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Derek Modzelewski

Founder

Co-Founder and CTO at Rewbi

San Francisco, California, United States

FoundedRewbi · YC

30 Under 30 2026 · Energy & Green Tech

Find your path to Derek

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

Demi ObayomiunlockedDerek: together at The Johns Hopkins University (2014–2015)
×10Derek: together at The Johns Hopkins University
Derek: together at Adept AI Labs

About

Derek Modzelewski previously worked as an ML engineer at Meta on foundation models and served as an early technical hire at Adept, where he developed AI models. He holds a Master's degree in Computer Science and a B.S.E. in Computer Science and Applied Mathematics from Johns Hopkins University, and has roughly a decade of experience in energy commodity trading.

Co-Founder and CTO at RewbiYC S24

Intro paths

YC

Derek went through Y Combinator (Summer 2024) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Nicolas Dessaigne, General Partner at Y Combinator — the partner who ran Rewbi's batch and knows the company first-hand. YC profile ↗

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In turn, Derek can intro founders to Rewbi's investors below.

Rewbi's investors · 3

Aera VCSingapore · $25K – $5M checksOlive Tree CapitalBostonY CombinatorSan Francisco · $500K checks · since 2024

Co-founders at Rewbi

TMThomas Marge
Thomas MargeFounder

Experience

  1. RewbiCo-Founder and CTOcurrent2024 — presentSan Francisco Bay Area
  2. Adept AI LabsSoftware Engineer2022 — 2023
  3. MetaSoftware Engineer2018 — 2022
  4. GoogleSoftware Engineering Intern2017Greater New York City Area
  5. MicrosoftSoftware Engineering Intern2016Redmond, WA
  6. The Princeton FestivalDatabase Analyst2012 — 2014Princeton, NJ

Skills & more

Java1C1C++1Microsoft Excel1Programming1Android Development1

From Derek's professional profile.

Frequently asked questions

Who is Derek Modzelewski?
Derek Modzelewski previously worked as an ML engineer at Meta on foundation models and served as an early technical hire at Adept, where he developed AI models. He holds a Master's degree in Computer Science and a B.S.E. in Computer Science and Applied Mathematics from Johns Hopkins University, and has roughly a decade of experience in energy commodity trading.
Where does Derek Modzelewski work?
Derek Modzelewski is Co-Founder and CTO of Rewbi.
What companies did Derek Modzelewski found?
Derek Modzelewski founded Rewbi.
Where did Derek Modzelewski go to school?
Derek Modzelewski studied at The Johns Hopkins University (Master of Science - MS, Computer Science); The Johns Hopkins University (Bachelor's Degree, Computer Science); The Johns Hopkins University (Bachelor's Degree, Applied Mathematics and Statistics).

Founder mafias

Same school

Shared employers