This project is suited for a Senior Python developer with deep functional testing experience, strong Linux and Docker skills, the ability to read code across multiple languages with the support of LLMs (e.C, Rust, Go) and translate requirements for migration tasks, and confidence using tools like Roo Code or Claude Code to accelerate iterative development.Key ResponsibilitiesCreate functional black box tests for large codebases in various source languages.Create and manage Docker environments to ensure 100% reproducible builds and test execution across different platforms.Leverage LLMs (Roo Code, Claude) to accelerate development cycles, automate repetitive tasks, and improve overall code quality.Requirements5+ years of experience as a Software Engineer (primarily Python). Deep experience with pytest (fixtures, session?box functional tests for CLI tools.Expert?level Docker skills (reproducible Dockerfiles, user contexts, secure workspaces).

Strong





Linux & Bash scripting skills and comfort debugging inside containers.Proficiency with modern Python tooling (uv, pyproject.Toml, packaging). Ability to read and understand many coding languages with LLMs (for example C, C++, Rust, or Go).

Experience using LLMs (Claude Code, Roo Code, Cursor) to accelerate iterative development and test?English language - B2 or higher.Tools and TechnologiesPython (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go (reading), Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor),, gcov, kcov.BenefitsFreelance project?Fully remote and versátil participation — choose when and how much to contribute hours per week). Each project has its own compensation level based on scope and expertise required. On this project, AI trainers earn up to $30 per hour equivalent.Opportunity to contribute to innovative AI projects for leading tech companies. xqysrnhSupportive global community.

📌 Senior Python Systems Developer - Functional Testing Project (Barcelona)
🏢 Mindrift
📍 Barcelona