Backend Developer - Fully Remote | Upto $85/hr

🏢 mercor · all jobs
📍 United Kingdom
💰 USD 85 / hourly
📅 Posted Sep 13, 2026 · via Himalayas
🏷 Backend Development, Software Engineer, AI ML Engineer, Backend Engineer, Platform Engineering, Remote Backend Developer +3 more
Apply on original site ↗

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: Backend Engineer (Coding Agent Experience)
Type: Contract
Compensation: $85/hour
Location: Remote
Role Responsibilities

- Use frontier AI coding agents to complete and evaluate complex engineering tasks.

- Review model-generated code for correctness, quality, maintainability, and performance.

- Identify bugs, edge cases, and failure modes in model outputs.

- Compare outputs from multiple frontier models and assess their strengths and weaknesses.

- Apply professional engineering judgment to realistic backend engineering scenarios.

- Work independently and asynchronously to meet deadlines while improving AI model performance .

Qualifications

Must-Have

- 2+ years of professional backend engineering experience.

- Experience building APIs , distributed systems, microservices, backend platforms, or databases.

- Regular use of AI coding agents such as Cursor, Claude Code, Codex, Windsurf, Gemini CLI, or similar tools.

- Ability to evaluate model-generated code and identify bugs, edge cases, and architectural tradeoffs.

Preferred
- Experience working on large-scale production systems.

Compensation & Legal

- $400 per accepted task .

- Typical tasks take approximately 1–3 hours after ramp-up.

- No fixed task limits.

- Compensation is tied to accepted work.

Application Process (Takes 20–30 mins to complete)

- Upload resume

- AI interview based on your resume

- Submit form

Resources & Support

- For details about the interview process and platform information, please check:

- For any help or support, reach out to:

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

Originally posted on Himalayas

Flights + hotels

This role requires you to be in the United Kingdom. If that means relocating or flying in, it is worth checking fares before you commit to a start date.

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