Frontend JavaScript Engineer

Frontend JavaScript Engineer (AI Training)

Evaluate and improve AI-generated JavaScript code to help ensure next-generation AI tools produce high-quality, engineer-like code.

What you’ll do

• Evaluate AI-generated JavaScript code for correctness, efficiency, and adherence to modern ES6+ standards
• Review DOM manipulation approaches and flag performance issues and anti-patterns
• Solve UI/UX challenges to test the model’s ability to produce responsive, interactive frontend solutions
• Identify bugs and suboptimal patterns in AI-generated frontend logic and propose clearly optimized alternatives
• Write human-readable documentation explaining state flow, event handling, and code structure
• Work independently and asynchronously, using your own schedule

Requirements

• Deep, hands-on knowledge of core JavaScript: async/await, closures, event loop, DOM manipulation
• 3–5 years practical experience with modern frameworks such as React, Vue, or Node.js
• Strong instincts for clean, maintainable, efficient frontend code
• Detail-oriented, systematic approach to code quality evaluation
• Clear written communicator who can explain technical reasoning plainly
• Bachelor’s degree in Computer Science or related technical field preferred

Nice to have

• Experience with data labeling, RLHF, or other AI training/evaluation projects
• Familiarity with testing frameworks, code review workflows, or frontend performance profiling
• Background in technical writing or code documentation

Contract & logistics

• Fully remote, flexible contract role
• 10–40 hours/week
• Training and onboarding support provided