React and Next.js AI Code Review Engineer (English)

You will review AI-generated frontend code, technical explanations, and application designs. Your work will help assess whether AI responses are correct, clear, accessible, secure, and efficient.

• Review React and Next.js code for correctness, readability, accessibility, security, and performance.
• Find issues with rendering, state management, routing, data fetching, hydration, caching, and bundle efficiency.
• Write reference answers, explanations, and model solutions for advanced frontend problems.
• Compare AI responses and rate their reasoning, technical accuracy, and use of best practices.
• Create prompt content covering React and Next.js topics for AI training workflows.
• Fact-check technical details and help improve AI training content for complex engineering topics.

This is a remote, part-time contractor role focused on AI code review and evaluation. The work is conducted in English.

• $60 to $90 per hour.
• 20+ hours per week.
• Fully remote and open to candidates in Germany, India, and the United States.
• Contractor position with part-time work.
• Intermediate experience level.
• Strong professional experience with React and Next.js, including modern React patterns and the Next.js App Router.
• Strong knowledge of HTTP, browser rendering, security basics, cookies, sessions, and OAuth flows.
• Practical experience with Jest, Vitest, React Testing Library, Playwright, Cypress, linting, and CI/CD.
• Experience with code review, performance optimization, accessibility, and clear technical writing in English.
• Experience with SSR, SSG, ISR, Server Components, middleware, caching, and deployment patterns is helpful.
• Familiarity with keyboard navigation, ARIA, focus management, semantic HTML, and contrast standards is helpful.
• Experience building production React applications at scale is helpful.
• Prior AI training, data annotation, or evaluation experience is a strong plus.

Apply on OpenTrain with your resume, then complete the application on the hiring site.

AI training is the human work behind many AI systems, including reviewing model responses, writing examples, and rating technical answers. People with software expertise help models learn accurate, useful behavior through careful evaluation and reference solutions.