Remote Frontend Software Engineer (React, TypeScript or JavaScript) - AI Trainer ($80-$120 per hour)Mercor • Rancho Cucamonga, California, United States

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Remote Frontend Software Engineer (React, TypeScript or JavaScript) - AI Trainer ($80-$120 per hour)

Mercor

Rancho Cucamonga, California, United States

Rancho Cucamonga, California, United States

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About

**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!**

Rancho Cucamonga, California, United States

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