# Will Yin

> Will Yin is the co-founder and CEO of Mandolin, a San Francisco AI automation company building autonomous agents for specialty drug access. A Greenwich High School valedictorian and Stanford dropout, Yin previously co-founded Jupiter (YC-backed, $9M raised) before pivoting to healthcare. At Mandolin, he and co-founder Rohit Rustagi have raised $97M to automate the back-office workflows — prior auth, benefits verification, billing — that delay cancer and Alzheimer's patients from getting life-saving specialty therapies. Within months of launch, Mandolin deployed across 700+ clinics serving 250,000+ new patients annually.

- **Role:** CEO & Co-Founder at Mandolin
- **Organizations:** Mandolin, Jupiter, Y Combinator, Stanford University, Palantir Technologies, Virtualitics
- **From:** Greenwich, Connecticut, United States
- **Nationality:** American
- **Education:** High School Diploma (Valedictorian, US Presidential Scholar), Greenwich High School, Neuroscience, Computer Science, Mathematics (dropped out sophomore year), Stanford University, Biochemistry Research, MIT, Research Participant, Research Science Institute (RSI)
- **Known for:** Greenwich High School Class of 2017 Valedictorian, US Presidential Scholar, Presented diagnostic research at Nobel Prize ceremonies in Sweden

## Career timeline

- **2017** — Graduated Greenwich High School as class valedictorian and US Presidential Scholar
- **2017-2019** — Enrolled at Stanford University, studying neuroscience, computer science, and mathematics; conducted neurosurgery research at Stanford School of Medicine
- **2018** — Machine Learning Engineer at Virtualitics, Inc.
- **2018-2019** — Forward Deployed Engineer at Palantir Technologies
- **2019** — Dropped out of Stanford sophomore year to co-found Jupiter; accepted into Y Combinator
- **2019-2023** — Co-Founder, President & CTO at Jupiter — YC-backed retail food marketing platform raising $9M from Khosla, Canaan, NFX, and Y Combinator
- **2023** — Jupiter acquired/exited; began exploring healthcare AI
- **2024** — Co-founded Mandolin with Rohit Rustagi
- **2025-01** — Mandolin launched product; deployed across hundreds of clinics within weeks
- **2025-06** — Mandolin raised $40M Series A led by Greylock, bringing total funding to $97M; serving 700+ clinics and 250,000+ new patients annually

## Achievements

- Greenwich High School Class of 2017 Valedictorian
- US Presidential Scholar
- Presented diagnostic research at Nobel Prize ceremonies in Sweden
- Co-founded Jupiter (YC W19) and raised $9M from Khosla, Canaan, NFX, and Y Combinator
- Co-founded Mandolin and raised $97M total funding including $40M Series A led by Greylock
- Mandolin deployed at 700+ clinics serving 250,000+ new patients per year within months of launch
- Secured investment from Jerry Yang (Yahoo! co-founder) and Guillermo Rauch (Vercel CEO)

## Latest updates

- **2025-06** — Mandolin announced $40M Series A led by Greylock Partners, with participation from SignalFire, Maverick, SV Angel, Jerry Yang, and Guillermo Rauch
- **2025-06** — Mandolin reached 700+ clinic deployments serving 250,000+ new patients annually
- **2025-01** — Mandolin launched its AI automation platform for specialty drug workflows

## Links

- Website: https://willyin.com/
- LinkedIn: http://www.linkedin.com/in/wiyin
- Twitter/X: https://twitter.com/yinabled
- YouTube: https://www.youtube.com/watch?v=k7Al-R-m3qo

---

Profile page: https://yespress.io/will-yin
Published by YesPress — https://yespress.io
Last updated: 2026-05-13