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ClayClayNew York, NY

Web Developer

Build and optimize Webflow-based websites, landing pages, conversion funnels, integrations, and experimentation infrastructure. The role requires 5+ years of web development experience, expert Webflow skills, strong JavaScript/TypeScript fundamentals, and demonstrated success improving conversion rates.

130k – 160k/yr
Hybrid5+ YOEFrontend Engineering

About the role

Responsibilities

  • Build high-converting web experiences in Webflow, including landing pages, conversion funnels, and website features from concept through launch.
  • Write custom JavaScript for interactive elements, build CMS architectures, and implement advanced Webflow functionality.
  • Develop integrations, APIs, webhooks, automation, custom middleware, event-tracking architectures, and data flows across Webflow, CRM, analytics, and marketing automation platforms.
  • Build A/B testing frameworks, experimentation infrastructure, and personalization engines.
  • Analyze funnel data, identify bottlenecks, and implement technical solutions that improve conversion rates.
  • Balance rapid iteration with code quality, maintainability, performance, accessibility, and reliability.
  • Partner with Marketing, Product, and Growth teams to translate business goals into technical solutions.
  • Lead development projects, provide technical guidance, and support initiatives through launch.
  • Explore advanced web experiences using technologies such as GSAP and Three.js while maintaining performance and conversion goals.

Requirements

  • 5+ years of professional web development experience, including at least 3 years building conversion-focused websites and landing pages.
  • Expert Webflow development skills, including advanced CMS implementations, custom code integration, and complex builds.
  • Strong programming fundamentals in JavaScript/TypeScript, HTML5, and CSS3.
  • Experience building REST API clients, implementing webhooks, handling OAuth flows, and debugging integration issues.
  • Experience with Git, Node.js, React or similar frameworks, serverless functions, and build tools.
  • Track record of improving conversion rates through technical testing, optimization, and experimentation.
  • Understanding of A/B testing methodology, statistical significance, and CRO best practices.
  • Strong web performance expertise, including Core Web Vitals optimization.
  • Portfolio demonstrating exceptional development skills and end-to-end technical ownership, including live websites, complex functionality, code samples, or GitHub repositories.
  • Systems mindset for scalable, maintainable codebases and reusable components.
  • Strong collaboration and communication skills, including explaining technical concepts to non-technical teams.
  • Analytical thinking combined with business acumen and understanding of conversion metrics, user behavior, and revenue.
  • Ability to work autonomously from requirements through deployment.
  • High standards with a willingness to ship, iterate, and improve.

Nice-to-Haves

  • Familiarity with Three.js, GSAP, and animation libraries.
  • Experience with GA4, Segment, Mixpanel, and custom tracking.
  • Backend development or full-stack capabilities.
  • Understanding of technical SEO and search optimization.
  • Experience in high-growth startups or fast-paced environments.
  • Open-source contributions or technical writing.

Skills

webflowJavaScriptTypeScriptHTMLcss3REST APIsWebhooksOAuthGitNode.jsReactserverless functionsA/B Testingcore web vitalstechnical seo
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