Senior Python Systems Developer (Remote, AI Testing)

Job summary

This role is for a Senior Python Systems Developer with extensive experience in functional testing, focusing on AI systems. The position involves project-based work with a flexible schedule, allowing for remote participation.

Qualifications

• Over 5 years of experience as a Software Engineer, primarily using Python.
• Proficient in English at a B2 level or higher.
• Deep knowledge of pytest, particularly in creating black-box functional tests for CLI tools.
• Strong expertise in Docker, including creating reproducible Dockerfiles and managing secure workspaces.
• Solid Linux and Bash scripting skills, with the ability to debug within containers.
• Familiarity with multiple programming languages such as C, C++, Rust, or Go, and the ability to read code in these languages.
• Experience with LLMs like Claude Code and Roo Code for enhancing development processes.

Responsibilities

• Develop functional black box tests for large codebases in various programming languages.
• Create and manage Docker environments to ensure reproducible builds and test execution.
• Monitor code coverage and set automated scoring criteria to meet industry standards.
• Utilize LLMs to streamline development cycles and improve code quality.

Skills

• Expert-level skills in Docker and modern Python tooling (uv, pyproject.toml, packaging).
• Ability to leverage LLMs for test-case generation and iterative development.

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 of up to $50 per hour.
• Opportunity to work on innovative AI projects for leading tech companies within a supportive global community.