Remote Senior Software Engineer — RL Environment Designer

YO AI Labs; Los Angeles (CA); Remote; USD 40,000 - 70,000; 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 complex software tasks using MCP tools.

You will design reproducible environments, deterministic verification, and reference solutions for tasks such as bug fixing, feature implementation, codebase refactoring, and performance optimization. Remote work from the United States is supported for this contractor role.

Qualifications

• Strong proficiency in Python 3, Java, Rust, C++, or TypeScript.
• Strong 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.

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 use MCP tools effectively.
• Develop realistic, reproducible software engineering scenarios.
• Ensure tasks accurately measure coding ability, problem-solving, and tool usage.
• Document solutions and provide clear technical feedback.

Skills

Python 3

Java

Rust

C++

TypeScript

Algorithms & DS

Bug fixing

Feature implementation

Code refactoring

Performance optimization

Communication

Attention to detail

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 complex software tasks using MCP tools.

You will design reproducible environments, deterministic verification, and reference solutions for tasks such as bug fixing, feature implementation, codebase refactoring, and performance optimization. Remote work from the United States is supported for this contractor role.