Find your path to Clément
742 people in our graph share verified history with Clément — schools, employers, funds. One of them is your warm intro.
Toby CoppelunlockedClément: together at Entrepreneur First (2025)
×7Clément: together at Y Combinator
Clément: together at École nationale des ponts et chaussées
Clément: together at Rakuten Advertising
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.
Likely email· guessed from name + firm domain, not firm-published
- c•••@lemrock.comreveal75% confident
CTO at Lemrock
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In turn, Clément can intro founders to Lemrock's investors below.
Lemrock's investors · 6
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
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
- Who is Clément Nguyen?
- 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.
- Where does Clément Nguyen work?
- Clément Nguyen is CTO of Lemrock.
- What companies did Clément Nguyen found?
- Clément Nguyen founded Lemrock.
- Where did Clément Nguyen go to school?
- Clément Nguyen studied at Y Combinator; ENS Paris-Saclay (Master 2 (M2) - MVA, Mathematics and Computer Science); École nationale des ponts et chaussées (Master of Science - MS, Mathematics and Computer Science).
Founder mafias
Y Combinator mafia10,230
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Garry TanPresident & CEOFounded Y Combinator +1Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianPartnerFounded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded Paradigm +1
+ 10,223 more
Entrepreneur First mafia885
Also came through, then founded or led a company.
Reid HoffmanBoard MemberFounded LinkedIn +2Matthew WilsonFounder In ResidenceFounded Veratrak +2Rashid MansoorEntrepreneur, Inaugural CohortFounded HADEAN +2Eugene CheahEntrepreneur First 2017Founded Recursal AI, Inc. +2Steven RenwickCohort memberFounded Tilores +2Ruban KanapathippillaiEntrepreneur First 2024Founded Iterate AI +1
+ 878 more
ENS Paris-Saclay mafia17
Also came through, then founded or led a company.
Arthur MenschMaster of ScienceFounded Mistral AIJerome de Tycheyéconomie et gestionFounded ComethJerry ChenMaster's DegreeFounded DigitalBruno VegrevilleMaster's degreeFounded HeraGeoffrey NegiarMaster of Science (M.S.)Founded The Forecasting CompanyRaphael KriefMRes MVAFounded Weel
+ 10 more
École nationale des ponts et chaussées mafia16
Also came through, then founded or led a company.
Christophe BarreM1Founded Tandem +1Cristian BartoloméExchange StudentFounded Factored +1Bruno Fernandez-RuizApplied Mathematics & Computer ScienceFounded NexarAntonin ParrotEngineering degreeFounded River MarketsVassily CarantinoMS in Applied Mathematics & EconomicsFounded CarbonfarmSasha CollinMaster of Science - MSFounded Lemrock
+ 9 more
Collège Stanislas Paris mafia16
Also came through, then founded or led a company.
Anh-Tho ChuongClasse préparatoireFounded Get Lago +1Pierre-Louis BiojoutAdmitted to École PolytechniqueFounded NanoCorp +1Charles BrecqueMPSI/MP*Founded Legislate +1Marie BardinetCPGE en filière ECSFounded NormaAlexis BonnafontClasses préparatoires aux grandes écolesFounded Excellence LearningMattia MauroBachelor of Science - BSFounded Excellence Learning
+ 9 more
Same school
Also attended Y Combinator2,000
Ryan SheaCo-founder of Blockstack (Stacks)Suhail DoshiFounder of Mixpanel; founder of ParticleArhaan A.Deeptech Fellow at Clear VenturesAkshat GoenkaInvestor at Moonfire VenturesJon XuGeneral Partner at Y CombinatorChris GoldaGeneral Partner at Y Combinator
+ 1,994 more
Also attended ENS Paris-Saclay21
Arthur MenschCo-founder & CEO of Mistral AIMathieu GoudotSenior Partner at Circular Innovation FundMichal ValkoInvestor at KAYAJerome de TycheyInvestor at ATKALouise-Marie RakotoarisonAnalyst at Kurma PartnersSarah LoertscherAssociate at ISALT - Investissements Stratégiques en Actions Long Terme
+ 15 more
Also attended École nationale des ponts et chaussées38
Julia AndreInvestor at Index VenturesFelipe MendesDirector of Finance Brazil at Valor Capital GroupGuillaume SarlatVenture Partner at Axeleo CapitalStéphane VillecrozeManaging Partner at DemeterAntoine VedrennePartner at Citizen CapitalAurore AsparInvestment Director at Citizen Capital
+ 32 more
Also attended Collège Stanislas Paris40
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
+ 34 more
Shared employers
Also worked at Lemrock1
Also worked at Rakuten Advertising5
Also worked at Ecole normale supérieure24
Arthur MenschCo-founder & CEO of Mistral AISofia DahouneInvestor at DaphniChristophe JurczakPartner at QuantonationAlexander Sinclair-Wilson执行董事 at Qiming Venture PartnersSasha LuccioniInvestor at Blue Tulip VenturesElisabetta VesconiInvestment Manager at Planven Entrepreneur Ventures
+ 18 more
