings into engineering work, and reduce friction to improve key metrics. - **Collaborate and lead with excellence:** Balance speed and quality (refactor vs. iterate), communicate clearly with stakeholders, and refine based on real performance data. - **Push technical boundaries (without sacrificing UX):** Explore advanced experiences (e.g., **GSAP**, **Three.js**) while maintaining **performance, accessibility, and conversion**. ### What you’ll bring - **5+ years** professional web development; **3+ years** building conversion-focused websites/landing pages - **Expert Webflow** skills (advanced CMS, custom code integration, complex builds) - Strong fundamentals in **JavaScript/TypeScript, HTML5, CSS3** - **API integration** experience (REST clients, webhooks, OAuth flows, debugging) - Experience with modern tooling/frameworks: **Git, Node.js, React (or similar), serverless functions, build tools** - Familiarity with **Three.js** and **GSAP** is a plus - Proven track record improving conversion rates via technical experimentation and optimization - CRO knowledge: **A/B testing methodology** and statistical significance - **Web performance obsession** (Core Web Vitals, efficient code, measurable improvements) - A portfolio showing end-to-end ownership (live sites, complex functionality, code samples/GitHub) - Systems mindset for scalable, maintainable code; strong collaboration and communication - Analytical thinking tied to business outcomes (conversion, user behavior, revenue) - Ability to work autonomously from requirements to deployment ### Bonus points - Analytics platforms: **GA4, Segment, Mixpanel** + custom tracking - Backend/full-stack experience - Technical SEO/search optimization - Experience in high-growth startups/fast-paced environments - Open-source contributions or technical writing **If you’re excited to build conversion-focused web systems and ship high-quality experiences quickly, Clay wants to hear from you.**
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