Fundraising Fox
🦊/People
Sign in

Seiji Yamamoto

Founder

Founder at PerfectBit, Inc.

San Francisco Bay Area

FoundedPerfectBit, Inc. · YC

Find your path to Seiji

712 people in our graph share verified history with Seiji — schools, employers, funds. One of them is your warm intro.

Ken ChenaultunlockedSeiji: together at Facebook (2018–2019)
×8Seiji: together at Facebook
×2Seiji: together at Salesforce
Seiji: together at UBS

About

Seiji Yamamoto spent nine years at Meta as a Senior Staff Research Scientist, focusing on large language model development, inference optimization, speech models, and computer vision. He holds a PhD in Physics with published research in top-tier journals and completed postdoctoral work at a national laboratory.

Founder at PerfectBit, Inc.YC X26

Intro paths

YC

Seiji went through Y Combinator (Spring 2026) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Garry Tan, President & CEO of Y Combinator — the partner who ran PerfectBit, Inc.'s batch and knows the company first-hand. YC profile ↗

→

In turn, Seiji can intro founders to PerfectBit, Inc.'s investors below.

PerfectBit, Inc.'s investors · 3

Imagination CapitalNew York · $100K – $150K checksY CombinatorSan Francisco · $500K checks · since 2026ZAKA VCSan Francisco

Co-founders at PerfectBit, Inc.

PVPeter Vajda
Peter VajdaFounder

Experience

  1. PerfectBitco-Founder and co-CEOcurrent2025 — presentSan Francisco Bay Area
  2. MetaResearch Scientist Manager (Senior Staff)2023 — 2025San Francisco Bay Area
  3. MetaEngineering Manager2020 — 2023San Francisco Bay Area
  4. SalesforceDirector of Engineering2019 — 2020San Francisco Bay Area
  5. FacebookNews Feed (ranking and recommendations)2016 — 2019Menlo Park
  6. Grand Rounds, Inc.Various roles2015 — 2016San Francisco
  7. Palantir TechnologiesForward Deployed team and later product team2013 — 2015Palo Alto, Chicago, New York, London, Paris
  8. UBSInvestment Strategy2013Greater New York City Area
  9. National High Magnetic Field LaboratoryPostdoctoral Associate2009 — 2011Tallahassee, Florida Area

Skills & more

Deep Learning

From Seiji's professional profile.

Frequently asked questions

Who is Seiji Yamamoto?
Seiji Yamamoto spent nine years at Meta as a Senior Staff Research Scientist, focusing on large language model development, inference optimization, speech models, and computer vision. He holds a PhD in Physics with published research in top-tier journals and completed postdoctoral work at a national laboratory.
Where does Seiji Yamamoto work?
Seiji Yamamoto is Founder of PerfectBit, Inc..
What companies did Seiji Yamamoto found?
Seiji Yamamoto founded PerfectBit, Inc..
Where did Seiji Yamamoto go to school?
Seiji Yamamoto studied at Stanford University (Bachelor of Science - BS, Physics); Rice University (Doctor of Philosophy - PhD, Physics); Columbia University (Master of Science - MS, Financial Engineering).

Founder mafias

Same school

Shared employers