[Hiring] Frontend / UI Engineer @YO AI Labs

Role Description

We are seeking experienced Frontend / UI Engineers to create and evaluate challenging coding tasks based on visual references such as screenshots, UI mockups, diagrams, and screen recordings. You will use your frontend development expertise to design tasks with clear requirements, measurable success criteria, and working reference implementations.

Key Responsibilities

• Design multi-step coding tasks based on screenshots, UI mockups, diagrams, and screen recordings of real workflows.
• Define the code, files, and artifacts involved in each task, along with the expected functionality and behavior.
• Establish objective success criteria to ensure tasks can be accurately verified and evaluated.
• Develop working reference implementations demonstrating the expected results.
• Review tasks created by other contributors for technical accuracy, clarity, and verifiability.
• Identify and flag ambiguous or ungradable tasks rather than submitting unclear requirements.

Qualifications

• A public GitHub profile demonstrating substantial and verifiable contributions, such as commits, merged pull requests, or maintained repositories. This is essential.
• Strong frontend development experience with React, TypeScript, or similar technologies.
• Experience building and delivering complex user interfaces and interactive applications.
• Ability to read, modify, debug, and validate real application code.
• Strong written English communication skills.
• Ability to explain expected application behavior and provide clear, reproducible verification steps.

Preferred Qualifications

• Experience with UI development, graphics, SVG, or Canvas.
• Product or UI design experience combined with hands-on frontend implementation and public code contributions.
• Previous experience in data labeling, AI evaluation, or rubric-based technical review.