Software Engineer (Python) at Mercor

Software Engineer (Python) | $100–200/hr | Worldwide Remote

Mercor is hiring Software Engineers on behalf of a leading AI lab to help train and improve agentic AI systems. In this role, you'll work closely with advanced AI models, providing high-quality engineering input that helps these systems reason, plan, and execute complex software tasks. This is a hands-on role ideal for engineers who enjoy breaking down real-world problems, writing production-quality Python, and thinking critically about how software agents should behave in practical scenarios.

What You'll Do

• Write, review, and evaluate Python code used to train and assess AI agentic systems
• Break down complex engineering tasks into structured steps and workflows
• Debug, refactor, and improve code to demonstrate best practices to AI systems
• Provide high-quality feedback on AI-generated code and reasoning
• Work on backend-style problems involving APIs, data processing, and system logic
• Help shape how AI agents approach real-world software engineering problems

What We're Looking For

• 2–8 years of professional software engineering experience (post college)
• Strong proficiency in Python
• Experience with backend systems, APIs, or data-driven applications
• Strong fundamentals in data structures, algorithms, and software design
• Ability to reason clearly about code quality, edge cases, and trade-offs
• Comfortable working independently with clear written communication

Nice to Have

• Experience with frameworks such as Django, Flask, or FastAPI
• Exposure to distributed systems or cloud infrastructure
• Prior experience evaluating or mentoring other engineers
• Interest in AI systems, developer tools, or human-in-the-loop training workflows

Why Join

• Contribute directly to the training of next-generation agentic AI systems
• Work with a top-tier AI lab through Mercor
• Competitive pay based on experience and contribution quality
• Opportunity to influence how AI learns real-world software engineering