About the job
Please submit your CV in English and specify your English proficiency level.
Mindrift connects talented professionals with project-based AI opportunities at top technology firms, focusing on the testing, evaluation, and enhancement of AI systems. This is a project-based engagement and not a permanent position.
Role Overview
We are seeking a seasoned Python developer with extensive experience in functional testing, strong Linux and Docker expertise, and the capability to read and interpret code across various programming languages with the assistance of LLMs (e.g., C, Rust, Go). The ideal candidate will adeptly translate requirements for migration tasks and confidently utilize tools such as Roo Code and Claude Code to expedite iterative development.
Key Responsibilities
- Develop and execute functional black box tests for significant codebases in multiple source languages
- Establish and maintain Docker environments to guarantee 100% reproducible builds and test executions across diverse platforms
- Oversee code coverage and configure automated scoring criteria to meet industry benchmark standards
- Utilize LLMs (Roo Code, Claude) to enhance development cycles, automate repetitive tasks, and elevate overall code quality
Qualifications
- 5+ years of experience as a Software Engineer, predominantly with Python
- In-depth experience with pytest (fixtures, session-scoped, timeouts) and designing black-box functional tests for CLI tools
- Proficient in Docker (reproducible Dockerfiles, user contexts, secure workspaces)
- Strong skills in Linux & Bash scripting and debugging within containers
- Expertise in modern Python tooling (uv, pyproject.toml, packaging)
- Ability to read and comprehend various coding languages (for example, C, C++, Rust, or Go) using LLMs
- Experience with LLMs (Claude Code, Roo Code, Cursor) for accelerating iterative development and generating test cases
- English language proficiency - B2 level or higher
Preferred Qualifications
- Previous experience with agent evaluation platforms and MCP CLI
Tools and Technologies: 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.
What We Offer
- Freelance project-based collaboration through the Mindrift platform (powered by Toloka AI)
- Fully remote and flexible engagement — choose your hours and workload (20-30 hours per week)
- Task-based compensation, up to $24/hour* based on performance and volume
- Opportunity to contribute to groundbreaking AI projects for leading tech companies.

