Find your path to Jeff
1,064 people in our graph share verified history with Jeff — schools, employers, funds. One of them is your warm intro.
About
Previously a senior machine learning engineer at Twitter and Automattic, with earlier ML work at Mercari and a stint as Founder-in-Residence at Foundations. He began his career at Stanford, working as a software engineer at the Center for the Study of Language and Information and as a research assistant in the Computer Graphics Laboratory.
Cofounder and CTO at JustAIYC W24
Intro paths
Jeff went through Y Combinator (Winter 2024) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Pete Koomen, General Partner at Y Combinator — the partner who ran JustAI's batch and knows the company first-hand. YC profile ↗
In turn, Jeff can intro founders to JustAI's investors below.
JustAI's investors · 3
Co-founders at JustAI

Frequently asked questions
- Who is Jeff Hara?
- Previously a senior machine learning engineer at Twitter and Automattic, with earlier ML work at Mercari and a stint as Founder-in-Residence at Foundations. He began his career at Stanford, working as a software engineer at the Center for the Study of Language and Information and as a research assistant in the Computer Graphics Laboratory.
- Where does Jeff Hara work?
- Jeff Hara is Cofounder and CTO of JustAI.
- What companies did Jeff Hara found?
- Jeff Hara founded JustAI.
Founder mafias
Y Combinator mafia10,454
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