About

We’re looking for a senior-level Next.js developer to take charge of our main marketing website. This site drives revenue, so it needs to be fast, reliable, and easy for our marketing team to test new ideas. This is a contract role, not employment. What You’ll Do • Refactor our Next.js app to improve speed, SEO, and Core Web Vitals • Set up A/B testing without flicker (server/edge decisioning) • Build modular components (buttons, forms, CTAs, pricing sections) that support CRO tests • Create a clean data layer so our analytics tools (GA4, Meta CAPI, Heap, etc.) work correctly • Deploy and optimize on Vercel (ISR, PPR, caching, environments) • Connect safely to a REST API backend (legacy style) • Use Git and CI/CD pipelines for safe, controlled releases ⸻ Must-Have Skills • Next.js & React (expert) — SSR, ISR, PPR, middleware, API routes • Vercel (expert) — deployments, environments, edge optimization • JavaScript (ES6+) • A/B testing frameworks (Optimizely or similar) • Experience building for CRO (conversion-focused components) • Analytics data layers — passing clean events for GA4/CAPI/etc. • Strong focus on web performance (Core Web Vitals) • REST API integration • Git + CI/CD experience Nice-to-Have • Checkout/payment flow experience • Comfort working with legacy APIs • Past work with analytics/tracking specialists Engagement • Contract role (milestone or project-based) • Remote, flexible time zones • NDA required • All deliverables transferred to client How to Apply Please include: 1. Links to Next.js projects you’ve refactored or optimized (with performance results if possible) 2. Examples of your Vercel work (optimizations, edge functions, deployments) 3. A short note on how you set up no-flicker A/B testing 4. An example of a data layer implementation you built for analytics