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About
Brecht Pierreux worked as an engineer at SpaceX and NASA's Jet Propulsion Laboratory before founding Macadamia, which develops AI tools for technical problem-solving.
CTO at MacadamiaYC W25
Intro paths
Brecht went through Y Combinator (Winter 2025) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Aaron Epstein, General Partner at Y Combinator — the partner who ran Macadamia's batch and knows the company first-hand. YC profile ↗
In turn, Brecht can intro founders to Macadamia's investors below.
Macadamia's investors · 1
Co-founders at Macadamia
Frequently asked questions
- Who is Brecht Pierreux?
- Brecht Pierreux worked as an engineer at SpaceX and NASA's Jet Propulsion Laboratory before founding Macadamia, which develops AI tools for technical problem-solving.
- Where does Brecht Pierreux work?
- Brecht Pierreux is CTO of Macadamia.
- What companies did Brecht Pierreux found?
- Brecht Pierreux founded Macadamia.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
ETH Zürich mafia246
Also came through, then founded or led a company.
Caltech mafia192
Also came through, then founded or led a company.
Delft University of Technology mafia122
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Macadamia's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights