Joel Spolsky is an American software engineer, writer, and entrepreneur whose career runs through three distinct layers of the software industry: he was the program manager who drove Visual Basic for Applications onto the Microsoft Excel team, he wrote the Joel on Software essays that became a generation's canon on how software actually gets built, and he co-founded two of the most-used products on the developer web — Stack Overflow and Trello — out of a deliberately small New York company that behaved like an incubator before the word was fashionable.
Identity and formation
Born in 1965 in Albuquerque, New Mexico, Spolsky moved with his family to Israel at fifteen. He finished high school there, served in the Israel Defense Forces' Paratroopers Brigade, and was among the founders of Kibbutz Hanaton in Lower Galilee. Returning to the United States in 1987, he spent a year at the University of Pennsylvania before transferring to Yale, where he graduated in 1991 with a BS summa cum laude in computer science.
Microsoft hired him directly onto the Excel team, where from 1991 to 1994 he designed Excel Basic and drove the company's Visual Basic for Applications strategy — he describes himself as the program manager responsible for shipping VBA in Excel 5.0. In 1995 he moved to New York City for Viacom and then Juno Online Services, an early internet company whose rise and stall he would later mine for essay material.
The blog that became canon
In 2000 Spolsky co-founded Fog Creek Software with Michael Pryor and, almost incidentally, launched Joel on Software — described as one of the first blogs run by a business owner. The essays were unlike anything else in the trade press: funny, concrete, opinionated, and built from war stories. "Things You Should Never Do, Part I" (April 2000) argued that rewriting code from scratch is the single worst strategic mistake a software company can make, because working code embodies years of found-and-fixed bugs and because "it's harder to read code than to write it." "The Joel Test" (August 2000) mocked heavyweight process certification with twelve deliberately "sloppy" yes-or-no questions a team can answer in three minutes. "The Law of Leaky Abstractions" (November 2002) gave the industry a durable phrase: all non-trivial abstractions leak, so abstractions save working time but never learning time.
Four Apress books carried the writing to print — User Interface Design for Programmers (2001), Joel on Software (2004), Smart and Gets Things Done (2007), and More Joel on Software (2008) — and the audience the blog built became, in effect, his distribution engine for everything that followed.
Fog Creek: the accidental incubator
Fog Creek began as a consulting company, and its origin story is one he tells on himself: the consulting market "disappeared in November of 2000," he told Jessica Livingston in Founders at Work, so the company wrapped up an internal bug tracker and started selling it as FogBugz. The pattern held for two decades — a profitable core funding small-team experiments, with winners spun out rather than folded in. Copilot, a remote-assistance tool built by interns, was documented in the 2005 film Aardvark'd: 12 Weeks with Geeks, which he co-produced and appeared in. Other bets (CityDesk, and a never-written product called Tintin) failed quietly.
Underneath sat a stated operating system he repeated across companies: build "a company where the best developers want to work" — private daylit offices, catered lunches, Aeron chairs, fully paid insurance — on the theory that humane treatment is an engineering strategy, not a perk.
Stack Overflow and Trello
In April 2008 Spolsky and Jeff Atwood began recording their weekly phone calls as the Stack Overflow podcast, building in public a free programming Q&A site explicitly aimed against paywalled help sites. It opened September 15, 2008, after a five-week beta, and grew into the Stack Exchange network. Spolsky served as CEO from 2010 to 2019, then chairman; on June 2, 2021, Prosus announced its acquisition of Stack Overflow for roughly $1.8 billion, and he stepped down from the chairmanship.
Trello followed the same arc: a two-person prototype inside Fog Creek in early 2011, a launch at TechCrunch Disrupt that September, 4.6 million users by mid-2014 — when he spun it out as Trello Inc. with minority capital co-led by Index Ventures and Spark Capital and Michael Pryor as CEO — and a January 2017 acquisition by Atlassian for approximately $425 million. Fog Creek itself hired Anil Dash as CEO in late 2016, renamed itself Glitch in 2018 after its developer-community product, and sold to Fastly in May 2022 — at which point Spolsky stepped down as chairman there too.
After the exits
He is now co-founder of HASH, with Dei Vilkinsons and former Fog Creek CTO Jude Allred, and writes occasionally about its Block Protocol — an open standard for reusable web blocks that extends his long-standing preference for open protocols over platforms. He married his husband, Jared, and lives on Manhattan's Upper West Side; his own bio lists Arduino projects, LED art, Barry's Bootcamp, and Burning Man among his preoccupations.
What the record does not settle
The authoritative record gives only his birth year. The Fog Creek–Atwood venture's terms were never itemized. Sources disagree on whether his Stack Overflow CEO tenure began in 2008 or 2010. Fog Creek's finances were self-reported rather than disclosed, and how much of Stack Overflow's and Trello's outcomes to credit to the blog's audience is asserted often — including by Spolsky — but not independently measurable.
This index was compiled from public sources and does not imply the subject's endorsement. Citations live in the packet's source catalog.