Sr. Frontend Engineer

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.

Position: Software Engineer
Type: Freelance
Compensation: $70–$80/hour
Duration: 1–2 months
Commitment: 15–25 hours/week, with flexibility up to 40 hours/week

Role Responsibilities

• Write realistic, self-contained prompts for client-side web apps, games, tools, and simulations.
• Create precise, binary rubrics tagged by verification type to ensure quality.
• Ensure all rubric items are pass/fail and verifiable from screenshot + code inspection.
• Develop high-quality vibe coding data to train models on skills like state management, interactivity, UI correctness, and robustness.
• Collaborate on building training datasets to improve AI model performance on real-world client-side web development tasks.
• Work independently and asynchronously to meet deadlines and improve AI model performance.

Qualifications

Must-Have

• 2+ years of experience in frontend/full-stack development or technical content creation.
• Bachelor's degree in Software Engineering, Computer Science, or a related field.
• Strong proficiency in JavaScript, TypeScript, React, or vanilla JS.
• Comfortable writing precise technical specifications and evaluation criteria.

Start Date

• Immediate

Application Process (Takes 20–30 mins to complete)

• Upload your resume
• AI interview: A short, 15-minute conversational session to understand your background, experience, and interest in the role
• Follow-up communication within a few days with next steps and onboarding details

Resources & Support

• For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome/welcome
• For any help or support, reach out to: support@mercor.com

*PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.*