Find your path to Effy
604 people in our graph share verified history with Effy — schools, employers, funds. One of them is your warm intro.
Cat WuunlockedEffy: together at Anthropic (2025–2026)
×5Effy: together at Anthropic
×3Effy: together at Stealth Startup
Effy: together at Square
About
Effy Zhang is founder of Baserun, which provides testing and observability tools for LLM applications.
Founder at BaserunYC S23
Intro paths
YC
Effy went through Y Combinator (Summer 2023) — 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 Baserun's batch and knows the company first-hand. YC profile ↗
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In turn, Effy can intro founders to Baserun's investors below.
Baserun's investors · 1
Experience
- AnthropicMember of Technical Staffcurrent2025 — presentUnited States
- Stealth StartupCo-Founder2025San Francisco Bay Area
- baserunCEO & Founder2023 — 2024San Francisco Bay Area
- CruiseStaff Product Designer2020 — 2023San Francisco Bay Area
- SquareSenior Product Designer2015 — 2020San Francisco, California
- Gray Area Foundation For The ArtsTeaching Assistant2016 — 2017San Francisco Bay Area
- Samsung Electronics AmericaInteraction Design Intern2015New York City Metropolitan Area
- Samsung Electronics AmericaInteraction Design Intern2014san jose, california
- THRE3DProduct Designer2013Beijing
- Crystal AsiaWeb Designer2012Beijing
- Condé NastFreelance Illustrator2011 — 2012Beijing, China
- Beijing Design WeekAssistant Project Manager2011Beijing, China
- Mobitide Technology Co,.LtdUI/UX intern2011Beijing
Skills & more
Interaction Design38Physical Computing11Graphic Design35Photoshop23Photography22User Interface Design22Web Design20User Experience33Industrial Design8Web Development4Usability Testing6Design Strategy1
+7 more
SwiftVirtual RealityProduct DesignData VisualizationUser Experience DesignAdobe Creative SuiteAdobe PhotoshopLanguages Chinese · English
From Effy's professional profile.
Frequently asked questions
- Who is Effy Zhang?
- Effy Zhang is founder of Baserun, which provides testing and observability tools for LLM applications.
- Where does Effy Zhang work?
- Effy Zhang is Founder of Baserun.
- What companies did Effy Zhang found?
- Effy Zhang founded Baserun.
- Where did Effy Zhang go to school?
- Effy Zhang studied at School of Visual Arts (Master of Fine Arts (MFA), Interaction Design); Fullstack Academy (Computer Software Engineering); UploadVR (VR Development).
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
Anthropic mafia55
Also came through, then founded or led a company.
Mike KriegerChief Product Officer (moved into new 'Labs' division, Jan 2026)Founded InstagramReed HastingsBoard MemberFounded InterPositiveTom BlomfieldMember of Technical StaffFounded Starling Bank +2Sameer DholakiaInvestorFounded SendGrid +1Jeremy JohnsonInvestorFounded 2U +1Houman HaghighiInvestorFounded Techstars
+ 48 more
Cruise mafia45
Also came through, then founded or led a company.
Kyle VogtFounder/CEOFounded GM Cruise Holdings +2Daniel KanFounder/COOFounded GM Cruise Holdings +2Kaitlyn KnoppHead of Compensation & People AnalyticsFounded Pequity +1Oliver CameronVP, ProductFounded Everyme +1Matthew DeitersDirector of Product & Technical OperationsFounded Assembly Made +1Sohrab HaghighatControls EngineerFounded Hestus, Inc. +1
+ 38 more
School of Visual Arts mafia8
Also came through, then founded or led a company.
Reid NahmIllustrationFounded CovetlyVivien SinPainting and Mixed Media Summer Art ResidencyFounded The Third PlaceYinka ElujobaMaster of Fine Arts - MFAFounded PlumterGhazal AlaghSummer Intensive Course in Modern ArtFounded MamaearthYvonne GrzenkowiczContinuing EducationFounded Animation Nights New YorkMarcy CapronBachelor of Fine Arts - BFAFounded Myeq
+ 1 more
CodePath mafia5
Also came through, then founded or led a company.
Same school
Also attended School of Visual Arts23
Ashley LawSenior Director of Events at Redpoint VenturesMatt HoffExecutive Assistant at Lerer HippeauCharlotte SalaskyPartner, Investor Relations at Notion CapitalJessica NealOperating Partner at TCVShira WhiteFounder, BeautifulNow at The 98Ashley O’ConnorSenior Marketing Manager at B Capital Group
+ 17 more
Shared employers
Also worked at Stealth Startup482
Andrew ChenGeneral Partner at Andreessen HorowitzGabriel PereyraCo-founder & President of HarveyErica VanInvestment Director at Intel CapitalHemamAdvisor at Clear VenturesArhaan A.Deeptech Fellow at Clear VenturesHamish GarnettAssociate at Manta Ray Ventures
+ 476 more
Also worked at Gray Area Foundation For The Arts3
Also worked at Samsung Electronics America17
Anna ChenInvestor at Madrona Venture GroupHannah ShorePrincipal, Head of Network at StripesHelen LinHead of People Operations at Samsung NextReece PachecoPartner at PropellerL. Jasmine KimStrategic Advisor at DigiTx Partners LLCDamien BalsanGeneral Partner at Conexo Ventures
+ 11 more
Also worked at Condé Nast51
Alexis OhanianFounder & General Partner of Seven Seven SixJosephine LuschInvestment Associate at Burda Principal InvestmentsAlex ConstantinopleChief Marketing Officer at GreycroftAndrea EchstenkamperVP of Marketing at HeavybitBob RoeVP, Narrative Development at Sozo VenturesAmanda NiuGeneral Partner and CFO at Shine Capital
+ 45 more