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Nathan Leung is the CTO of Harbor, a clinical trial software company founded in 2025. With experience building end-to-end systems at various technology startups in San Francisco and New York, he brings skills in frontend, backend, database, and infrastructure engineering.
Who is Nathan Leung?
Nathan Leung, the CTO of Harbor, has a unique background that led to this role. He began his career at Google, where he built tools on the Google Home team. He then built full-stack systems in San Francisco as the first employee at Jupiter, a Y Combinator-backed startup. Later, he joined Ramp, a financial technology company in New York, where he worked on the corporate card product team. After that, he joined Caldera, a blockchain infrastructure company backed by Sequoia and Founders Fund, where he wrote critical smart contracts to secure company assets. At Harbor, he has built innovative software to bring secure, compliant AI to clinical trial workflows.
Work History
Nathan Leung has held many positions across the technology industry since starting his career:
- Google - Engineering (2019 to 2019)
- Jupiter (YC S19) - Engineering (2019 to 2020)
- Ramp - Engineering (2021 to 2021)
- Caldera - Engineering (2024 to 2025)
- Harbor - CTO (2025 to Present)
Education History
Nathan Leung’s unique educational journey laid the roots for his career in technology. He studied computer science at The University of Michigan and pure mathematics at the University of California, Los Angeles. In addition, he spent four months living in South America in Argentina and Chile as part of the University of California Education Abroad Program (UCEAP).
When did Nathan Leung found Harbor?
Nathan Leung founded Harbor in 2025. Harbor builds innovative, compliant, and secure software to run clinical trials more efficiently. Their first product is an AI-powered system-of-record, or EDC (electronic data capture) system that automates the transformation of clinical source data into a verified, compliant, FDA-ready package. The software automatically generates eCRFs and source documents from clinical trial protocols, automates source data entry to enable truly remote monitoring, and ensures full 21 CFR Part 11 compliance.
