About

CTO at upcell. Software Engineer. Based in Maine.

I’m Justin Sweeney — currently the CTO at upcell .

I’ve spent decades building software, including about a decade at ZoomInfo, and I still love the craft: designing systems, shipping products, and sweating the details that make software reliable and useful.

Outside of work, I’m in Maine with my wife and my pup Zora.

This blog primarily exists to share my own interests, thoughts, and opinions as they develop.

All opinions are my own and do not reflect the stance of any organizations with which I am affiliated.

What I write about

I may blog about:

  • Technology & software engineering (systems, product, reliability, tools/technology)
  • AI (practical applications, risks/tradeoffs, developing opinions)
  • Finance (markets, incentives, decision-making)
  • Politics (sharing my thoughts on current events often as a way to get things off my chest)

Find me