Bas Van Opheusden
Member Of Technical Staff at OpenAI
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolBas Van Opheusden is a research-driven AI scientist and Member of Technical Staff at OpenAI with 10+ years of interdisciplinary experience at Princeton, NYU, Meta Reality Labs and Imbue, where he helped train and fine-tune large language models and built in-house evaluation pipelines. He combines a PhD in neuroscience and a Cum Laude background in physics and mathematics to study how human cognition and social structure shape learning, planning, and expertise, publishing in Science, PNAS, Nature Human Behavior and top AI venues. At Imbue he led large-scale human annotation efforts (500,000+ judgments) and linked ambiguity in prompts to LLM reasoning failures, while at Princeton he analyzed 3.3 billion chess games and ran the largest-ever interactive Mechanical Turk study of algorithm learning. Skilled at bridging experimental design, computational modeling and production ML systems, he focuses on using cognitive science to interpret and improve model internals and recommendations. Based in San Francisco, he brings a rare blend of rigorous empirical research and hands-on model engineering that surfaces non-obvious links between human decision strategies and model behavior.
10 years of coding experience
7 years of employment as a software developer
Doctor of Philosophy - PhD, Neuroscience, Doctor of Philosophy - PhD, Neuroscience at New York UniversityMaster of Science - MS, Physics, Cum Laude, Master of Science - MS, Physics, Cum Laude at Leiden University
Dutch, English
Stackoverflow
35reputation
7kreached
0answers
3questions
Github Skills (16)
reinforcement-learning9
dqn9
quest8
tensorflow7
adventure7
mingw-w646
initialization6
mex6
matlab6
latex6
python6
constructor6
matplotlib6
java5
ai4
Programming languages (2)
Github contributions (5)
basvanopheusden/bigpicture
May 2025 - May 2025
Contributions:108 PRs, 113 pushes, 61 branches in 8 days
basvanopheusden/basvanopheusden.github.io
Jul 2017 - Mar 2018
Contributions:120 commits, 3 PRs, 115 pushes in 8 months
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