Fundraising Fox

Effy Zhang

Founder

Founder at Baserun

San Francisco, California, United States

FoundedBaserun · YC

About

Effy Zhang is founder of Baserun, which provides testing and observability tools for LLM applications.

LinkedIn ↗X / Twitter ↗
Latest on 𝕏

Effy Zhang @effyyzhang

Turns out the conflicts weren't chasing me, I just forgot to turn on auto-merge.

Jun 1, 2026 · ♥ 5

Effy Zhang @effyyzhang

slack tip: organize your channels by who stamps your PRs the fastest.

May 22, 2026 · ♥ 19 · ⇄ 2

Effy Zhang @effyyzhang

Founder friends ask me: why Claude Managed Agents vs. X, Y, Z? Beyond feature fit, every integration has a cost. Picking a product is picking a long-term partner. You're betting on who listens, who supports you, who ships faster than your roadmap grows. A few weeks after we

May 6, 2026 · ♥ 142 · ⇄ 9

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 ↗

→

In turn, Effy can intro founders to Baserun's investors below.

Baserun's investors · 1

Y Combinator

Experience

  1. AnthropicMember of Technical Staffcurrent2025 — presentUnited States
  2. Stealth StartupCo-Founder2025San Francisco Bay Area
  3. baserunCEO & Founder2023 — 2024San Francisco Bay Area
  4. CruiseStaff Product Designer2020 — 2023San Francisco Bay Area
  5. SquareSenior Product Designer2015 — 2020San Francisco, California
  6. Gray Area Foundation For The ArtsTeaching Assistant2016 — 2017San Francisco Bay Area
  7. Samsung Electronics AmericaInteraction Design Intern2015New York City Metropolitan Area
  8. Samsung Electronics AmericaInteraction Design Intern2014san jose, california
  9. THRE3DProduct Designer2013Beijing
  10. Crystal AsiaWeb Designer2012Beijing
  11. Condé NastFreelance Illustrator2011 — 2012Beijing, China
  12. Beijing Design WeekAssistant Project Manager2011Beijing, China
  13. Mobitide Technology Co,.LtdUI/UX intern2011Beijing

Education

  1. School of Visual ArtsMaster of Fine Arts (MFA), Interaction Design2013 — 2015
  2. Fullstack AcademyComputer Software Engineering2019
  3. UploadVRVR Development2017
  4. Gray Area Foundation For The ArtsCreative Code Immersive2016
  5. CodePathiOS for Designers2015
  6. China Agricultural UniversityBE, Industrial Design2008 — 2012

Skills & more

Interaction Design38Physical Computing11Graphic Design35Photoshop23Photography22User Interface Design22Web Design20User Experience33Industrial Design8Web Development4Usability Testing6Design Strategy1
+7 moreSwiftVirtual RealityProduct DesignData VisualizationUser Experience DesignAdobe Creative SuiteAdobe Photoshop

Languages Chinese · English

From Effy's professional profile.

Same school

Also attended School of Visual Arts14

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

+ 8 more

Also attended Fullstack Academy2

Phil JacobSenior Associate at RampersandSusan WangPrincipal at Learn Capital

Also attended China Agricultural University1

Jordi-Ferran PeninaAssociate at Inveready Technology Investment Group

Shared employers

Also worked at Stealth Startup220

Andrew ChenGeneral Partner at Andreessen HorowitzErica VanInvestment Director at Intel CapitalHemamAdvisor at Clear VenturesHamish GarnettAssociate at Manta Ray VenturesFranz KoflerInvestor at Next Frontier CapitalGüimar Vaca SitticVenture Partner at FJ Labs

+ 214 more

Also worked at Gray Area Foundation For The Arts1

Alona EspositoInvestor at VMG Partners

Also worked at Samsung Electronics America4

L. Jasmine KimStrategic Advisor at DigiTx Partners LLCBaxter PerkinsSenior Associate at Ballast Point VenturesDamien BalsanGeneral Partner at Conexo VenturesReece PachecoPartner at Propeller VC

Also worked at Condé Nast26

Alexis OhanianFounder & General Partner of Seven Seven SixErica VanInvestment Director at Intel CapitalJosephine LuschInvestment Associate at Burda Principal InvestmentsAlex ConstantinopleChief Marketing Officer at GreycroftAndrea EchstenkamperVP of Marketing at HeavybitAmanda NiuGeneral Partner and CFO at Shine Capital

+ 20 more