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Freelance Senior Python Developer - Functional Test Frameworks at Mindrift. Location Information: Anywhere in the World. . Headquarters:. Spain . URL:. . https://mindrift.ai/. . . Please submit your CV in English and indicate your level of English proficiency.. . Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. . Participation is project‐based as an independent freelance contributor and does not create an employment relationship with Toloka or our clients.. . What this opportunity involves . . As an independent freelance contributor, you choose which projects to join and how you organize your work, as long as deliverables meet the project requirements and deadlines.. . While each project involves unique tasks, contributors may: . . . Coordinate cross-language migration workflows by analyzing C/Rust/Go codebases to create behavioral tests and migration stubs for Rust targets. . . Design and implement black-box functional test frameworks (pytest + uv, Python 3.10) for native CLI projects. . . Built reproducible Docker evaluation images and CI pipelines for agent evaluation (Dagger/Codespaces), handling secure workspace setup and git submodule integration. . . Apply professional judgment to assess AI responses.. . . What we look for. . This opportunity is a good fit for senior software developers open to part-time, non-permanent projects. Ideally, contributors will have: . . . Degree in Computer Science, Software Engineering or related fields . . 5+ years in software development with at least 5 years in Python . . Familiarity with C, Rust, Go / confidence to read this code with LLM . . English proficiency - B2 . . Stable internet connection . . . How it works . . Apply → Pass qualification(s) → Select a project. → . Complete tasks on your own schedule within project timelines→ Get paid. . Project time expectations . . For this project, tasks are estimated to require around 10-20 hours of work per week during active phases, depending on the tasks you choose to complete. This is an estimate only and does not create any minimum or guaranteed hours.. . Payment . . . Paid freelance contributions, with rates that may be equivalent to . up to $80/hour*. (project‐ and task‐based). . Fixed project rate or individual rates, depending on the project . . Some projects include incentive payments . . . *Note: Rates vary based on expertise, skills assessment, location, project needs, and other factors. Higher rates may be offered to highly specialized experts. Lower rates may apply during onboarding or non-core project phases. Payment details are shared per project.. . To apply:. . https://weworkremotely.com/remote-jobs/mindrift-freelance-senior-python-developer-functional-test-frameworks.