Fundraising Fox

Sasha Collin

Founder

CPO at Lemrock

Greater Paris Metropolitan Region

FoundedLemrock

About

Sasha is a returning Y Combinator founder whose background combines artificial intelligence engineering with product leadership. He has developed AI agents and personalization models for major consumer companies, with hands-on experience in large language models and agentic pipelines.

CPO at Lemrock

Intro paths

→

In turn, Sasha can intro founders to Lemrock's investors below.

Lemrock's investors · 5

AgoranovParisEntrepreneur FirstBengaluru · $1M – $7M checksSie VenturesLondonSonorcapParisTranspose Platform ManagementHouston

Co-founders at Lemrock

RL
Roxane LaigleCEO
CNClément Nguyen
Clément NguyenCTO

Experience

  1. LemrockCo-Foundercurrent2025 — presentParis, Île-de-France, France
  2. Mindely (YC S24)Co-Founder & CTO2024 — 2025San Francisco Bay Area
  3. McKinsey & CompanyLead Data Scientist2024Paris, Île-de-France, France
  4. McKinsey & CompanySenior Data Scientist2023 — 2024Paris, Île-de-France, France
  5. McKinsey & CompanyData Scientist2021 — 2023
  6. QuantumBlack, AI by McKinseyLead Data Scientist2021 — 2024Paris, Île-de-France, France
  7. Institut du Cerveau – Paris Brain InstituteResearch Scholar2021Paris, Île-de-France, France
  8. InriaResearch Scholar2021Paris, Île-de-France, France
  9. Harvard Medical SchoolResearch Assistant2019 — 2020Boston, Massachusetts, United States
  10. Jumia GroupData Scientist2019Porto Metropolitan Area

Education

  1. Y CombinatorS24 batch2024
  2. ENS Paris-SaclayMaster 2 (M2) - MVA, Mathematics and Computer Science
  3. Harvard UniversityComputer Science
  4. École nationale des ponts et chausséesMaster of Science - MS, Double Major: Mathematics & Computer Science
  5. Lycée Pierre De FermatMathematics, Physics
  6. Lycée Pierre De FermatScientific Baccalaureate - German European Section

Skills & more

Team Leadership2Python (Programming Language)6genAI6Optimization7Machine Learning3Quantum Computing3Luxury Brand Marketing1kedro1Software Development1MLOps1Python11C++9
+11 moreLaTeXGestion de projetAnalyse de donnéesSQLRGitFrenchEnglishGermanHebrewPortuguese

Languages English · French · German · Hebrew · Portuguese

From Sasha's professional profile.

Frequently asked questions

Where does Sasha Collin work?
Sasha Collin is CPO at Lemrock.
What companies did Sasha Collin found?
Sasha Collin founded Lemrock.

Founder mafias

Y Combinator mafia4,700

Also came through, then founded or led a company.

Darius "Bubs" MonsefS19Founded Sightbox +3Matthew ScholzFounded Oisin Biotechnologies +3Oleg RogynskyyEntrepreneurship/Entrepreneurial StudiesFounded UFORCE Acquired +2Magnus HambletonFounded Founders Pledge +2IanFounded Immunity Project +2Guillaume LuccisanoDid Y Combinator 3 timesFounded Yuma AI +2

+ 4,693 more

Entrepreneur First mafia595

Also came through, then founded or led a company.

Reid HoffmanBoard MemberFounded Manas AI +1Matthew WilsonVenture PartnerFounded Veratrak +2Rashid MansoorEntrepreneur, Inaugural CohortFounded Hadean +2Ruban KanapathippillaiEntrepreneur First 2024Founded Iterate AI +1Alice BentinckGeneral PartnerFounded Entrepreneurs First +1Matt CliffordCofounder and ChairFounded Entrepreneurs First +1

+ 588 more

McKinsey & Company mafia319

Also came through, then founded or led a company.

Elad GilConsultantFounded Brain Co.Inaki BerenguerAssociateFounded InfiniteWatch +2Ryan XueManagement ConsultantFounded Andco +2Max AhrensFellow InternFounded Maihem +2Pedro SicilianoBusiness Analyst InternFounded Teachy +1Shantanu AgarwalSummer AssociateFounded Sustaera +1

+ 312 more

ENS Paris-Saclay mafia12

Also came through, then founded or led a company.

Jerome de Tycheyéconomie et gestionFounded ComethBruno VegrevilleMaster's degreeFounded HeraGeoffrey NegiarMaster of Science (M.S.)Founded The Forecasting CompanyRaphael KriefMRes MVAFounded WeelSamuel MarcianoMaster 2 (M2) Mathématiques Vision Apprentissage - MVAFounded WeelSylvanus MaheMaster's degree in MathematicsFounded Flott HQ

+ 5 more

École nationale des ponts et chaussées mafia6

Also came through, then founded or led a company.

Christophe BarreM1Founded OneKeyAntonin ParrotEngineering degreeFounded River MarketsClément NguyenMaster of Science - MSFounded LemrockEmilien ChauvetMaster's degreeFounded SynapsJérôme LecatEngineeringFounded Scality

Same school

Also attended Y Combinator2,000

Maroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesVictor SantosVictor Scout at One Way VenturesSwapnil JainCEO, Observe.AI at EMERGENT VENTURESChase AdamPartner at Very Serious VenturesMuzzammil (MZ) ZaveriPartner at Audacious Ventures backing ambitious early-stage founders

+ 1,994 more

Also attended ENS Paris-Saclay15

Michal ValkoInvestor at KAYAJerome de TycheyInvestor at ATKALouise-Marie RakotoarisonAnalyst at Kurma PartnersSarah LoertscherAssociate at ISALT - Investissements Stratégiques en Actions Long TermeJerry ChenInvestor at Mucker CapitalBruno VegrevilleFounder at Hera

+ 9 more

Also attended Harvard University1,457

Alfred LinPartner at Sequoia CapitalChris DixonFounder & Managing Partner of a16z crypto at Andreessen HorowitzSarah TavelVenture Partner at BenchmarkDanny RimerPartner at Index VenturesLaela SturdyManaging Partner at CapitalGRyan IsonoDeal Partner at Felicis Ventures

+ 1,451 more

Also attended École nationale des ponts et chaussées24

Julia AndreInvestor at Index VenturesFelipe MendesDirector of Finance Brazil at Valor Capital GroupGuillaume SarlatVenture Partner at Axeleo CapitalAntoine VedrennePartner at Citizen CapitalAurore AsparInvestment Director at Citizen CapitalXavier LorphelinManaging Partner at Serena

+ 18 more

Shared employers

Also worked at Lemrock1

Clément NguyenCTO at Lemrock

Also worked at McKinsey & Company1,453

Elad GilSolo general partner investing through Gil CapitalJim BreyerFounder & CEO of Breyer CapitalAnn Miura-KoCo-founding Partner at FloodgateJeremy LiewPartner at Lightspeed Venture PartnersMike SpeiserManaging Director at Sutter Hill VenturesJeremy LevinePartner at Bessemer Venture Partners

+ 1,447 more

Also worked at Inria26

Sandeep BhadraGeneral Partner at Vertex VenturesKathy PhamInvestor at Blue Tulip VenturesMichal ValkoInvestor at KAYAJean KrivineInvestor at ATKAProf. Sandeep ShuklaProfessor & Director, IIIT Hyderabad at T-HubLaurent KottVenture Partner at Elaia

+ 20 more

Also worked at Harvard Medical School162

Logan HilleLife Sciences Analyst at CincyTechAnkit GuptaGeneral Partner at Y CombinatorDavid MollerInvestor at Third Rock VenturesJulie YangInvestor at Third Rock VenturesTracy WilliamsInvestor at Third Rock VenturesSamuel ArbesmanVenture Partner at Lux Capital

+ 156 more