Where does Michael Hartl work?

Michael Hartl is Founder of Insoshi.

Where did Michael Hartl go to school?

Michael Hartl studied at Caltech (Ph.D., Physics); Harvard University (A.B., Physics); Y Combinator.

Michael Hartl

Founder

Founder at Insoshi

Los Angeles, California, United States

FoundedInsoshi · YC

Find your path to Michael

336 people in our graph share verified history with Michael — schools, employers, funds. One of them is your warm intro.

Adam ValkinunlockedMichael: together at Harvard University (1992–1996)

×11Michael: together at Harvard University

About

Michael Hartl authored the Ruby on Rails Tutorial and Learn Enough books, and previously founded Softcover (acquired in 2022) and Insoshi, an open-source social networking platform from Y Combinator's 2008 cohort.

Founder at Insoshi YC W08

Intro paths

Michael went through Y Combinator (Winter 2008) — any YC alum in your network can reach them through the YC community.

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In turn, Michael can intro founders to Insoshi's investors below.

Insoshi's investors · 1

Y CombinatorSan Francisco · $500K checks · since 2008

Co-founders at Insoshi

Long NguyenFounder

Experience

Self-employedIndependent Researchercurrent2022 — present
Learn EnoughFounder2015 — 2022Los Angeles Metropolitan Area
SoftcoverFounder2013 — 2022
Rails TutorialPrincipal2009 — 2022
InsoshiFounder2008 — 2009
Michael HartlPrincipal2005 — 2007
Quark SportsCofounder2003 — 2005
California Institute of TechnologyPostdoctoral Fellow2003 — 2005
California Institute of TechnologyInstructor in Physics1997 — 2003

Skills & more

Web Development22SEO9Entrepreneurship21Software Development11Research6Physics4Start-ups8Software Engineering1Science2Product Management2Publishing2Ruby on Rails29

+6 more

GitRubyJavaScriptPythonLinuxManagement

From Michael's professional profile.

Frequently asked questions

Who is Michael Hartl?: Michael Hartl authored the Ruby on Rails Tutorial and Learn Enough books, and previously founded Softcover (acquired in 2022) and Insoshi, an open-source social networking platform from Y Combinator's 2008 cohort.
Where does Michael Hartl work?: Michael Hartl is Founder of Insoshi.
What companies did Michael Hartl found?: Michael Hartl founded Insoshi.
Where did Michael Hartl go to school?: Michael Hartl studied at Caltech (Ph.D., Physics); Harvard University (A.B., Physics); Y Combinator.

Founder mafias

Y Combinator mafia10,230

Also came through, then founded or led a company.

Sam AltmanPresidentFounded Tools for Humanity +3 Garry TanPresident & CEOFounded Y Combinator +1 Jessica LivingstonCo-founderFounded Y Combinator Alexis OhanianPartnerFounded Reddit Fred EhrsamYC Summer 2012Founded Nudge +1 Matt HuangYC Winter 2011Founded Paradigm +1

+ 10,223 more

Caltech mafia153

Also came through, then founded or led a company.

Dario AmodeiProgress towards BSFounded Anthropic Fei-Fei LiDoctor of Philosophy - PhDFounded World Labs Bill GrossBachelor of Science (B.S.)Founded X1 +5 Chris VoigtPhDFounded Asimov +2 Gil ElbazBSFounded TenOneTen Ventures +1 Aditya RajagopalBachelor of Science (BS)Founded Esperto Medical +1

+ 146 more

Same school

Also attended Caltech275

Shaun MaguirePartner at Sequoia Capital Dario AmodeiCo-founder & CEO of Anthropic Fei-Fei LiCo-founder & CEO of World Labs; Sequoia Professor of Computer Science at Stanford Scott BillerInvestor at GV (Google Ventures)Seth LieblichInvestment Team at 8VC Susannah BarbeeVice President, Translational Immunology at Deerfield Management Company

+ 269 more

Also attended Harvard University2,000

Ron ConwayFounder of SV Angel Alfred LinPartner at Sequoia Capital Chris DixonFounder & Managing Partner of a16z crypto at Andreessen Horowitz Sarah TavelVenture Partner at Benchmark Danny RimerPartner at Index Ventures Laela SturdyManaging Partner at CapitalG

+ 1,994 more

Also attended Y Combinator2,000

Tarek MansourCo-founder & CEO of Kalshi Suhail DoshiFounder of Mixpanel; founder of Particle Subomi OluwalanaCo-founder & CEO of Convoy Arhaan A.Deeptech Fellow at Clear Ventures Collin WallaceGeneral Partner at Lobby Capital Victor SantosVictor Scout at One Way Ventures