Frontend / UI Engineer

Responsibilities

• 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.

Languages

Required

• A public GitHub profile with substantial, verifiable contributions — commits, merged PRs, or repositories you maintain. This is essential.

Nice to have

• Strong frontend engineering: React, TypeScript, or similar, with experience shipping complex interfaces and interactions.
• Strong written English, and the ability to explain expected behavior and reproducible verification steps.

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