Frontend / UI Engineer

Frontier AI Lab; United States; Remote; USD 110,000 - 138,000; Part time

Job summary

Remotebridge is seeking a Frontend / UI Engineer for contractor work, fully remote. You will translate design materials into precise coding tasks with clear success criteria and a working reference implementation.

The role requires strong React/TypeScript frontend capabilities and active, public GitHub contributions. You will read, modify and validate real application code and review others’ work for accuracy in a remote setting.

Qualifications

• Public GitHub profile with substantial, verifiable contributions (commits, merged PRs, or maintained repos).
• Strong frontend engineering: React, TypeScript, or similar, with experience shipping complex interfaces and interactions.
• Able to read, modify, debug and validate real application code.
• Experience with UI, graphics, SVG, or Canvas work is valuable.
• Product or UI designers with hands-on frontend implementation and public code contributions are a fit.
• Strong written English, and the ability to explain expected behavior and reproducible verification steps.
• Prior data labeling, AI evaluation, or rubric-based review experience is a plus, not a requirement.

Responsibilities

• Turn screenshots, diagrams and videos into challenging coding tasks with objective success criteria.
• Design multi-step coding tasks grounded in visual material: screenshots, UI mockups, diagrams, or screen recordings of real workflows.
• Specify which code and artifacts the task involves, and what the expected behavior is.
• Define objective success criteria - how someone would verify the task was completed correctly, not just plausibly.
• Provide a working reference implementation.
• Review tasks built by other contributors for technical accuracy and verifiability.
• Flag tasks that turn out to be ambiguous or ungradable rather than submitting them.

Skills

Public GitHub contributions

React

TypeScript

Frontend engineering

UI knowledge

Tools

GitHub

Job description

Role Title: Frontend / UI Engineer

Role Type: Contractor

Location: Remote

Opportunity Snapshot

Pay: $80-100/hour equivalent (approximately $640-800 per task)

Time per task: ~8 hours

Engagement: Project-based - paid per approved task

Location: Fully remote

You'll need: A public GitHub profile with substantial, verifiable contributions

Your tasks

Turn screenshots, diagrams and videos into challenging coding tasks with objective success criteria.

• Design multi-step coding tasks grounded in visual material: screenshots, UI mockups, diagrams, or screen recordings of real workflows.
• Specify which code and artifacts the task involves, and what the expected behavior is.
• Define objective success criteria - how someone would verify the task was completed correctly, not just plausibly.
• Provide a working reference implementation.
• Review tasks built by other contributors for technical accuracy and verifiability.
• Flag tasks that turn out to be ambiguous or ungradable rather than submitting them.

What we're looking for

• A public GitHub profile with substantial, verifiable contributions - commits, merged PRs, or repositories you maintain. This is essential.
• Strong frontend engineering: React, TypeScript, or similar, with experience shipping complex interfaces and interactions.
• Able to read, modify, debug and validate real application code.
• Experience with UI, graphics, SVG, or Canvas work is especially valuable.
• Product or UI designers with hands-on frontend implementation and public code contributions are also a fit.
• Strong written English, and the ability to explain expected behavior and reproducible verification steps.
• Prior data labeling, AI evaluation, or rubric-based review experience is a plus, not a requirement.