> Markdown version of [/jobs/ext/4283988-ml-researcher](https://www.wearedevelopers.com/jobs/ext/4283988-ml-researcher). 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). --- # ML Researcher - **Company:** Monarch - **Location:** Emeryville, CA, United States - **Contract:** Permanent contract - **Skills:** Python (Programming Language), Machine Learning, Software Tools, Reinforcement Learning - **Published:** October 31, 2026 - **Apply:** https://www.adzuna.com/details/5883297576 ## About the Role * Ph.D. or equivalent research record in machine learning, statistics, computational science, or a closely related field * Demonstrated ability to formulate open-ended research questions, build strong baselines, and design evaluations that survive distribution shift * Strong software skills in Python and a modern machine-learning framework * Experience working with noisy, limited, multimodal, or experimentally generated datasets * Ability to move between theory, implementation, and scientific interpretation Desired Attributes * Experience with active learning, Bayesian optimization, reinforcement learning, causal inference, or scientific foundation models * Experience in molecular discovery, biology, animal behavior, robotics, or another domain where models learn from physical experiments * Track record of prospective validation rather than benchmark-only research * Strong research taste and comfort abandoning an attractive idea when the evidence does not support it ## Description * Research models that combine molecular information, formulation and dose, assay metadata, video-derived behavior, and laboratory context * Develop active-learning and sequential experiment-selection methods that balance predicted efficacy, uncertainty, novelty, and information value * Define retrospective and prospective evaluations, including holdouts by chemical scaffold, laboratory, colony, and time * Investigate which behavioral signals generalize across experiments and which reflect confounding, measurement noise, or laboratory-specific effects * Translate model failures into new labels, assay variants, controls, or experiments that improve the next training cycle * Communicate results with enough precision that experimental scientists can understand why a recommendation should or should not be trusted