React and Next.js Engineer

About the role

We are looking for an experienced React and Next.js Engineer to work remotely on an hourly contract basis. You will review AI‑generated code, evaluate frontend architectures, and produce high‑quality reference implementations and explanations for complex engineering problems.

Key responsibilities

• Develop AI training content by creating detailed prompts and reference answers for React/Next.js topics.
• Evaluate and rank AI responses to improve correctness, clarity, accessibility, and performance.
• Test AI models for inaccuracies or unsafe recommendations and ensure reliability across real‑world use cases.
• Conduct detailed code reviews focusing on rendering behavior, state management, SSR/SSG/ISR, routing, data fetching, hydration, caching, and bundle performance.
• Fact‑check technical information and write clear, step‑by‑step explanations and model solutions.

Required profile

• Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience.
• At least 4 years of professional experience building production web applications with React, including 2+ years with Next.js.
• Strong English proficiency (C1) for writing technical explanations.
• Proven experience conducting detailed code reviews and ensuring best‑practice implementation.

Required skills

• React (hooks, component patterns, state management, memoization, rendering behavior)
• Next.js (App Router, Server Components, route handlers, middleware, caching, deployment patterns)
• JavaScript / TypeScript
• Web fundamentals (HTTP, browser rendering, XSS, CSRF, cookies, sessions, OAuth flows)
• Performance optimization (bundle optimization, code splitting, image optimization, Core Web Vitals, profiling)
• Testing frameworks (Jest, Vitest, React Testing Library, Playwright, Cypress)
• CI/CD pipelines and linting