Find your path to Jon
3,706 people in our graph share verified history with Jon — schools, employers, funds. One of them is your warm intro.
Paul KwanunlockedJon: together at Stanford University (2008–2012)
.jpeg)
×11Jon: together at Stanford University
Cofounder at Preamble
Intro paths
→
In turn, Jon can intro founders to Preamble's investors below.
Preamble's investors · 1
Co-founders at Preamble
J
JeremyFounder
Experience
- Circadia HealthLead AI Engineercurrent2025 — present
- PreambleCo-Founder / Chief Product Officer / Lead ML Eng (Red Team)2021 — 2025
- PromptArmor (YC W24)LLM Threat Intel2024
- Campaign for Peace, Disarmament, and Common SecurityML Research Lead (DISARM:SIMC4)2019 — 2024
- Buildnow AIML Advisor, Backer2024
- Snap Inc.Co-Founder of Snap Lab / Advanced Technology Lead2014 — 2021
- Vergence LabsCo-Founder / Chief Science Officer2011 — 2014
Skills & more
Information SecurityPython (Programming Language)Machine LearningLarge Language Models (LLM)Artificial Intelligence (AI)EntrepreneurshipRoboticsManufacturingAugmented RealityElectrical EngineeringAltiumPython
+1 more
Genetic EngineeringFrom Jon's professional profile.
Frequently asked questions
- Who is Jon Cefalu?
- Cofounder at Preamble
- Where does Jon Cefalu work?
- Jon Cefalu is Cofounder of Preamble.
- What companies did Jon Cefalu found?
- Jon Cefalu founded Preamble.
- Where did Jon Cefalu go to school?
- Jon Cefalu studied at Stanford University (B.S., Computer Science with Honors).
Founder mafias
Stanford University mafia1,909
Also came through, then founded or led a company.
Peter ThielJ.D.Founded PayPal +1Reid HoffmanB.S.Founded LinkedIn +2David SacksB.A.Founded YammerKeith RaboisB.A.Founded OpendoorGarry TanBSFounded Y Combinator +1Joe LonsdaleBSFounded Opto +5
+ 1,902 more
Same school
Also attended Stanford University2,000
Peter ThielCo-founder & Partner at Founders FundReid HoffmanCo-founder of LinkedIn; Partner at GreylockDavid SacksCo-founder & General Partner at Craft Ventures; former White House AI & Crypto CzarKeith RaboisManaging Director at Khosla VenturesGarry TanPresident & CEO of Y CombinatorAlfred LinPartner at Sequoia Capital
+ 1,994 more
