Ben Rachbach
Machine Learning And Evaluation Product Manager
San Francisco Bay Area United States
Summary
👤
Senior🎓
Top SchoolBen Rachbach is a Machine Learning and Evaluation Product Manager with a decade of experience blending software engineering, research, and startup-building to improve how AI answers research questions. At Elicit he leads ML roadmap and a dedicated evaluation team that creates automated, high-fidelity evals—work that drove a ~78% precision improvement in search and underpins the product’s core data-extraction feature. He also designed evals and tasks for published research on iterated decomposition and has hands-on experience translating customer needs into ML specs and MVPs. Earlier roles range from technical PM and experimenter at Ought to leading engineering teams at Wonder Workshop, demonstrating a rare mix of product rigor, empirical research practice, and shipping production systems. Based in the Bay Area, he combines human-centered design instincts with a quantitative, experiment-driven approach to make AI outputs more accurate and vettable.
10 years of coding experience
3 years of employment as a software developer
Catalina Foothills High SchoolSoftware Engineering, Software Engineering at Hack ReactorB.A. with High Honors Chinese and Education Studies, B.A. with High Honors Chinese and Education Studies at Swarthmore College
Chinese, Spanish
Github Skills (29)
debugging10
prediction-model10
probabilistic-programming10
forecasting10
prediction10
jupyter-notebook10
recursive10
composition9
adafruit9
minecraft9
python9
nlp8
blockly8
makecode8
question-answering8
Programming languages (6)
Github contributions (5)
brachbach/host-files
Mar 2022 - Jul 2023
host files to link to
Contributions:1 PR, 39 pushes, 1 branch in 1 year 4 months
hostlink
brachbach/frontendCalendar
Aug 2016 - Jan 2019
Contributions:2 pushes, 1 branch in 2 years 5 months
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