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

What This Opportunity Involves

We're building a dataset to evaluate AI coding agents - how well a model handles real-world developer tasks. You'll create challenging tasks and evaluation criteria within realistic simulated environments: Build realistic developer environments - a virtual company with codebase, infrastructure, and context (tickets, docs, conversations) that forms a believable development history

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

Write tests that verify agent solutions - accept all valid approaches and reject incorrect ones, neither too strict nor too lenient

Iterate on tasks and tests based on QA feedback - review agent solutions, analyze failures, and refine until the evaluation is fair and robust What This Is NOT Not data labeling

Not prompt engineering

Not writing code from scratch - the agent writes most of the code; you guide and evaluate What we look for - You must meet all the requirements in order to be considered for this project: 5+ years of professional experience with Python.

Strong experience with FastAPI, pytest, and async/await.

Hands-on experience with Docker,



PostgreSQL, and CI/CD pipelines.

Proven experience writing and maintaining automated tests (not just executing them).

Full-stack experience with React and TypeScript is a plus.

English proficiency at B2 level or higher.

Availability to work 30+ hours per week. Why this is hard 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.

How It Works

Apply → Pass qualification(s) → Join a project → Complete tasks → Get paid Hiring & Onboarding Process The process is designed to move quickly and typically includes the following steps: App review and invitation to a virtual project introduction session (approximately 30 minutes)

Platform registration and identity verification

Technical assessment (approximately 35 minutes)

Background check (completed at no cost to candidates)

Onboarding and project-specific training tasks

Begin production work!

Additional Requirements

Willingness to complete identity verification as part of the onboarding process.

Ability to complete a technical assessment.

Willingness to join and participate in Discord, which will be used for project communication and updates.

Successful completion of a background check is required prior to onboarding.

Reliable internet connection and ability to communicate effectively in a remote environment.

📌 Senior Software Engineer (Python) - Agent Evaluation - Freelance/Remote 100+ openings (Argentina)
🏢 Braintrust
📍 Argentina