Senior Software Engineer (Python) - Agent Evaluation - Freelance/Remote 100+ openings

***This opportunity is intended for experienced Senior Python Engineers only****

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\n Open to candidates in the North America, South America, Asia and Europe.
Please submit your CV in English and indicate your level of English proficiency.

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Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment.

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What this opportunity involves

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We're building a dataset to evaluate AI coding agents - how well a model handles real-world developer tasks.

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You'll create challenging tasks and evaluation criteria within realistic simulated environments:

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• Build realistic developer environments - a virtual company with codebase, infrastructure, and context (tickets, docs, conversations) that forms a believable development history
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• Design tasks from intermediate states of these environments - craft the prompt, define what "solved" means, and ensure the task is solvable by an AI agent
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• Write tests that verify agent solutions - accept all valid approaches and reject incorrect ones, neither too strict nor too lenient
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• Iterate on tasks and tests based on QA feedback - review agent solutions, analyze failures, and refine until the evaluation is fair and robust
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What this is NOT

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• Not data labeling
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• Not prompt engineering
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• Not writing code from scratch - the agent writes most of the code; you guide and evaluate
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What we look for - You must meet all the requirements in order to be considered for this project:

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• 5+ years of professional experience with Python.
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• Strong experience with FastAPI, pytest, and async/await.
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• Hands-on experience with Docker, PostgreSQL, and CI/CD pipelines.
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• Proven experience writing and maintaining automated tests (not just executing them).
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• Full-stack experience with React and TypeScript is a plus.
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• English proficiency at B2 level or higher.
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• Availability to work 30+ hours per week.
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Why this is hard

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Frontier models are already good at coding. Creating a task that genuinely challenges the best models is non-trivial. You need to deeply understand where models fail and what scenarios reveal the difference between a good and a bad solution. Tasks have many valid solutions - writing tests that accept all correct solutions and reject incorrect ones is harder than it sounds.

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How it works

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Apply → Pass qualification(s) → Join a project → Complete tasks → Get paid

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Hiring & Onboarding Process\n

The process is designed to move quickly and typically includes the following steps:

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1. App review and invitation to a virtual project introduction session (approximately 30 minutes)
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2. Platform registration and identity verification
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3. Technical assessment (approximately 35 minutes)
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4. Background check (completed at no cost to candidates)
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5. Onboarding and project-specific training tasks
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6. Begin production work!
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Additional Requirements\n

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• Willingness to complete identity verification as part of the onboarding process.
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• Ability to complete a technical assessment.
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• Willingness to join and participate in Discord, which will be used for project communication and updates.
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• Successful completion of a background check is required prior to onboarding.
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• Reliable internet connection and ability to communicate effectively in a remote environment.
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