Senior Python Systems Developer - Functional Testing Project

OverviewMindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems.

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Participation is project-based, not permanent employment.About The RoleThis 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.ResponsibilitiesCreate functional black box tests for large codebases in various source languagesCreate and manage Docker environments to ensure 100% reproducible builds and test execution across different platformsMonitor code coverage and configure automated scoring criteria to meet industry benchmark-level standardsLeverage LLMs (Roo Code, Claude) to accelerate development cycles, automate repetitive tasks, and improve overall code qualityQualifications5+ years of experience as a Software Engineer (primarily Python)Deep experience with pytest (fixtures, session-scoped, timeouts) and designing black-box functional tests for CLI toolsExpert-level Docker skills (reproducible Dockerfiles, user contexts, secure workspaces)Strong Linux & Bash scripting skills and comfort debugging inside containersProficiency with modern Python tooling (uv, pyproject.toml, packaging)Ability to read and understand with LLM many coding languages (for example C, C++, Rust, or Go)Experience using LLMs (Claude Code, Roo Code, Cursor) to accelerate iterative development and test-case generationEnglish language

• B2 or higherRequirementsPrior experience with agent evaluation platforms and MCP CLITools 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.BenefitsWhat we can offerFreelance project-based collaboration via the Mindrift platform (powered by Toloka AI)Fully remote and flexible participation — choose when and how much to contribute (20-30 hours per week)Task-based compensation, equivalent to up to $30/hour
• depending on performance and volumeOpportunity to contribute to innovative AI projects for leading tech companiesSupportive global communityNote: Rates vary based on expertise, skills assessment, location, project needs, and other factors.

Higher rates may be offered to highly specialized experts. xlwpduy

Lower rates may apply during onboarding or non-core project phases.

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