Find your path to Lewis
674 people in our graph share verified history with Lewis — schools, employers, funds. One of them is your warm intro.
Tobi CokerunlockedLewis: together at Stealth (2025–2026)
×6Lewis: together at University of Cambridge
×2Lewis: together at Stealth
×3Lewis: together at Y Combinator
About
Lewis Hemens previously served as CTO at Dataform before its acquisition, followed by a role as Google Engineering Manager in Data Analytics through 2024. He has expertise in data, AI, and machine learning.
Founder at DataformYC W18
Intro paths
YC
Lewis went through Y Combinator (Winter 2018) — any YC alum in your network can reach them through the YC community.
→
In turn, Lewis can intro founders to Dataform's investors below.
Dataform's investors · 3
-2.png)
Co-founders at Dataform
GH
Guillaume-Henri HuonFounder
Experience
- StealthBuildingcurrent2025 — presentLondon Area, United Kingdom
- GoogleSenior Staff Software Engineer2024 — 2025Greater London, England, United Kingdom
- GoogleEngineering Manager2020 — 2024London, England, United Kingdom
- dataform.coCo-founder & CTO2018 — 2020London, United Kingdom
- GoogleEngineering Manager2014 — 2017London, United Kingdom
- GoogleSoftware Engineer2010 — 2014
Skills & more
GWT3SecurityWeb Applications5Google App EngineTesting1Guice1Machine Learning2Software Design1Scalability1Algorithms2Java9Unix2
+7 more
CSSEclipseJavaScriptGitLinuxMapReduceMySQLFrom Lewis's professional profile.
Frequently asked questions
- Who is Lewis Hemens?
- Lewis Hemens previously served as CTO at Dataform before its acquisition, followed by a role as Google Engineering Manager in Data Analytics through 2024. He has expertise in data, AI, and machine learning.
- Where does Lewis Hemens work?
- Lewis Hemens is Founder of Dataform.
- What companies did Lewis Hemens found?
- Lewis Hemens founded Dataform.
- Where did Lewis Hemens go to school?
- Lewis Hemens studied at Y Combinator; University of Cambridge (Computer Science, 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
University of Cambridge mafia589
Also came through, then founded or led a company.
Stewart ButterfieldMPhilFounded Flickr +1Demis HassabisBAFounded Google Deepmind +2C. Giovanni TraversoMBFounded Teal Bio +4Immad AkhundMaster of Arts (M.A.)Founded Mercury Technologies, Inc. +3Inaki BerenguerMasterFounded InfiniteWatch +2Harish AgarwalMaster of Philosophy - MPhilFounded Nori +2
+ 582 more
Same school
Also attended Y Combinator2,000
Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyArhaan A.Deeptech Fellow at Clear VenturesCollin WallaceGeneral Partner at Lobby CapitalVictor SantosVictor Scout at One Way Ventures
+ 1,994 more
Also attended University of Cambridge1,605
Stewart ButterfieldCo-founder of Slack and FlickrDemis HassabisCo-founder & CEO of Google DeepMindNiko BonatsosFounder and Managing Partner of VerdictGeorgia StevensonInvestor at Index VenturesHannah SealInvestor at Index VenturesLeah von SiemensPartner at Manta Ray Ventures
+ 1,599 more
Shared employers
Also worked at Stealth142
Tobi CokerDeal Partner at Felicis VenturesSusana RojasInvestor at Index VenturesCasber WangOperating Partner at Sapphire VenturesOlivier GrindaVenture Partner at FJ LabsZachary GinsburgVenture Partner, Calm Ventures at GaingelsArtia MoghbelInvestor at Draft Ventures Llc
+ 136 more
Also worked at Google2,000
Kai-Fu LeeChairman of Sinovation Ventures and CEO of 01.AIBrian SingermanCo-founder of GPx; Partner Emeritus at Founders FundHunter WalkCo-founder & Partner at HomebrewAydin SenkutFounder & Managing Partner at FelicisLaela SturdyManaging Partner at CapitalGArash FerdowsiCo-founder of Dropbox
+ 1,994 more
