React and Next.js Engineer

Summary

SME Careers is a fast-growing AI data services company and subsidiary of SuperAnnotate that provides AI training data to many of the world’s largest AI companies. As a React / Next.js Engineer, you will work remotely to review AI-generated React/Next.js code and produce high-quality reference implementations, ensuring performance and accessibility.

Responsibilities

• Develop AI Training Content: Create detailed prompts across React/Next.js topics and write high-quality reference answers to guide AI learning
• Optimize AI Performance: Evaluate and rank AI responses to enhance correctness, clarity, accessibility, and performance
• Ensure Model Integrity: Test AI models for inaccuracies or unsafe recommendations, validating reliability across real-world use cases

Skills

• Bachelor's degree or higher in Computer Science, Software Engineering, or a closely related technical field (or equivalent practical experience)
• 4+ years of professional experience building production web applications with React, including at least 2+ years with Next.js (or equivalent SSR framework experience)
• Expert-level proficiency in modern React: hooks, component patterns, state management, memoization, rendering behavior, and testing
• Strong understanding of web fundamentals: HTTP, browser rendering, security basics (XSS/CSRF), cookies/sessions, and OAuth flows
• Performance mindset: bundle optimization, code splitting, image optimization, Core Web Vitals, and profiling
• Experience with testing and quality: Jest/Vitest, React Testing Library, Playwright/Cypress, linting, CI/CD
• Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English-language guidelines
• Proven experience conducting detailed code reviews and enforcing coding standards for maintainability, correctness, and accessibility
• Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle issues in complex UI code
• Previous experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus
• Strong Next.js fundamentals (Next 13/14+ preferred)

Qualifications

Must Haves

• Bachelor's degree or higher in Computer Science, Software Engineering, or a closely related technical field (or equivalent practical experience)
• 4+ years of professional experience building production web applications with React, including at least 2+ years with Next.js (or equivalent SSR framework experience)
• Expert-level proficiency in modern React: hooks, component patterns, state management, memoization, rendering behavior, and testing
• Strong understanding of web fundamentals: HTTP, browser rendering, security basics (XSS/CSRF), cookies/sessions, and OAuth flows
• Performance mindset: bundle optimization, code splitting, image optimization, Core Web Vitals, and profiling
• Experience with testing and quality: Jest/Vitest, React Testing Library, Playwright/Cypress, linting, CI/CD
• Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English-language guidelines
• Proven experience conducting detailed code reviews and enforcing coding standards for maintainability, correctness, and accessibility
• Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle issues in complex UI code

Nice to Haves

• Previous experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus
• Strong Next.js fundamentals (Next 13/14+ preferred)

Benefits

• This will also provide you with access to future projects available through our expert network.