Software Engineer - Frontend

About this role

SWE - Frontend (Contract)
Labelbox

• Remote (United States preferred) Shape the data that powers frontier AI

Quick facts

• Engagement - Hourly, at‑will contractor
• Schedule - Fully remote & asynchronous (min. 15 hrs/week)
• Pay Range (US) - \$25 – \$100 per hour
• Start Date - Rolling — staffed as projects launch

What You’ll Do

• Review and evaluate AI-generated frontend code (JavaScript, HTML, CSS) for correctness, efficiency, accessibility, and clarity
• Write high-quality frontend solutions to UI and web development problems across varying difficulty levels
• Create clear, user-friendly explanations for design decisions, code logic, and problem-solving strategies
• Identify and flag edge cases or ambiguities in problem statements or AI responses.

You’re a great fit if

• Fluent in English, with strong written communication skills and the ability to clearly explain frontend coding concepts
• Expertise in JavaScript: Deep familiarity with core JavaScript features such as async/await, closures, DOM manipulation, ES6+ syntax, and browser APIs
• 3–5 years of experience with modern frontend frameworks, tools, or domains (e.g., React, Vue, Angular, web development) is a plus
• Bachelor’s degree (or pursuing one) in Computer Science or a related field. Master’s or PhD preferred, but not required.
• Bonus: Experience with data labeling, RLHF, or other AI training projects

About The Role

• Flexible workload — work from anywhere, on your own schedule
• High impact — your craft directly improves models used by top AI labs & Fortune 500 teams
• Clear ownership — know exactly what success looks like and have autonomy to deliver
• Growth potential — consistent high performers spearhead new programs and mentor incoming SMEs

Interview process

• Complete a screening with Zara, our AI interviewer in English, to learn more about your background and experience.
• Domain-specific Zara interview to assess your frontend expertise, including front...