Introduction
After stepping down as CEO of Stack Overflow, Joel Spolsky has entered a phase he describes as a sabbatical rather than retirement. Living in Manhattan’s premier Naturally Occurring Retirement Community (NORC), he remains deeply engaged in the tech world—serving as chairman of three distinct companies. This article explores his current roles and the innovative work happening at Stack Overflow, Glitch, and HASH.
The Sabbatical Phase
Spolsky emphasizes that his departure from the CEO role is a sabbatical, not a retirement. He has handed the reins to Prashanth Chandrasekar, who is restructuring the company for the better. “It’s really satisfying to realize that the best possible outcome for me is if he proves what a bad CEO I was by doing a much better job running the company,” Spolsky notes. Freed from daily operations, he now enjoys a weekly meeting with Chandrasekar and occasional customer calls, while discovering how little he knew about running medium-sized firms.
Chairman of Stack Overflow
As chairman, Spolsky still stays connected to the company he co-founded. Under new leadership, Stack Overflow continues to evolve, but his role is now more advisory than hands-on. He refrains from detailing changes, letting the new CEO’s actions speak for themselves.
Glitch: Empowering the Web’s Quiet Majority
Glitch, formerly Fog Creek Software, has been rebranded as “the friendly community for building the web.” Under CEO Anil Dash, the platform has grown to millions of apps and secured significant funding. Spolsky believes that every era needs a simplified programming environment for developers who don’t require complex administration features like git branches or multistep deployment. Glitch targets this quiet majority—those who simply want to write code and see it run.
HASH: Open-Source Simulation for Complex Systems
The third company, HASH, remains somewhat under the radar but recently published detailed information on its website. HASH is building an open-source platform for agent-based simulations. It models problems where the behavior of each individual agent is known, but the overall outcome is unpredictable. For instance, a city planner could simulate traffic to justify a new bus line. Instead of assuming each bus removes 50 cars, the model accounts for commuters deciding to use the bus only if it saves time and money. By simulating thousands or millions of potential bus routes, planners can identify which ones actually reduce congestion.
This type of modeling is computationally intensive but works even when closed-form formulas are unavailable—for example, in epidemiology, economics, or urban planning. HASH aims to make such simulations accessible to researchers and decision-makers.
Conclusion
Joel Spolsky may have stepped back from day-to-day CEO duties, but his influence remains strong across three innovative companies. Whether through advisory roles at Stack Overflow, championing Glitch’s simplified web development, or backing HASH’s powerful simulation tools, he continues to shape the tech landscape—proving that a sabbatical can be just as busy as a full-time job.