Freelance Agent Evaluation Engineer

Job description

# Freelance Agent Evaluation Engineer > Mindrift · Spain (Remote) · Part-time · Posted 2026-09-10 **Workplace:** remote **Department:** English_HackerRank ## Description _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.** 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:** - 5+ years in software development - Core stack: Python (FastAPI), JavaScript/TypeScript (React), Docker, Postgres, Kafka, Redis - Experience writing tests (functional, integration) - English proficiency - B2+ **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. **Requirements and benefits** _**Educational qualifications**_ - A Master’s Degree in Computer Science, Software Engineering, Data Science / Data Analytics, Artificial Intelligence / Machine Learning, Computational Linguistics / Natural Language Processing (NLP), Information Systems or other related fields. - Bachelor’s degree is accepted if only candidate has 5 years of experience in the field. _**Academic and/or Professional Experience**_ Candidates should have a minimum of 3 years of professional experience in related roles or domain - specifically for QA-automation/testing or cybersecurity roles **How it works** Apply → Pass qualification(s) → Join a project → Complete tasks → Get paid **Compensation:** Paid per accepted task. Your rate depends on the qualification tier you reach and how efficiently you complete tasks — up to the equivalent of **$40/hr**. Because payment is per task, a faster pace raises your effective hourly rate. **Why this freelance opportunity might be a great fit for you?** - Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments. - Work on advanced AI projects and gain valuable experience that enhances your portfolio. - Influence how future AI models understand and communicate in your field of expertise. ## Apply [Apply at Mindrift](https://apply.workable.com/toloka-ai/j/DC6D239BC5/apply) --- Powered by [Workable](https://www.workable.com)