Machine Learning Applied Scientist, Part-Time AI Evaluation - Remote (United States)

• $60–$120 per hour equivalent, paid per accepted task

• 100% remote

• Part-time

• About 15 hours a week, you choose when

Work on the cutting edge of machine learning, on your own schedule, and get paid for the technical expertise you already have.

The machine learning systems changing how technical work gets done are trained and tested by people who understand the field deeply. The teams building them need applied scientists who can create realistic engineering tasks, judge whether the model’s work is correct and efficient, write the implementation a strong practitioner would produce, and explain exactly where the result falls short. Your judgment helps shape the next generation of AI models and tools. This is that work, done remotely around your current job.

What you’ll do

• Create realistic machine learning tasks involving model development, data pipelines, numerical methods and inference systems

• Review model implementations and training workflows for correctness, performance and reproducibility

• Write expert solutions in Python, including the model components, evaluation logic and command-line workflows needed to solve each task

• Investigate numerical failures and system-level failures, then explain clearly why an AI coding agent’s result did not meet the requirements

Why this is worth your time

• Get paid the equivalent of $60–$120 an hour to build real AI skills, on top of your current job

• Work hands-on with training pipelines, inference systems and coding agents, checking AI results for correctness and speed

• Build practical experience in AI model evaluation, from numerical debugging to memory and throughput tuning

• Fully remote and flexible, no fixed shifts, no commute

Who this is for

• Graduate-level training in computer science and engineering; applied mathematics and statistics; machine learning; or artificial intelligence, with either a PhD or a master’s degree in a comparable quantitative field

• Strong machine learning experience from professional or research work, plus practical proficiency with Python

• Fluent in English

• No experience in AI training work needed. You bring the machine learning expertise; the work provides structured evaluation tasks and clear correctness criteria.

Pay and details

• $60–$120 per hour equivalent; pay is per accepted task, as an independent contractor

• About 15 hours a week, you choose when; fully remote, United States

How to apply

1. Apply on OpenTrain (upload your resume).

2. Complete a short application on the hiring platform.

3. If shortlisted, take a short AI interview with technical questions and a coding challenge.

Ready to put your machine learning expertise to work at the frontier of AI? Apply today.

About OpenTrain AI

OpenTrain AI connects experienced professionals with paid, part-time AI training work: shaping and improving the AI systems that companies are building right now.