Machine Learning Research Engineer — AI Training

Job overview

The Machine Learning Research Engineer — AI Training role is remote, with the posting identifying remote work and Mercor’s San Francisco headquarters. Compensation is $150–$200 per hour. The role supports a long-horizon AI research project connecting technical talent with leading AI research labs. The engineer develops challenging machine-learning engineering tasks focused on inference, evaluation, and systems work, and explains why the tasks challenge frontier models. The role contributes expert ideas to research evaluation without requiring the candidate to build or review the tasks personally.

What you'll do

• Develop challenging machine-learning engineering tasks for an AI research project
• design tasks that frontier models solve in no more than two of eight attempts
• focus on inference, evaluation, and systems work across GPU and CPU
• explain why problems are difficult for frontier models
• contribute ideas without necessarily building or reviewing tasks.

What we're looking for

Skills & competencies

machine learning research engineer

remote

mercor

$150–$200/hr

ai training

pytorch

jax

llms

gpu inference

reinforcement learning

scientific ml

ai evaluation

Work arrangement

• Weekend coverage required

Why this role

Focuses on inference, evaluation, and systems tasks rather than heavy model training; the posting describes remote contract work.

About the employer

Mercor is hiring for this role. Industry: Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology). Sector: 54.