Fundraising Fox

Guillaume Genthial

Founder

Founder at Fragment

Paris, Île-de-France, France

FoundedFragment · YC

About

Guillaume Genthial is CTO at Fragment, a platform serving operations teams in financial services and insurance. He previously led AI initiatives at a KYC provider and held engineering roles focused on large language models in healthcare, recommendation systems at Criteo, and optical character recognition.

Founder at FragmentYC S23

Intro paths

YC

Guillaume went through Y Combinator (Summer 2023) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Aaron Epstein, General Partner at Y Combinator — the partner who ran Fragment's batch and knows the company first-hand. YC profile ↗

In turn, Guillaume can intro founders to Fragment's investors below.

Co-founders at Fragment

Experience

  1. SierraAgent Engineercurrent2026 — present
  2. Fragment (YC S23)Co-founder & CTO2023 — 2026
  3. MetaMapAI Lead2021 — 2022Paris, Île-de-France, France
  4. Criteo AI LabSenior Machine Learning Engineer2019 — 2021Paris, Île-de-France, France
  5. Roam AnalyticsNLP Engineer2018 — 2020San Mateo
  6. Stanford Machine Learning GroupResearch Assistant2017 — 2018
  7. Stanford UniversityCourse Assistant2017 — 2018
  8. ProxemResearch Intern2016Greater Paris Metropolitan Region
  9. OptionWeb Developer2015Santiago de Chile
  10. Marine NationaleInternship2013 — 2014French Navy, patrol boat La Capricieuse, French Guyana, The Caribbean.

Skills & more

Python7Tensorflow1TheanoC++2PHPMatlabLaTeXHTML5CSSJavaAngularJSMachine Learning9
+12 moreNatural Language ProcessingIntelligence artificielleDeep LearningAIApplied MathematicsMathématiques appliquéesStatistical LearningApprentissage automatiqueModélisation financièreBig dataPhysiquePhilosophie

Languages Allemand · Anglais · Espagnol · Français

From Guillaume's professional profile.

Frequently asked questions

Who is Guillaume Genthial?
Guillaume Genthial is CTO at Fragment, a platform serving operations teams in financial services and insurance. He previously led AI initiatives at a KYC provider and held engineering roles focused on large language models in healthcare, recommendation systems at Criteo, and optical character recognition.
Where does Guillaume Genthial work?
Guillaume Genthial is Founder of Fragment.
What companies did Guillaume Genthial found?
Guillaume Genthial founded Fragment.
Where did Guillaume Genthial go to school?
Guillaume Genthial studied at Stanford University (Master of Science (M.Sc.), Computational and Mathematical Engineering); École Polytechnique (Master of Science (M.Sc.), Applied Mathematics); University of Paris I: Panthéon-Sorbonne (Licence 3, Philosophie).

Founder mafias

Y Combinator mafia8,773

Also came through, then founded or led a company.

+ 8,766 more

Stanford University mafia903

Also came through, then founded or led a company.

+ 896 more

École Polytechnique mafia70

Also came through, then founded or led a company.

+ 63 more

Lycée Sainte-Geneviève mafia20

Also came through, then founded or led a company.

+ 13 more

University of Paris I: Panthéon-Sorbonne mafia13

Also came through, then founded or led a company.

+ 6 more

Same school

Shared employers