Fundraising Fox
Barnaby Malet
FounderFounder at machine0 · Founder at Upflow
Paris, Île-de-France, France
Foundedmachine0 · YCUpflow · YC
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Ask Nick Wijnberg to introduce you to Barnaby
You →Nick · together at Upflow (2024–2026) →Barnaby
Ask Jamie Chen to introduce you to Barnaby
You →Jamie · 9 people · together at YC S26 →Barnaby
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You →Sam · 2 people · together at YC W20 →Barnaby
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About
Barnaby Malet studied computer science at Imperial College London and is a two-time YC founder. He previously served as cofounder, CTO, and CPO at Upflow (W20) before founding machine0 (S26).
Founder at machine0YC S26
Intro paths
Barnaby went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Brad Flora, Backing expeditions into the future — the partner who ran machine0's batch and knows the company first-hand. YC profile ↗
In turn, Barnaby can intro founders to machine0's investors below.
Founder at UpflowYC W20
Intro paths
Barnaby went through Y Combinator (Winter 2020) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Brad Flora, Backing expeditions into the future — the partner who ran Upflow's batch and knows the company first-hand. YC profile ↗
In turn, Barnaby can intro founders to Upflow's investors below.
Upflow's investors · 11
Co-founders at Upflow
Experience
- machine0 (YC S26)Founder & CEOcurrent2026 — presentSan Francisco Bay Area
- UpflowCo-founder & Board Membercurrent2025 — present
- UpflowCo-founder & CTPO2018 — 2025Paris Area, France
- Hike MessengerSenior Product Manager2015 — 2017New Delhi Area, India
- MechioCo-founder2011 — 2015London, England, United Kingdom
- AppSparkSoftware Engineer2010 — 2011London, England, United Kingdom
- AppleSoftware Engineer2009London, England, United Kingdom
- Morgan StanleyAnalyst2008London, England, United Kingdom
- Imperial College LondonTeaching Assistant2007 — 2008London, England, United Kingdom
Skills & more
+4 more
Software EngineeringTeam LeadershipAgile MethodologiesUser Interface DesignLanguages English · French · German · Spanish
From Barnaby's professional profile.
Frequently asked questions
- Who is Barnaby Malet?
- Barnaby Malet studied computer science at Imperial College London and is a two-time YC founder. He previously served as cofounder, CTO, and CPO at Upflow (W20) before founding machine0 (S26).
- Where does Barnaby Malet work?
- Barnaby Malet is Founder of machine0 and Founder at Upflow.
- What companies did Barnaby Malet found?
- Barnaby Malet founded machine0, Upflow.
- Where did Barnaby Malet go to school?
- Barnaby Malet studied at Y Combinator (YC S26); Y Combinator (YC W20); Imperial College London (PhD, Cloud Computing).
Founder mafias
Y Combinator mafia10,595
Also came through, then founded or led a company.
Imperial College London mafia450
Also came through, then founded or led a company.
Apple mafia430
Also came through, then founded or led a company.
Upflow mafia3
Also came through, then founded or led a company.
Same school
Also attended Y Combinator2,000
+ 1,994 more
Shared employers
Also worked at Upflow5
Also worked at Hike Messenger7
+ 1 more
