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Ruben Fiszel

Founder

Founder at Windmill

Paris, Île-de-France, France

FoundedWindmill · YC

Find your path to Ruben

1,197 people in our graph share verified history with Ruben — schools, employers, funds. One of them is your warm intro.

Deep NisharunlockedRuben: together at Stanford University (2017)
×2Ruben: together at Stanford University
×8Ruben: together at Y Combinator
Ruben: together at The Johns Hopkins University

About

Ruben studied computer science at EPFL and conducted research on compiler design at Stanford. He has experience building distributed systems at Palantir, leading engineering at a multi-party computation startup, and contributing open-source projects. He now leads Windmill, an open-source workflow automation platform.

Founder at WindmillYC S22

Intro paths

YC

Ruben went through Y Combinator (Summer 2022) — 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 Windmill's batch and knows the company first-hand. YC profile ↗

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In turn, Ruben can intro founders to Windmill's investors below.

Windmill's investors · 2

Founder CollectiveCambridge · since 2026Y CombinatorSan Francisco · $500K checks · since 2022

Experience

  1. WindmillFoundercurrent2021 — presentParis, Île-de-France, France
  2. The Forecasting CompanyAngel Investorcurrent2025 — present
  3. MetriportAngel Investorcurrent2022 — present
  4. DepotAngel Investorcurrent2022 — present
  5. LagoAngel Investorcurrent2022 — present
  6. InpherSoftware Engineering Lead2019 — 2022
  7. Palantir TechnologiesSoftware Engineer2017 — 2019London Area, United Kingdom
  8. Skymind.io - Deep learning for IndustrySoftware Engineer Intern2016San Francisco Bay Area

Frequently asked questions

Who is Ruben Fiszel?
Ruben studied computer science at EPFL and conducted research on compiler design at Stanford. He has experience building distributed systems at Palantir, leading engineering at a multi-party computation startup, and contributing open-source projects. He now leads Windmill, an open-source workflow automation platform.
Where does Ruben Fiszel work?
Ruben Fiszel is Founder of Windmill.
What companies did Ruben Fiszel found?
Ruben Fiszel founded Windmill.
Where did Ruben Fiszel go to school?
Ruben Fiszel studied at Y Combinator; Stanford University (Visiting Student Researcher, CS); EPFL (Master of Science, Computer Science).

Founder mafias

Depot mafia2

Also came through, then founded or led a company.

Chris BrightVice President of RevenueFounded Zapproved

Same school

Shared employers