Senior Frontend Engineer (Next.js / React)

About LearnWise AI We're an AI-first scale up helping universities and colleges support students and faculty with smart, knowledge-driven tools from AI tutoring to feedback and support. Small team, high ownership, real user impact. Why this role exists We need a senior who can take product ideas from Figma to fast, accessible, production apps on Vercel - and lead the craft on performance, and accessibility. What you will do: * Ship high-quality frontend apps in Next.js, React and TypeScript (App Router & Page Router, SSR/SSG/ISR, middleware, edge patterns). * Translate Figma designs into responsive, accessible UI; iterate quickly with design & product. * Champion accessibility to WCAG 2.2 AA across components and flows. * Own performance: optimize data loading/streaming, reduce bundle size, profile the JS event loop and async flows. * Keep dependencies lean and healthy; document decisions; raise the bar through reviews. * Deploy, preview, and monitor apps on Vercel (analytics

error tracking, observability). You will do great here if you have: * 8+ years building production frontends. * Deep Next.js knowledge (App vs Page routes) and strong React + modern TypeScript/JavaScript fundamentals. * Mastery of the browser runtime: event loop, promises, concurrency, streaming. * Proven track record shipping accessible UI to WCAG 2.2 AA. * Professional fluency in English (written & spoken). * Bias to action, comfort with ambiguity, and love for startup pace. Nice to have: * Built streaming UIs, chat experiences, or AI-powered apps (real-time, RAG, agents). * Experience with design systems, motion/interaction details, and component libraries. * Tooling for performance & observability (Web Vitals, Lighthouse, bundle analysis). How we work: * Default to open: write things down, share context early. * Small team, big ownership: you'll own projects end-to-end. * Measure > guess: we ship, we instrument, we learn. * Quality and speed: we don't choose-we engineer for both. Location: * Remote is OK; EU is a must-have. * Prefer Barcelona, Spain or Amsterdam, Netherlands if you want hybrid/office. Compensation * Salary: competitive (location-adjusted). * Flexible time off, home-office budget, and learning stipend. If you are passionate about creating intuitive, engaging user interfaces, interested in working for a startup, and excited about the opportunity to work on innovative AI projects that make an impact for students just like you, we would love to hear from you! To fast-track your application, please visit https://join.learnwise.ai/Senior-Frontend-Engineer-Next-js-React-2856fdcbf21080dabcd1f74db161f635 and complete the form on this page.