Remote Backend Engineer for AI Coding Agents

mercor; San Francisco (CA); Hybrid; CAD 157,000 - 177,000; Full time

Job summary

Mercor is seeking a Backend Engineer (Coding Agent Experience) for a contract, remote position. You will use frontier AI coding agents to complete and evaluate complex engineering tasks and review model-generated code for quality and performance.

Ideal candidates have 2+ years in backend engineering, experience building APIs or distributed systems, and familiarity with AI coding tools. You will work asynchronously to deliver high-quality backend solutions.

Qualifications

• 2+ years of 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.

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.

Job description

Mercor is seeking a Backend Engineer (Coding Agent Experience) for a contract, remote position. You will use frontier AI coding agents to complete and evaluate complex engineering tasks and review model-generated code for quality and performance.

Ideal candidates have 2+ years in backend engineering, experience building APIs or distributed systems, and familiarity with AI coding tools. You will work asynchronously to deliver high-quality backend solutions.