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hackajob is collaborating with Mercor to connect them with exceptional tech professionals for this role.
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
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
- 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
- Start Date: Immediate
- Duration: 1 month
- Commitment: Part-time (15-20 hours/week)
- Schedule: Fully remote and asynchronous - flexible working hours
- $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
- 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
Key Skills
Ranked by relevance
ai
javascript
typescript
react
san
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- Posted
- Nov 02, 2025
- Type
- Contract
- Level
- Entry
- Location
- United Kingdom
- Company
- hackajob
Industries
Software Development
Categories
Engineering
Information Technology
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3 roles aligned with this opportunity
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Contract Full Stack Developer - AI Trainer
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Full Stack Engineer - Frontend Oriented
2026-05-29
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