About
Clément is a returning Y Combinator founder who previously worked as a data scientist at Rakuten Advertising, building recommendation systems and scaling AI across the advertising technology stack. His technical background covers infrastructure, data pipelines, ad bidding, and agentic AI systems.
CTO at Lemrock
Intro paths
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In turn, Clément can intro founders to Lemrock's investors below.
Lemrock's investors · 5
Co-founders at Lemrock
RL
SC
Sasha CollinCPO
Experience
- LemrockCo-Founder & CTOcurrent2025 — presentSan Francisco Bay Area
- Mindely (YC S24)Co-Founder2024 — 2025San Francisco, California, United States
- Rakuten AdvertisingSenior Full-Stack Data Scientist2023 — 2024Paris, France
- Rakuten AdvertisingData Scientist2021 — 2022Paris, Île-de-France, France
- Ecole normale supérieureResearch Scholar2021Paris, Île-de-France, France
- VEDECOMResearch Scholar2020Versailles, Île-de-France, France
- Jumia GroupData Scientist2019Porto, Portugal
- EuroviaCivil Construction Engineer2017Paris, France
Education
- Y Combinator2024
- ENS Paris-SaclayMaster 2 (M2) - MVA, Mathematics and Computer Science
- École nationale des ponts et chausséesMaster of Science - MS, Mathematics and Computer Science
- Collège Stanislas ParisPreparatory Class
- Saint François d'AssiseHigh School
Skills & more
Object Detection4Digital Image Processing3Natural Language Processing (NLP)4TTS4Machine Learning1MLOps1Full-Stack Development1PyTorch6Google Cloud Platform (GCP)1Node.js1C++6Python7
+6 more
Pack OfficeLaTeXSQLReact.jsHTMLFeuilles de style en cascade (CSS)Languages Anglais · Espagnol · Français · Vietnamien
From Clément's professional profile.
Frequently asked questions
- Where does Clément Nguyen work?
- Clément Nguyen is CTO at Lemrock.
- What companies did Clément Nguyen found?
- Clément Nguyen 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
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
Collège Stanislas Paris mafia10
Also came through, then founded or led a company.
Pierre-Louis BiojoutAdmitted to École PolytechniqueFounded NanoCorp +1Marie BardinetCPGE en filière ECSFounded NormaAnh-Tho ChuongClasse préparatoireFounded LagoAlexis BonnafontClasses préparatoires aux grandes écolesFounded Excellence LearningMattia MauroBachelor of Science - BSFounded Excellence LearningPaul-Henri BiojoutAdmission à l'école CentraleSupelecFounded Dollyglot
+ 3 more
École nationale des ponts et chaussées mafia6
Also came through, then founded or led a company.
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 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
Also attended Collège Stanislas Paris30
Marie BardinetInvestor at DaphniLouis DessalSenior Associate at Partech VenturesPauline AnconaSenior Associate - Venture at Iris CapitalJuliette Raoul-FortésaInvestment Manager at CapagroLouis DussartVP, Europe at RTP GlobalMarc WeillVC Analyst Intern at OneRagtime
+ 24 more
Shared employers
Also worked at Lemrock1
Also worked at Rakuten Advertising5
Also worked at Ecole normale supérieure13
Sofia DahouneInvestor at DaphniChristophe JurczakPartner at QuantonationAlexander Sinclair-Wilson执行董事 at Qiming Venture PartnersSasha LuccioniInvestor at Blue Tulip VenturesAnne BouverotIndependent Board Member at ElaiaLouise-Marie RakotoarisonAnalyst at Kurma Partners
+ 7 more
