Pay: up to $40 – $150+ /hour (depends on task difficulty and specialization)

Location: Remote · Type: Independent contractor · Hours: Flexible hours · Payouts: Weekly

Overview

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.

Roles this fits

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.

Compensation

Up to $40 – $150+/hr depending on task difficulty and specialization. Many contributors add $10k–$100k+ a year; some make it their full-time income.

About DataAnnotation

DataAnnotation is where 100k+ experts train the world’s leading AI models. $150M+ paid to contributors to date, and the average contributor stays 5+ years. Flexible, remote, and always project-available.

How it works

Apply, pass the qualification assessment, then pick up paid projects whenever you want and get paid weekly.

Frontend Engineer

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