Mathis Joffre
InvestorFounderFounder at Blaxel
San Francisco, California, United States
FoundedBlaxel · YC
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You →Amy · together at Ovhcloud (2021–2023) →Mathis
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About
Mathis Joffre is co-founder and engineering lead at Blaxel. He previously worked at OVHcloud on cloud systems and distributed compute architecture, and has experience with microVMs and large-scale network infrastructure tooling.
Founder at BlaxelYC X25
Intro paths
Mathis went through Y Combinator (Spring 2025) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Nicolas Dessaigne, General Partner at Y Combinator — the partner who ran Blaxel's batch and knows the company first-hand. YC profile ↗
In turn, Mathis can intro founders to Blaxel's investors below.
Blaxel's investors · 13
Co-founders at Blaxel






Experience
- BlaxelEngineering Foundercurrent2024 — presentSan Francisco, California, United States
- dotfair.ioFounder2023 — 2024Rennes, Bretagne, France
- OVHcloudSoftware Engineer2021 — 2024Rennes, Bretagne, France
- OVH US LLCAssociate Back-End Developer2023San Francisco, CA, USA
- Orange Business ServicesField Service Technician2019 — 2021Dijon, Bourgogne-Franche-Comté, France
Skills & more
+10 more
AlcatelTélécommunicationsAdministration réseauGoCloud ComputingArchitecture cloud-nativeApplications cloud nativesArchitecture de solutionAdministration systèmeGestion de projetLanguages English · French
- Certified Stormshield Network Administrator (CSNA) — Stormshield
- TOIEC : 970 — TOEIC Program
- Terraform Validation with Styra — Styra
- Microservice Authorization with Styra — Styra
- OPA Performance — Styra
- OPA Policy Authoring — Styra
- CCNA S4 — Cisco
- TOEIC : 945 — TOEIC Program
- CCNA S3 — Cisco
- CCNA S2 — Cisco
From Mathis's professional profile.
Investments
Per curated public sources.
Frequently asked questions
- Who is Mathis Joffre?
- Mathis Joffre is co-founder and engineering lead at Blaxel. He previously worked at OVHcloud on cloud systems and distributed compute architecture, and has experience with microVMs and large-scale network infrastructure tooling.
- Where does Mathis Joffre work?
- Mathis Joffre is Founder of Blaxel.
- What companies did Mathis Joffre found?
- Mathis Joffre founded Blaxel.
- What companies has Mathis Joffre invested in?
- Investments tracked here include Fabraix, Marengo.
- Where did Mathis Joffre go to school?
- Mathis Joffre studied at ESIR - Ecole Supérieure d'ingénieurs de Rennes (Master of Science); iUT Nord Franche-Comté (DUT, Network and Telecomunications).
Founder mafias
Y Combinator mafia10,601
Also came through, then founded or led a company.
Ovhcloud mafia9
Also came through, then founded or led a company.
Shared employers
Also worked at Blaxel4
Also worked at OVHcloud12
+ 6 more
Also worked at Orange Business Services29
+ 23 more
























