# David Selinger

> David “Selly” Selinger is the co-founder and CEO of Deep Sentinel, which combines AI video screening with live human guards. A Stanford alumnus and former Amazon data-mining research leader, he co-founded Redfin and founded RichRelevance before turning to physical security following a home invasion in his neighborhood.

- **Role:** Co-Founder & CEO at Deep Sentinel
- **Organizations:** Deep Sentinel, Redfin, RichRelevance, Amazon, MyTwoFrontTeeth, Darfur Stoves Project / Potential Energy, Silicon Climate
- **Education:** Stanford University
- **Known for:** Co-founded Redfin and helped develop its mapping and real estate data analytics engine., Founded RichRelevance, whose retail clients included Macy’s and Office Depot., Led Amazon Customer Behavior Research and described helping develop its early advertising business.

## Career timeline

- **2003** — Joined Amazon from Stanford to run Customer Behavior Research, according to his first-person account.
- **2004** — Co-founded Redfin; served as founding CTO.
- **2006** — Founded RichRelevance, a retail personalization business.
- **2016** — Co-founded Deep Sentinel, incorporated that year.
- **2019** — Deep Sentinel was operating a residential beta from Pleasanton.
- **2025** — Deep Sentinel announced a $15 million Series B led by Egis Capital Partners; Selinger presented at the Embedded Vision Summit.

## Achievements

- Co-founded Redfin and helped develop its mapping and real estate data analytics engine.
- Founded RichRelevance, whose retail clients included Macy’s and Office Depot.
- Led Amazon Customer Behavior Research and described helping develop its early advertising business.
- Co-founded Deep Sentinel and led it through a $15 million Series B announced June 3, 2025.

## Latest updates

- **2026-09** — Appeared in a Modern CTO episode discussing physical security, recordings, and real-time intervention.
- **2025-11** — Spoke on KLCC’s Oregon On The Record about AI-assisted security, neighbors, lighting, and sightlines.
- **2025-06** — Deep Sentinel announced a $15 million Series B led by Egis Capital Partners.
- **2025-05** — Presented a knowledge-distillation tutorial at the Embedded Vision Summit; the recording was published in September.

## Links

- Website: https://www.deepsentinel.com/
- LinkedIn: https://www.linkedin.com/in/selly/
- Twitter/X: https://x.com/daveselinger

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Profile page: https://yespress.io/david-selinger
Published by YesPress — https://yespress.io
Last updated: 2026-10-13