Fundraising Fox

John Jeong

Founder

Co-founder, Co-CEO at Char

San Francisco, California, United States

FoundedChar Β· YC

About

John Jeong is co-founder and co-CEO of Char.

LinkedIn β†—X / Twitter β†—
Latest on 𝕏

John Jeong (JJ) πŸ‡°πŸ‡·πŸ‡ΊπŸ‡Έ @computeless

my childhood hero got fcked by bungie https://t.co/BRIb5iS0Sz

Aug 2, 2026 Β· β™₯ 1

John Jeong (JJ) πŸ‡°πŸ‡·πŸ‡ΊπŸ‡Έ @computeless

I don't know. I actually like using it in landscape mode. It reminds me of using old digital cameras, and I really like it. https://t.co/cR95MmfsMa

Aug 2, 2026

John Jeong (JJ) πŸ‡°πŸ‡·πŸ‡ΊπŸ‡Έ @computeless

https://t.co/z3ZMLa5zl5 / https://t.co/aK3gZnsE8H / https://t.co/3WSzczgcgf / char.notes is all ours. https://t.co/IGhtPjzAwg

Aug 2, 2026 Β· β™₯ 5

Co-founder, Co-CEO at CharYC S25

Intro paths

YC

John went through Y Combinator (Summer 2025) β€” any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Brad Flora, General Partner at Y Combinator β€” the partner who ran Char's batch and knows the company first-hand. YC profile β†—

β†’

In turn, John can intro founders to Char's investors below.

Char's investors Β· 1

Y Combinator

Co-founders at Char

DLDeokhaeng Lee
Deokhaeng LeeFounder
YLYujong Lee
Yujong LeeFounder

Experience

  1. CharCo-Founder, Co-CEOcurrent2024 β€” presentSan Francisco Bay Area
  2. Pado LabsCo-founder & CEO2023 β€” 2024San Francisco Bay Area
  3. Various StartupsProduct & GTM2021 β€” 2023
  4. Republic of Korea ArmySergeant, Mine Specialist & Squad Leader2017 β€” 2019Pocheon, Gyeonggi, South Korea

Education

  1. Y CombinatorS252025
  2. Seoul National UniversityBachelor of Science - BS, Nuclear Engineering2015 β€” 2022
  3. Sejong Science High School2013 β€” 2015
  4. Seoul National UniversityEntrepreneurship/Entrepreneurial Studies2020 β€” 2022

Same school

Also attended Y Combinator1,463

Akshat GoenkaInvestor at Moonfire VenturesJon XuGeneral Partner at Y CombinatorTed ChaiAssociate at Scale Venture PartnersLeo LuInvestor at Foundation CapitalMaroof AhmedFounder at Octopus VenturesYusuf SherwaniCo-Founder and CEO at Pelago; a Londoner living in New York City

+ 1,457 more

Also attended Seoul National University48

Byung Geon Rhee, PhDHead of Advisory Board at Adelphi Ventures Management, LlcKiha LeePartner at SazzeOhsang KwonPartner at SazzeUkjin (Jay) KwonPrincipal at SazzeIn Joon HwangManaging Partner / CEO at Z Venture CapitalJinKyung (Jinny) LeeVenture Operations at Samsung Next

+ 42 more

Shared employers

Also worked at Char2

Deokhaeng LeeFounder at CharYujong LeeFounder at Char

Also worked at Various Startups85

Laura BuhlerPartner, Head of Community at Felicis VenturesDaniel SimonVenture Partner at FJ LabsMichelle GonzalezCorporate Vice President and Global Head, M12 at M12 (Microsoft's Venture Fund)Shakhina PulatovaInvestor at Storm VenturesAileen AllenPartner at Mercury FundEran SavirFounder & Managing Partner at Savyon Ventures

+ 79 more

Also worked at Republic of Korea Army2

Eddie LeeGeneral Partner at White Star CapitalJunho JangCTO at Hyperithm