> Markdown version of [/jobs/ext/3680799-machine-learning-expert](https://www.wearedevelopers.com/jobs/ext/3680799-machine-learning-expert). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Machine Learning Expert - **Company:** Mercor, Inc. - **Location:** San Francisco, CA, United States (Remote available) - **Salary:** $145,600.0 - $249,600.0 - **Contract:** Permanent contract - **Skills:** Training Data, Artificial Intelligence, Machine Learning, Machine Learning Operations - **Published:** October 11, 2026 - **Apply:** https://www.juju.com/job/16_bc56e854 ## About the Role Must-Have * Professional experience training, evaluating, or deploying machine learning systems. * Clear written communication skills for explaining reasoning. * Comfort with ambiguous tasks and willingness to flag unclear instructions. ## Description * Write modeling problems from systems you have shipped, including data, objectives, constraints, and reference answers for model grading. * Grade model-written training and evaluation code, ensuring loss matches objectives, and evaluating set integrity. * Flag models proposing approaches that might fail in production due to distribution shift, label noise, or incorrect metric rewards. * Work independently and asynchronously to meet deadlines while improving AI model performance. * Collaborate with AI research teams to enhance training data quality and downstream performance.