# Harrison Renner

> I build things that go fast. Interested in teams that take efficiency seriously.

Location: New York, New York, United States
Profile: https://flows.cv/harrisonrenner

Systems engineer. I build things that go fast.

## Work Experience
### Founding Engineer @ Stealth Startup
Jan 2023 – Present
Built a Dex from zero. Matching engine, risk engine, oracle network, infra. The CLOB runs in Rust, fully on-chain, and handles 50k+ orders a second with sub-millisecond fills. The cross-margin risk engine has been through multiple major volatility events without down time.

### Lead Software Architect @ Coinbase
Jan 2020 – Jan 2023 | New York, United States
Came in to fix the matching engine and ended up rebuilding the whole thing in Rust.

### Staff Software Engineer @ Microsoft
Jan 2017 – Jan 2020
6x throughput improvement, 40% off memory at peak load. Brought in formal verification with TLA+ for consensus changes. Big distributed systems.

### Senior Software Engineer @ Tripadvisor
Jan 2015 – Jan 2017
Rebuilt the core processing backend when the business was scaling fast and the old system couldn't keep up

### Senior Software Engineer @ Expensify
Jan 2013 – Jan 2014

### Software Engineer @ comparethemarket.com
Jan 2009 – Jan 2012 | London Area, United Kingdom


## Education
### Master's Degree in Computer Science
University of Oxford

### Bachelor's degree in Computer Software Engineering
University of Oxford


## Contact & Social
- LinkedIn: https://linkedin.com/in/harrison-renner-7a8a691a9

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Source: https://flows.cv/harrisonrenner
JSON Resume: https://flows.cv/harrisonrenner/resume.json
Last updated: 2026-04-05