Ruben Fiszel

founder@windmill.dev - oss workflow engine & dev platform with no compromises

Founder

Windmill· Summer 2022 🇫🇷 Paris, Île-de-France, France

in LinkedIn

2025Angel Investor· The Forecasting Company

Founder · since 2021

Company

The Forecasting Company

Role

Angel Investor

current

Stage

—

no public source

Raised

—

no public source

Based

—

Founder / co-founder — the company's markEmployee / research role

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

Windmill

Open-source platform to turn scripts into internal apps & workflows

Summer 2022

Experience

Career

Windmill
Founder
Founder · Paris, Île-de-France, France · 2021 – Present
2021
The Forecasting Company
Angel Investor · 2025 – Present
2025
Metriport
Angel Investor · 2022 – Present
2022
Depot
Angel Investor · 2022 – Present
2022
Lago
Angel Investor · 2022 – Present
2022
Inpher
Software Engineering Lead · 2019 – 2022
2019
Palantir Technologies
Software Engineer · London, United Kingdom · 2017 – 2019
2017
Skymind.io - Deep learning for Industry
Software Engineer Intern · San Francisco Bay Area · 2016
2016

Bio

Ruben was top of his class MSc in CS at EPFL, did research on compilers from Scala to Hardware at Stanford, built the first open-source library for reinforcement learning for Java, , built distributed systems at scale at Palantir and ran the engineering team at a Multi-Party Computation startup. He is now building Windmill, an open-source alternative to Retool, Pipedream, Airplane that contains the infra to run it and that you can deploy at scale.