Models ship UI that renders in the demo and breaks everywhere else: state that desyncs on the second render, an accessibility tree no screen reader can follow, a layout that collapses the moment real content arrives. Someone has to judge the interface a user actually touches, and that someone is you.
As a Frontend Engineer you'll stress-test how models build components, state, and end-to-end web features, expose where the UX and correctness break, and write the answers a strong frontend engineer would ship.
What you’ll actually do
- Probe frontend reasoning across components, state management, accessibility, and rendering, and see where the model's UI falls apart.
- Find the failures that matter : stale state, re-render bugs, broken a11y, and layouts that break under real data.
- Write the correct implementation when the model falls short, with the UX and edge cases handled.
Common backgrounds: Frontend Engineer, UI Engineer, Web Developer.
What we look for
- Professional or serious open-source experience building web UIs.
- Comfort with a modern framework and CSS; most tasks assume React, TypeScript, or similar.
- Clear written English: your explanations are the training signal.
- No degree required. We care about what you can do, not where you learned it.
Up to $150+/hr depending on task difficulty and specialization. Many contributors add $100k–$200k a year; some make it their full-time income.
About DataAnnotation
DataAnnotation is where 1M+ experts train the world’s leading AI models. Hundreds of millions paid to contributors to date, and the average contributor stays 5+ years. Flexible, remote, and always project-available.
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Hourly rate up to $150+ / hour
Commitment Flexible hours
Type Independent contractor
Payouts Weekly
Apply now