Build production ML systems for measuring, predicting, and scaling data quality for frontier AI models. Requires 3-6 years experience in applied ML or related production systems (ranking, recommendations, data quality, fraud) plus strong software engineering skills.
200k – 300k/yr
On-site3+ YOEML Engineering
Environment Engineers
AfterQuerySan Francisco, CA
Designs datasets, evaluation rubrics, and reward signals for RLHF/RLVR pipelines to expose model failure modes and improve frontier AI capabilities. Partners with AI labs; requires 1-4 YOE and passion for data-driven model behavior.
180k – 220k/yr
On-site1+ YOEML Engineering
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Machine Learning Engineer
AfterQuerySan Francisco, CA
Build production ML systems for measuring, predicting, and scaling data quality for frontier AI models. Requires 3-6 years experience in applied ML or related production systems (ranking, recommendations, data quality, fraud) plus strong software engineering skills.
200k – 300k/yr
On-site3+ YOEML Engineering
Environment Engineers
AfterQuerySan Francisco, CA
Designs datasets, evaluation rubrics, and reward signals for RLHF/RLVR pipelines to expose model failure modes and improve frontier AI capabilities. Partners with AI labs; requires 1-4 YOE and passion for data-driven model behavior.