Freelance Agent Evaluation Engineer

AI Chopping Block; España; On-site; PHP 2,787,296 - 3,969,785; Part time

Job summary

AI Chopping Block, located in Romblon, España, is looking for experienced software developers to help build a dataset for evaluating AI coding agents. This project focuses on creating realistic tasks and environments that challenge AI models and require deep understanding of software development principles.

Applicants should have over 5 years of experience, proficiency in Python and JavaScript, and strong test writing skills. Compensation is project-based at up to $40/hr depending on experience and performance.

Qualifications

• 5+ years in software development.
• Experience with Python, Docker, and JavaScript/TypeScript.
• Proficiency in writing tests (functional, integration).

Responsibilities

• Build realistic developer environments for task evaluation.
• Design tasks based on simulated environments.
• Write tests to validate AI solutions.
• Iterate on tasks based on feedback.

Skills

Software Development

Python (FastAPI)

JavaScript/TypeScript (React)

Docker

Postgres

Kafka

Redis

Test Writing

English Proficiency (B2+)

Job description

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

• 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.

How it works

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

Effort estimate

Tasks for this project are estimated to take 20 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 $40/hr equivalent, depending on level and pace. Tasks are estimated at ~20 hours each; you set your own schedule.