Full-Stack Engineer

Headquarters: United States URL: https://opentrain.ai/ Full-Stack Engineer, Part-Time AI Code Evaluation - Remote (United States) • $50–$100 per hour equivalent, paid per accepted task• 100% remote• Part-time• Under 20 hours a week, you choose when Work on AI code evaluation on your own schedule, using your full-stack engineering judgment to create, review and validate software tasks. AI systems improve through examples reviewed by engineers. In this role, full-stack professionals design realistic tasks, assess generated code, write reference solutions, and explain technical gaps. The work is part-time remote contract work for under 20 hours per week. What you'll do• Create and solve realistic full-stack tasks involving user-facing features and APIs• Trace requests and data across browsers and back-end services to judge whether an AI implementation works correctly• Write professional reference solutions and validate code across front-end and back-end systems• Review AI-generated code f