About the job
We invite you to submit your CV in English along with your English proficiency level.
Mindrift serves as a bridge connecting specialists with project-oriented AI roles at esteemed tech firms, emphasizing the testing, evaluation, and enhancement of AI systems. This is a project-based opportunity, not a permanent position.
Role Overview
We are seeking a Senior Python Developer with substantial functional testing expertise, robust skills in Linux and Docker, and the ability to comprehend code in various programming languages (such as C, Rust, Go) with assistance from LLMs. You should be adept at translating requirements for migration tasks and utilizing tools like Roo Code or Claude Code to expedite iterative development.
Key Responsibilities
- Develop functional black-box tests for extensive codebases across multiple source languages.
- Establish and manage Docker environments to ensure completely reproducible builds and test executions across diverse platforms.
- Oversee code coverage and configure automated scoring criteria to align with industry-standard benchmarks.
- Utilize LLMs (Roo Code, Claude) to streamline development cycles, automate repetitive tasks, and enhance overall code quality.
Essential Qualifications
- Minimum of 5 years of experience as a Software Engineer, primarily focusing on Python.
- Extensive experience with pytest (including fixtures, session-scoped, timeouts) and designing black-box functional tests for CLI tools.
- Advanced Docker skills, including creating reproducible Dockerfiles and secure workspaces.
- Strong proficiency in Linux and Bash scripting, with comfort in debugging within containers.
- Expertise in contemporary Python tooling (uv, pyproject.toml, packaging).
- Ability to read and comprehend code in various languages (e.g., C, C++, Rust, Go) with the support of LLMs.
- Experience with LLMs (Claude Code, Roo Code, Cursor) to enhance iterative development and test-case generation.
- English proficiency at B2 level or higher.
Preferred Qualifications
- Previous experience with agent evaluation platforms and MCP CLI.
Technologies and Tools: 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.
Benefits of Joining Us
- Freelance project-based collaboration through the Mindrift platform (powered by Toloka AI).
- Complete flexibility for remote work — decide your contribution schedule (20-30 hours per week).
- Compensation based on tasks, reaching up to $30/hour* depending on performance and workload.
- Engage in cutting-edge AI projects for leading technology companies.

