Senior Python Engineer - AI Coding Agent Evaluation (Freelance)

Mindrift; Portugal; Presencial; EUR 108 576 - 180 960; Tempo integral

Resumo da oferta

Mindrift connects specialists with project-based AI opportunities for leading tech companies, focusing on testing, evaluating, and improving AI systems.

We are building a dataset to evaluate AI coding agents by designing tasks, environments, and tests, and by iterating based on QA feedback. This contract-based role is not permanent employment and emphasizes outcomes over long-term commitments.

Qualificações

• 8+ years in software development.
• Proficient with Python (FastAPI) and JavaScript/TypeScript (React).
• Experience writing functional and integration tests.
• English proficiency – B2+.

Responsabilidades

• 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

Conhecimentos

Software development

Python (FastAPI)

JavaScript/TypeScript (React)

Testing (functional & integration)

English (B2+)

Ferramentas

Docker

PostgreSQL

Kafka

Redis

Descrição da oferta de emprego

Mindrift Connects Specialists with Project‑Based AI Opportunities

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.

Responsibilities

• 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

Qualifications

• 8+ years in software development
• Core stack: Python (FastAPI), JavaScript/TypeScript (React), Docker, Postgres, Kafka, Redis
• Experience writing tests (functional, integration)
• English proficiency – B2+

Challenges

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

Effort estimate

Task Estimates

Tasks for this project are estimated to take 30 hours to complete, depending on complexity. This is an estimate and not a schedule requirement; you choose when and how to work. Tasks must be submitted by the deadline and meet the listed acceptance criteria to be accepted.

Compensation

Up to $150/hr equivalent, depending on level and pace. Tasks are estimated at ~30 hours each; you set your own schedule.