About
Joel Tomas Pimentel studied rocket science at Imperial College London and Stanford University and is building financial technology products.
Founder at SelfinYC F25
Intro paths
YC
Joel went through Y Combinator (Fall 2025) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Tom Blomfield, Monzo and GoCardless co-founder; Y Combinator partner on leave and Anthropic compute-team member. — the partner who ran Selfin's batch and knows the company first-hand. YC profile ↗
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In turn, Joel can intro founders to Selfin's investors below.
Selfin's investors · 2
Co-founders at Selfin
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Paula GutierrezFounder
Experience
- Selfin (YC F25)Co-Foundercurrent2025 — presentSan Francisco Bay Area
- KrakenProduct & strategy2024London Area, United Kingdom
- Boston Consulting Group (BCG)Visiting Associate2024Madrid, Community of Madrid, Spain
- VoltaCo-Founder2022 — 2023London Area, United Kingdom
- IntelsatCustomer Solutions Engineering Intern2023Greater London, England, United Kingdom
- NullshockCo-Founder2023London Area, United Kingdom
- Ricardo plcAnalyst Intern2022 — 2023Londres, Inglaterra, Reino Unido
- ClearSpaceSWE Intern2022Lausana, Vaud, Suiza
Skills & more
English4Spanish1Python (Programming Language)3SOLIDWORKS2MATLAB2Microsoft Office1C++JavaScriptHTMLCssAbaqusFinance1
+12 more
Software DevelopmentProject ManagementEngineeringAerospaceSpacecraftBusiness StrategyAeronauticsNumerical AnalysisConsultingData AnalysisFinancial ModelingCompetitive AnalysisLanguages English · French · German · Spanish
- Securities Education Certificate — Imperial College Investment Society
- Prospero Fellowship — Prospero Fellowship
- ESA Robotics Workshop — European Space Agency - ESA
- JP Morgan Investment Banking Virtual Experience — JPMorganChase
- Student Affiliate Member — Royal Aeronautical Society
- Goldman Sachs Engineering Virtual Program at Forage — Goldman Sachs
- Level C2-2 in English awarded at EF Washington DC — EF Language Abroad
- TOEFL iBT — TOEFL
- Certificate of Advanced English C1 — Cambridge English
From Joel's professional profile.
Frequently asked questions
- Who is Joel Tomas Pimentel?
- Joel Tomas Pimentel studied rocket science at Imperial College London and Stanford University and is building financial technology products.
- Where does Joel Tomas Pimentel work?
- Joel Tomas Pimentel is Founder of Selfin.
- What companies did Joel Tomas Pimentel found?
- Joel Tomas Pimentel founded Selfin.
- Where did Joel Tomas Pimentel go to school?
- Joel Tomas Pimentel studied at Imperial College London (Integrated Master's degree in Aerospace Engineering); Stanford University (Master's thesis); Y Combinator (F25).
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
Imperial College London mafia196
Also came through, then founded or led a company.
Brent HobermanAdvisor, Innovation FundFounded Founders Pledge +3Nessan BerminghamDoctor of Philosophy - PhDFounded Korro Bio +2Alice BentinckComputer Science Department Industrial Liaison BoardFounded Entrepreneurs First +1Ahmed DeyabMSc Advanced Computational Methods for AeronauticsFounded Instagram +1Sebastian TrousilPhDFounded City Therapeutics +1Slava SolonitsynMBAFounded No Cap +1
+ 189 more
National University of Singapore mafia88
Also came through, then founded or led a company.
Aihui OngB.Sc.Founded Love With Food +2Mike MoradiLeadershipFounded Southwest Nanotechnologies +1Lloyd LeeExchange StudentFounded Hyperithm +1Sivamani VarunBachelor of Engineering - BEFounded Keygraph +1Victor Liew Jia HaoBachelor of Computing (Honours)Founded StraitsX +1Kushal PillayMaster's degreeFounded Powerhouse Ai +1
_%20%E1%84%8E%E1%85%AC%E1%84%8C%E1%85%A9%E1%86%BC%E1%84%87%E1%85%A9%E1%86%AB_%E1%84%87%E1%85%A1%E1%84%83%E1%85%A1%E1%86%A8%E1%84%8B%E1%85%A5%E1%86%AF%E1%84%85%E1%85%AE%E1%86%A8%E1%84%8C%E1%85%A6%E1%84%80%E1%85%A5_revised_2_1x1_3.jpg){kind=spacer}
+ 81 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 ConvoyArhaan A.Deeptech Fellow at Clear VenturesMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports Ventures
+ 1,994 more
Also attended Universidad Nacional de Educación a Distancia - U.N.E.D.15
Carlos EstebanPartner at FaberIsabel AlbellaInvestor at Global Social Impact InvestmentJesus PerezPartner at Civeta InvestmentPedro GuerraPartner at Civeta InvestmentÀngels RoquetaBoard Member at ActyusMiguel Fernández JimenezInvestor at Actyus
+ 9 more
Also attended Dual Diploma1
Shared employers
Also worked at Selfin (YC F25)1
Also worked at Kraken1
Also worked at Boston Consulting Group (BCG)907
David SzeAdvisory Partner at GreylockDave MunichielloInvestor at GV (Google Ventures)Massimo PrelzInvestor at DN CapitalRasmus AreskougInvestor at DN CapitalRiccardo MontiOperating Advisor at P101 VenturesAntonio TurroniOperating Advisor at P101 Ventures
+ 901 more
