Frontend / UI Engineer, Part-Time AI Code Evaluation - Remote (Worldwide)

OpenTrain AI is hiring for this role.

• $640–$800 per approved task

• 100% remote

• Part-time project-based contractor work

• Flexible schedule

Use your frontend and interface engineering judgment on practical tasks that help coding systems improve.

AI-training work uses expert review to make coding systems more useful. Engineers inspect interface behavior, reason about implementation choices, and explain whether a change is correct and complete. This is part-time project work done remotely on a flexible schedule.

What you'll do

• Build or review frontend and user-interface components against a written task

• Inspect code and interface behavior for correctness, usability and completeness

• Explain implementation decisions and identify issues that affect the finished result

• Submit clear, reproducible work that follows the task instructions

Why this is worth your time

• Earn $640–$800 for each approved task

• Apply frontend and UI engineering judgment to real coding evaluation work

• Work on frontend coding challenges for AI training and evaluation

• Fully remote and flexible, no fixed shifts, no commute

Who this is for

• Maintain a public GitHub profile showing substantial, verifiable work, including repositories you maintain, pull requests you merged, or meaningful commits.

• Demonstrated frontend engineering experience using React, TypeScript, or similar technologies.

• Can inspect, edit, troubleshoot, and verify application code in practice.

• Fluent written English.

• Careful attention to interface behavior, edge cases and task requirements.

• No AI experience needed.

Pay and details

• $640–$800 per approved task; part-time project-based work as an independent contractor.

• Part-time, flexible schedule; fully remote; eligible countries: United Arab Emirates, Argentina, Austria, Bangladesh, Belgium, Bahrain, Brazil, Canada, Switzerland, Chile, Colombia, Germany, Denmark, Algeria, Egypt, Spain, France, United Kingdom, Ghana, Greece, Indonesia, India, Italy, Jordan, Japan, Kenya, Kuwait, Kazakhstan, Lebanon, Sri Lanka, Morocco, Mexico, Malaysia, Nigeria, Netherlands, Oman, Peru, Philippines, Pakistan, Palestine, Portugal, Qatar, Saudi Arabia, Singapore, Thailand, Tunisia, Taiwan, United States, Uzbekistan, Vietnam, and South Africa.

How to apply

1. Apply on OpenTrain (about two minutes): https://app.opentrain.ai/api/out/cmw6nscfk002v08jn8fsp2658?ch=qajobsboard&sub=p_cmw6nscfk002v08jn8

2. Complete the application on the hiring platform.

3. If shortlisted, take a short AI interview with technical questions and a coding challenge soon after you are invited.

Bring your frontend judgment to coding tasks that help improve useful AI systems.

About OpenTrain AI

OpenTrain AI connects experienced professionals with paid, part-time AI training work: shaping and improving the AI systems that companies are building right now.