About
Roman Shemet has worked as a quantitative analyst and economist with background in product and data engineering. He is currently working on mobile inference at Cactus.
Founder at Cactus ComputeYC S25
Intro paths
YC
Roman went through Y Combinator (Summer 2025) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Andrew Miklas, General Partner at Y Combinator — the partner who ran Cactus Compute's batch and knows the company first-hand. YC profile ↗
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In turn, Roman can intro founders to Cactus Compute's investors below.
Cactus Compute's investors · 6
Antigravity CapitalSan FranciscoPelion Venture PartnersSalt Lake City · $1M – $20M checks · since 2025Rebel FundSan Francisco · $100K – $5M checks · since 2025Transpose Platform ManagementHoustonWellington ManagementBoston · $5M – $50M checks · since 2025Y CombinatorSan Francisco · $500K checks · since 2025
Co-founders at Cactus Compute
HN
Henry NdubuakuFounder
Experience
- Cactus (YC S25)Founder, CEOcurrent2025 — present
- KoalafiProduct Manager2021 — 2024Washington, DC
- Da Vinci DerivativesQuantitative Researcher2020 — 2021Amsterdam, North Holland, Netherlands
- Oxford Alpha FundEquity Analyst2019 — 2020Oxford, United Kingdom
- Amber Lion CapitalQuantitative Developer2019 — 2020Zurich, Switzerland
- Julius BaerInvestment Solutions Specialist2018Zürich Area, Switzerland
- Julius BaerNext Generation Equity Research Intern2017Zürich Area, Switzerland
- Tillypad LtdSales Manager2016 — 2017Nuneaton, UK
- Khimji Ramdas - Procter & Gamble Distribution DivisionMerchandising & Logistics Intern2015Muscat Governorate, Oman
Skills & more
Leadership3Microsoft Office4Microsoft Excel2Microsoft Word2Microsoft PowerPoint1bloombergpythonVisual Basic for Applications (VBA)Python (Programming Language)1PythonPandas1MongoDB
+12 more
Financial AnalysisQuantitative AnalyticsData scienceResearchSales ManagementProject ManagementEmerging MarketsEquitiesDue DiligenceFinancial ModelingBankingEconomics- CFA Level I — CFA Institute
From Roman's professional profile.
Frequently asked questions
- Who is Roman Shemet?
- Roman Shemet has worked as a quantitative analyst and economist with background in product and data engineering. He is currently working on mobile inference at Cactus.
- Where does Roman Shemet work?
- Roman Shemet is Founder of Cactus Compute.
- What companies did Roman Shemet found?
- Roman Shemet founded Cactus Compute.
- Where did Roman Shemet go to school?
- Roman Shemet studied at University of Oxford (MSc, Financial Economics); Y Combinator (Cactus (YC S25)); UCL (BA Economics And Business with East European Studies).
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
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
UCL mafia117
Also came through, then founded or led a company.
Demis HassabisPhDFounded Google Deepmind +2Nessan BerminghamDoctor of Philosophy - PhDFounded Korro Bio +2Gustavo GorensteinMaster of Science (M.Sc.)Founded bxblue +1Radu MaziluBachelor of Science (BSc)Founded PermitPortal +1Nodar DaneliyaFounded Shuttle +1Nicolas HourcardCorporate FinanceFounded QuestDB +1
+ 110 more
Julius Baer mafia2
Also came through, then founded or led a company.
Same school
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
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
Shared employers
Also worked at Cactus (YC S25)1
Also worked at Da Vinci Derivatives4
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Also worked at Oxford Alpha Fund2
Also worked at Julius Baer20
Dr. Heinrich BaumannInvestor at Backbone VenturesJamie MartinPlacement Intern at OakglenDaniel Vegue DomínguezPartner at Block Asset ManagementAvishi PatodiaAnalyst at Peak Sustainability VenturesRobert-Philippe BlochBoard member at 4see VenturesIan MacleodChair at Archangels
+ 14 more