Yu Lu
Co-Founder & CTO at Sweep (YC S23)
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolYu Lu is a founding research engineer and former co-founder/CTO who builds production-grade ML systems that bridge research and product. He led development and deployment of a cursor-level next-edit autocomplete shipped for JetBrains IDEs, training models with synthetic GitHub edit trajectories and RL to boost quality, and serving 500k autocompletes/day with <100ms e2e latency across three continents. At Datacurve he now runs the SWE RL environment pipeline used by tier‑1 labs and drove contract expansion through QA and throughput improvements. A Waterloo CS dropout with a Math Olympiad top‑50 background, he balances rigorous problem-solving with rapid product iteration—shipping a 25% PR merge-rate coding agent early in Sweep’s life and later pivoting to the dominant JetBrains plugin. He open-sourced model weights and writes about SFT & RL training, grounding his engineering in reproducible research and practical inference engineering.
7 years of coding experience
1 year of employment as a software developer
IB Diploma None, IB Diploma None at Winston Churchill High SchoolBachelor's degree Computer Science, Bachelor's degree Computer Science at University of Waterloo
English, Chinese, Japanese
Github Skills (200)
arabic-nlp10
code-generation10
llama-index10
github-app10
data-preprocessing10
autogpt10
neural-network10
nlp10
corenlp10
data-science10
text-classification10
dokku10
nodejs10
named-entity-recognition10
llm10
Programming languages (19)
Github contributions (5)
kevinlu1248/pyate
May 2020 - Apr 2022
PYthon Automated Term Extraction
Contributions:6 releases, 1 review, 169 commits in 1 year 11 months
nlpsymbolic-aiextractionpythonterm-extraction
sweepai/landing-page
Jun 2023 - Jul 2024
Contributions:41 reviews, 74 PRs, 136 pushes in 1 year 1 month
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