iOS Engineer - AI Model Evaluator - AI Trainer

Role

Mercor is hiring a contract iOS Engineer to work on the Coding Agent Experience. The core mission is to use frontier AI coding agents to complete, review, and evaluate mobile engineering tasks and model-generated iOS code.

Key Responsibilities

• Use frontier AI coding agents to complete and evaluate complex engineering tasks.
• Review model-generated mobile application 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 strengths and weaknesses.
• Apply professional engineering judgment to realistic mobile engineering scenarios.

Requirements

Must-have

• 2+ years of professional iOS engineering experience.
• Experience building and maintaining production iOS applications using Swift and modern iOS frameworks.
• Regular use of AI coding agents such as Cursor, Claude Code, Codex, Windsurf, Gemini CLI, or similar tools.
• Ability to evaluate model-generated mobile implementations and architectural decisions.

Preferred

• Experience shipping production mobile applications.

Compensation & Terms

• Type: Contract
• Hourly rate: $85/hour
• Compensation tied to accepted work: $400 per accepted task (typical tasks ~2–3 hours after ramp-up)

Application Process

• Upload resume
• AI interview based on your resume (takes ~20–30 minutes)
• Submit form

Resources & Support

• Interview and platform details: https://talent.docs.mercor.com/welcome
• Support: support@mercor.com