Honglei Liu is a seasoned AI and machine learning leader with 11 years of experience building large-scale, production ML systems and data platforms across top tech companies and startups. As Co-Founder and CTO of Tofu, he now focuses on automating top-of-funnel growth for B2B marketing while drawing on deep product and infra expertise honed at Twitter, Facebook, Fast, and Affirm. He led teams that delivered mission-critical knowledge graph and assistant systems—powering billions of real-time predictions and contributing materially to revenue—and co-founded open-source projects used to drive tens of billions of decisions per day. Honglei combines research pedigree (PhD-level CS training) with hands-on engineering, shipping on-device NLP, reinforcement learning, recommendation, search, and streaming infrastructures at scale. Colleagues would note his rare mix of research rigor, product-first delivery, and the ability to turn complex ML research into reliable, revenue-generating services.
11 years of coding experience
5 years of employment as a software developer
Master's degree Computer Science, Master's degree Computer Science at Northeastern University (CN)
Doctor of Philosophy (Ph.D.) Computer Science, Doctor of Philosophy (Ph.D.) Computer Science at UC Santa Barbara
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