Senior Backend Engineer for AI RL Environments (Remote)

YO AI Labs; San Francisco (CA); Remote; USD 83,000 - 165,000; Part time

Job summary

YO AI Labs is seeking a Senior Software Engineer to support an AI training project by building reinforcement learning environments that evaluate models on software tasks using MCP tools.

Responsibilities include designing reproducible environments, deterministic verification, and reference solutions for bug fixing, feature development, refactoring, and performance optimization. Remote, contractor role with flexible hours. No prior AI experience required.

Qualifications

• Strong proficiency in Python 3, Java, Rust, C++, or TypeScript.
• Solid understanding of algorithms and data structures.
• Experience with bug fixing and debugging complex software issues.
• Proven experience in feature implementation and codebase refactoring.
• Strong knowledge of performance optimization and tuning.
• Excellent written and verbal communication.
• Strong attention to detail.

Responsibilities

• Create reinforcement learning environments for software engineering tasks.
• Design tasks involving bug fixing, feature development, refactoring, and performance optimization.
• Build deterministic verification systems and golden reference solutions.
• Evaluate AI agents' ability to reason through complex codebases and MCP tools.
• Develop realistic, reproducible software engineering scenarios.
• Document solutions and provide clear technical feedback.

Skills

Programming languages

Algorithms & DS

Bug fixing

Refactoring

Performance tuning

Communication

Detail oriented

Job description

YO AI Labs is seeking a Senior Software Engineer to support an AI training project by building reinforcement learning environments that evaluate models on software tasks using MCP tools.

Responsibilities include designing reproducible environments, deterministic verification, and reference solutions for bug fixing, feature development, refactoring, and performance optimization. Remote, contractor role with flexible hours. No prior AI experience required.