Senior Python Systems Developer (Remote, AI Testing)

Job summary

This role is for a Senior Python Systems Developer focused on functional testing within AI projects. The position involves creating and managing tests for large codebases and ensuring reproducible builds across platforms.

Qualifications

• Over 5 years of experience as a Software Engineer, primarily in Python.
• Proficient in English (B2 or higher).
• Experience with agent evaluation platforms and MCP CLI is a plus.

Responsibilities

• Develop functional black box tests for diverse source languages.
• Manage Docker environments for reproducible builds and test execution.
• Monitor code coverage and set automated scoring criteria to meet industry standards.
• Utilize LLMs to enhance development cycles and automate tasks.

Skills

• Expert in Docker, including creating reproducible Dockerfiles and secure workspaces.
• Strong Linux and Bash scripting skills, with debugging capabilities in containers.
• Familiarity with modern Python tooling and libraries (pytest, uv, etc.).
• Ability to read and understand multiple programming languages (C, C++, Rust, Go).

Tools

What we can offer

• Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go (reading), Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov.
• Freelance, project-based collaboration with flexible hours (20-30 hours per week).
• Competitive compensation based on project scope, with potential earnings up to $50 per hour.