About
Niall Kehoe is a computer science graduate from Stanford who previously worked at Two Sigma and conducted research at Harvard Medical School and Stanford. He is currently CTO of Sylvian.
Founder at SylvianYC F25
Intro paths
YC
Niall went through Y Combinator (Fall 2025) β 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 β the partner who ran Sylvian's batch and knows the company first-hand. YC profile β
β
In turn, Niall can intro founders to Sylvian's investors below.
Sylvian's investors Β· 1
Co-founders at Sylvian
WH
William HuangFounder
Experience
- CitadelQuantitative Research Engineercurrent2026 β presentNew York, United States
- Two SigmaSoftware Engineer Intern2025New York, United States
- PomeloSoftware Engineer2024San Francisco, California, United States
- OnCourseCo-Founder2023 β 2024Stanford, California, United States
- Stanford UniversityCS198 Section Leader2023 β 2024Stanford, California, United States
- Stanford UniversityDATASCI112 CA2024Stanford, California, United States
- Stanford HCI GroupResearch Assistant | Stanford HCI | CURIS2023Stanford, California, United States
- Susquehanna International Group, LLP (SIG)SIG Discovery Day Participant2023
- Digital Youth CouncilBoard Member2016 β 2022Ireland
- Woolly Mammoth TechCEO2019 β 2022Ireland
- Kehoe GamesCEO2014 β 2019
- Kehoe GamesiOS Developer2014 β 2019
Skills & more
Rust (Programming Language)GraphQLPython (Programming Language)2Swift6Objective-C4C1C++1Java1CSS1PHP1JavaScript1Microsoft Office1
+12 more
C#XcodePythonHTMLXMLTypeScriptData ScienceCommunicationSoftware TestingAlgorithmsUniversity TeachingPublic Speaking- Swift Student Challenge 2021 β Apple
- Swift Student Challenge 2020 β Apple
- WWDC 2018 Scholarship β Apple
- WWDC 2017 Scholarship β Apple
From Niall's professional profile.
Frequently asked questions
- Who is Niall Kehoe?
- Niall Kehoe is a computer science graduate from Stanford who previously worked at Two Sigma and conducted research at Harvard Medical School and Stanford. He is currently CTO of Sylvian.
- Where does Niall Kehoe work?
- Niall Kehoe is Founder of Sylvian.
- What companies did Niall Kehoe found?
- Niall Kehoe founded Sylvian.
- Where did Niall Kehoe go to school?
- Niall Kehoe studied at Stanford University (Bachelor of Science - BS, Computer Science); Y Combinator (F25); University of Oxford (Visiting Student, Computational Statistics).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1
+ 8,766 more
Y Combinator mafia4,716
Also came through, then founded or led a company.
Ryan SheaEntrepreneurshipFounded StacksTarek MansourFounded KalshiSuhail DoshiEating beans & riceFounded Playground +1Subomi OluwalanaW22Founded ConvoyDarius "Bubs" MonsefS19Founded Sightbox +3Matthew ScholzFounded Oisin Biotechnologies +3
+ 4,709 more
Stanford University mafia903
Also came through, then founded or led a company.
Peter ThielJ.D.Founded PayPal +1Reid HoffmanB.S.Founded LinkedIn +2Joe LonsdaleBSFounded Opto +3Mike Maples JrBSFounded Pattern BreakersSteve JurvetsonMSEEFounded Mojo VisionBalaji SrinivasanGraduate StudentFounded Counsyl +1
+ 896 more
University of Oxford mafia290
Also came through, then founded or led a company.
Reid HoffmanM.St.Founded LinkedIn +2Gabriel PereyraDropped outFounded HarveyBrent HobermanMaster of Arts - MAFounded Founders Pledge +3William GuttmanM.PhilFounded CurvePoint +3Kevin HartzMstFounded Eventbrite +2Max AhrensDoctor of Philosophy - PhDFounded Maihem +2
+ 283 more
Two Sigma mafia23
Also came through, then founded or led a company.
Michael TruellInternFounded CursorJakob PalmstiernaWorkerFounded GsrDhaivat PandyaQuantitative ResearchFounded Verse MedicalPaul ButlerQuantitative AnalystFounded JamsocketSammy SidhuSoftware EngineerFounded EventualFernando VarelaSoftware Developer InternFounded Boton
+ 16 more
Same school
Also attended Stanford University2,000
Peter ThielCo-founder & Partner at Founders FundReid HoffmanCo-founder of LinkedIn; Partner at GreylockDavid SacksCo-founder & General Partner at Craft Ventures; former White House AI & Crypto CzarKeith RaboisManaging Director at Khosla VenturesGarry TanPresident & CEO of Y CombinatorAlfred LinPartner at Sequoia Capital
+ 1,994 more
Also attended Y Combinator2,000
Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesCollin WallaceGeneral Partner at Lobby Capital
+ 1,994 more
Also attended University of Oxford990
Reid HoffmanCo-founder of LinkedIn; Partner at GreylockMichael MoritzFormer Partner at Sequoia Capital; Senior Adviser at Sequoia HeritageBrad GerstnerFounder & CEO of Altimeter CapitalGabriel PereyraCo-founder & President of HarveyDominic JacquessonInvestor at Index VenturesErin Price-WrightInvestor at Index Ventures
+ 984 more
Shared employers
Also worked at Citadel72
Tarek MansourCo-founder & CEO of KalshiRobert CulpPrincipal at Marlin Equity PartnersDavid SnydermanManaging Partner and Global Head of Alternative Credit and Fixed Income at Magnetar AI VenturesFran AmicoExecutive Assistant at CAVU Consumer PartnersEvan FengPartner at CoinFundJohn GuCo-Founder and CEO at Caladan
+ 66 more
Also worked at Two Sigma38
Michael TruellCo-founder & CEO of CursorJakob PalmstiernaPresident at GSRColin BeirneFounding Partner at Deviation CapitalDusan PerovicPartner at Two Sigma VenturesJuliette HanBoard Member at MassChallenge MexicoKimberley BuenoVenture Advisor at Growth Warrior Capital
+ 32 more
Also worked at Pomelo3
Also worked at Stanford University724
Ann Miura-KoCo-founding Partner at FloodgateBalaji SrinivasanAngel investor and founder of The Network SchoolMartin CasadoGeneral Partner at Andreessen HorowitzMike KriegerCo-founder of Instagram; Chief Product Officer at AnthropicAndy FangCo-founder & CTO of DoorDashRyan SheaCo-founder of Blockstack (Stacks)
+ 718 more