# Sam W.

> Staff Software Engineer at Coinbase

Location: Miami, Florida, United States
Profile: https://flows.cv/samw

I build AI platforms that change how engineers work. I'm most energized by zero-to-one work: seeing whitespace, building the platform, and scaling it until it becomes infrastructure. Currently exploring what's next.

## Work Experience
### Staff Software Engineer - AI Tools @ Coinbase
Jan 2023 – Present | San Francisco, California
- Invented RAID (AI PR Reviewer) and scaled to review 6,000 PRs/week, saving $13.2M/year in engineering time and preventing countless incidents.
- Invented cbcode, the company's agentic CLI platform, reaching 800 weekly active users consuming 65M tokens/week.
- Invented Sail, reducing PR time-to-merge by 77% (11h -> 2.5h) by classifying PRs by risk and automating low-risk approvals.
- Founded the AI Tools team (10 engineers) as its first Tech Lead; served as acting Engineering Manager.
- Drove adoption of AI-assisted development across the majority of engineers company-wide.

### Senior Software Engineer @ Coinbase
Jan 2018 – Jan 2023 | San Francisco, California
- Shipped over-the-air updates for the mobile app, reducing app update pipeline from days to minutes.
- Served as original tech lead of Coinbase One (Coinbase subscription service), scaling from 0 to $50M ARR.
- Served as tech lead of the email and push notification service.

### Growth Lead @ Thunder Token, Inc.
Jan 2018 – Jan 2018 | San Francisco Bay Area

### Lead Growth Engineer @ App Academy
Jan 2016 – Jan 2018 | San Francisco Bay Area
- Managed a team of three engineers to develop a machine-learning-driven sales lead prioritization strategy.
- Built scoring algorithms using XGBoost and Latent-Dirichlet allocation, reducing dismissal rates by improving the quality of enrollees.

### Executive Director @ Global21
Jan 2011 – Jan 2012 | New Haven


## Education
### Bachelor of Arts (BA) in Comparative Literature
Yale University
Jan 2009 – Jan 2013


## Contact & Social
- LinkedIn: https://linkedin.com/in/wintersamuel
- Website: https://relaychat.app

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Source: https://flows.cv/samw
JSON Resume: https://flows.cv/samw/resume.json
Last updated: 2026-03-22