About us
Founded by Joe Lee.
Joe Lee founded Hosaka Labs to bring production AI to operations that run on many systems and many decisions.
Founder
Joe Lee
Applied AI and machine learning builder
He has spent a decade taking machine learning from prototype to production: predictive maintenance at Uptake, client models at McKinsey & Company, and investment decision support at Revantage, a Blackstone company.
Since then he has been the founding technical leader at two venture-backed startups, building valuation models, agentic LLM systems and MCP integrations used by institutional investment teams. He has taught Python for data analysis to graduate students at Columbia University.
Focus
- Agentic systems and MCP
- Forecasting, valuation and elasticity models
- Geospatial and Bayesian machine learning
- ML pipelines on AWS and Azure
Education
- University of California, Berkeley · Master of Information and Data Science
- Northwestern University · B.S. Biomedical Engineering, minor in Computer Science
Teaching
- Columbia University, School of Professional Studies · Adjunct Associate
- NYC Data Science Academy · Adjunct Instructor
Patents
- Two U.S. patent applications: automated valuation with Bayesian statistics and geospatial partitioning, and simplifying geospatial datasets for asset monitoring.
Career
Where the work comes from.
- 2025 to presentForty5ParkCo-founder and Chief Data Scientist
- 2021 to 2024Haystacks.aiFounding Data Scientist
- 2020 to 2021Revantage, a Blackstone companySenior Associate, Applied Machine Learning
- 2018 to 2020McKinsey & CompanySenior Data Scientist
- 2016 to 2018UptakeSenior Data Scientist