About
Stephen Ni is building Bluma and previously studied at the University of Waterloo.
Founder at BlumaYC F25
Intro paths
YC
Stephen 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 Harj Taggar, General Partner at Y Combinator — the partner who ran Bluma's batch and knows the company first-hand. YC profile ↗
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In turn, Stephen can intro founders to Bluma's investors below.
Bluma's investors · 1
Co-founders at Bluma
AW
Alisa WuFounder
Experience
- Bluma (YC F25)Co-Founder & CTOcurrent2025 — presentSan Francisco Bay Area
- ShopifySoftware Engineer Intern2025Toronto, Ontario, Canada
- Trend MicroSoftware Engineer Intern2024Kanata, Ontario, Canada
- DropbaseSoftware Engineer Intern2024San Francisco, California, United States
- TurtleHacksCo-Founder | Lead Organizer2022 — 2023
- Toronto Model United Nations (TMUN)Web Developer2022Ontario, Canada
- Inspirit AIInspirit AI Scholar2022
- Ignition HacksDirector of Outreach2022Ontario, Canada
- Major League HackingHacker2022Ontario, Canada
Skills & more
ultrathink1Spring Boot1LangChain1Web3JenkinsRuby on RailsGraphQLAmazon Web Services (AWS)Python (Programming Language)4FastAPIReact.js2Next.js
+7 more
Node.jsHTMLCascading Style Sheets (CSS)JavaScriptTypeScriptSQLJavaLanguages English · French · Mandarin
- AWS Certified Cloud Practitioner — Amazon Web Services (AWS)
- Machine Learning Specialization — DeepLearning.AI
- Level 10 Piano — The Royal Conservatory of Music
From Stephen's professional profile.
Frequently asked questions
- Who is Stephen Ni?
- Stephen Ni is building Bluma and previously studied at the University of Waterloo.
- Where does Stephen Ni work?
- Stephen Ni is Founder of Bluma.
- What companies did Stephen Ni found?
- Stephen Ni founded Bluma.
- Where did Stephen Ni go to school?
- Stephen Ni studied at Y Combinator; University of Waterloo (Systems Design Engineering); John Fraser Secondary School.
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 Waterloo mafia200
Also came through, then founded or led a company.
Apoorva MehtaBAScFounded InstacartZach WaterfieldComputer EngineeringFounded Zettlor +1Peter CarresciaBMathFounded GoConfirm +1Eric BlondeelDoctor of Philosophy - PhDFounded Samos Insurance +1Oleg KostourHonours Bachelor of Architectural StudiesFounded AtlasGrid +1Anton KrutianskyBachelor of Applied Science (B.A.Sc.)Founded AtlasGrid +1
+ 193 more
Shopify mafia33
Also came through, then founded or led a company.
Tobias LütkeCEOFounded ShopifyCraig SoulesPrincipal EngineerFounded Springtail +1Jordan DearsleySoftware Engineer InternFounded Superpowered +1Chirag PatelVP Product & GM MoneyFounded PaysafeJonathan PomaDirector, Go-to-Market InitiativesFounded LoopMisha FrolovStaff Product DesignerFounded More Labs
+ 26 more
Major League Hacking mafia3
Also came through, then founded or led a company.
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 VenturesMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports Ventures
+ 1,994 more
Also attended University of Waterloo437
Chamath PalihapitiyaFounder & CEO of Social CapitalApoorva MehtaFounder of Instacart; founder of Cloud Health SystemsAchintya ChaudhariInvestor at LightbankKarim GillaniGeneral Partner at Luge CapitalRohan MongaInvestment Associate at Luge CapitalAndrew MiklasGeneral Partner at Y Combinator
+ 431 more
Shared employers
Also worked at Bluma (YC F25)1
Also worked at Shopify71
Aydin SenkutFounder & Managing Partner at FelicisJeremy LevinePartner at Bessemer Venture PartnersTobias LütkeCo-founder & CEO of ShopifyHarley FinkelsteinInvestor at Felicis VenturesTrevor OelschigInvestment Team at General CatalystShelby Miller (Herrington)Investor at Silversmith Capital Partners
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+ 65 more
Also worked at Trend Micro16
Cyril MedunaPartner at MORRO VENTURESCyril MeduñaPartner at MORRO VENTURESJason HsuFormer Legislator & MP Taiwan, Eisenhower Fellowships 2022 at Taiwan Global AngelsSean MuirheadAdvisor (Chief Product Officer, Logpoint) at AllegisCyber CapitalAntony RossSenior Advisor at Bridges Fund Management Ltd.Jill ShihGeneral Manager, Taiwan at AI Fund
+ 10 more
