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Frontend Engineer

DataAnnotation · 100% remote · Contract · Posted

Pay
$40–150/hr
Location
Worldwide
Languages
English
Hours
Flexible hours
Openings
Not listed
Level
Expert
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Summary

Evaluate AI web interfaces, components, and state management. Identify rendering, accessibility, and layout failures, then write corrected implementations that handle user experience and edge cases.

What you'll do

  • Test AI reasoning about components, state, accessibility, and rendering
  • Identify stale state, rendering bugs, accessibility failures, and broken layouts
  • Write corrected implementations that handle user experience and edge cases

Requirements

  • Professional or serious open-source experience building web interfaces
  • Familiarity with modern frameworks and CSS, including React, TypeScript, or similar tools
  • Clear written English

Skills

  • React
  • TypeScript
  • CSS
  • State Management
  • Web Accessibility
  • UI Development
  • Rendering

Full description

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.

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

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