Frontend Software Engineer (React, TypeScript or JavaScript)

Mercor is hiring experienced frontend engineers to support a variety of high-impact research collaborations with leading AI labs. Freelancers will help improve AI systems through work extending coding benchmarks that reflect real-world development across diverse languages and domains.

This is a unique opportunity to apply your engineering expertise toward shaping the next generation of intelligent systems.

Key Responsibilities

Develop and validate coding benchmarks in React, TypeScript, or JavaScript by curating issues, solutions, and test suites from real-world repositories

Ensure benchmark tasks include comprehensive unit and integration tests for solution verification

Maintain consistency and scalability of benchmark task distribution

Provide structured feedback on solution quality and clarity

Debug, optimize, and document benchmark code for reliability and reproducibility

Ideal Qualifications

3–10 years of experience as a frontend engineer

Degree in Software Engineering, Computer Science, or a related field

Strong proficiency in React, Typescript or Javascript

Experience with debugging, testing, and validating code

Comfortable with technical writing and attention to detail

Project Timeline

Start Date : Immediate

Duration : 1 month

Commitment : Part-time (15–20 hours / week)

Schedule : Fully remote and asynchronous – flexible working hours

Compensation & Contract

$90 per hour plus lucrative bonus per approved task (1 task takes approximately 1 hour to complete)

Median average pay inclusive of bonuses is $200 / hr

Independent contractor

Daily payment via Stripe Connect

Application & Onboarding Process

Upload your resume

AI interview : A short, 15-minute conversational session to understand your background, experience, and interest in the role

Brief assessment testing real-world coding ability, technical depth, and debugging approach

Follow-up communication within a few days with next steps and onboarding details

• About Mercor
• Mercor is a San Francisco-based company specializing in connecting elite professionals with cutting-edge AI initiatives. Our investors include Benchmark, General Catalyst, Adam D’Angelo, Larry Summers, and Jack Dorsey. Thousands of professionals across engineering, research, and creative fields have partnered with Mercor on frontier projects shaping the future of AI.

Apply today and leverage your software engineering expertise to help build the future of AI-driven systems!