ph3About The Role /h3 pThis 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.g., C, Rust, Go) and translate requirements for migration tasks, and confidence using tools like Roo Code or Claude Code to accelerate iterative development. /p h3Key Responsibilities /h3 ul liCreate functional black box tests for large codebases in various source languages. /li liCreate and manage Docker environments to ensure 100% reproducible builds and test execution across different platforms. /li liMonitor code coverage and configure automated scoring criteria to meet industry benchmark-level standards. /li liLeverage LLMs (Roo Code, Claude) to accelerate development cycles, automate repetitive tasks, and improve overall code quality. /li /ul h3Requirements /h3 ul li5+ years of experience as a Software Engineer (primarily Python). /li liDeep experience with pytest (fixtures, session‑scoped, timeouts) and designing black‑box functional tests for CLI tools. /li liExpert‑level Docker skills (reproducible Dockerfiles, user contexts, secure workspaces). /li liStrong Linux Bash scripting skills and comfort debugging inside containers.



/li liProficiency with modern Python tooling (uv, pyproject.toml, packaging). /li liAbility to read and understand many coding languages with LLMs (for example C, C++, Rust, or Go). /li liExperience using LLMs (Claude Code, Roo Code, Cursor) to accelerate iterative development and test‑case generation. /li liEnglish language - B2 or higher. /li /ul h3Additional Requirements /h3 ul liPrior experience with agent evaluation platforms and MCP CLI. /li /ul h3Tools and Technologies /h3 pPython (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. /p h3Benefits /h3 ul liFreelance project‑based collaboration via the Mindrift platform (powered by Toloka AI). /li liFully remote and flexible participation — choose when and how much to contribute (20-30 hours per week). /li liEach project has its own compensation level based on scope and expertise required. On this project, AI trainers earn up to $30 per hour equivalent. /li liOpportunity to contribute to innovative AI projects for leading tech companies. /li liSupportive integral community. /li /ul /p #J-18808-Ljbffr

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