Sean Mandable

Senior software engineer based in Connecticut. I’ve been building things on the web since around 2008, and noticing when things are a little off for about as long.

Most of the work on this site started with something small that was wrong: a typo, a twenty-five-minute build, a brown sign I couldn’t identify from the highway, an accessibility grade that was a D when it should have been an A. Fixing that kind of thing is most of the job, and it’s usually what gives a team its afternoons back.

Since July 2026 I’ve been lead developer at Univar Solutions, a chemical distributor: iPhone and iPad apps on top of SAP, and an Angular 13 app I’ve already rewritten in Nuxt 4. Before that I spent 2021–2025 leading the in-house rebuild of TriNet’s corporate website. Vue 2/Nuxt to Vue 3/Astro, D to A on accessibility, and a build pipeline that went from 25 minutes to 1. Then DiscoverOrg (now ZoomInfo), a few years of independent consulting, and a winding road through a couple of agencies and front-end gigs going back to the 2000s.

The job hasn’t changed much in that time: it still has to work, it has to be fast and accessible, and the code should be easier to work in when I leave than when I arrived.

The last few years added a second toolkit. I taught myself Swift and SwiftUI because the side projects had started turning into apps instead of websites. They’re native, they keep your data on the device, and I’m as picky about them as I am about the code I get paid for.

Those apps so far: Brown Sign, Debt Descent, Saddle, ReKey, ModernPAR, and Kelvin Caliper. When I’m not building one, I’m writing, or hiking, or ignoring all of the above.

Open to conversations about senior engineering or architect roles.