Tim Zwolak

I'm a full stack web developer based in Denver. I've been writing software professionally for over a decade, currently as a Senior Platform Engineer at Ibotta.

Before Ibotta I was at Xentity as a Geospatial Developer on GeoPlatform.gov — Angular, Node, AWS, and a lot of ISO 19115 metadata. That's where I picked up most of what I know about GIS and map tile pipelines, and it's still the part of the job I like best. Before that, a few years at FJA-US on a TypeScript/React frontend backed by a Java/Spring API. Earlier than that, Charter Communications, and an IT contract supporting a laboratory information system for the Michigan Department of Community Health.

I'm a career switcher — undergrad was biochemistry at Michigan State. The lab work didn't stick; the scripting around it did. Outside of the day job, I'm a licensed amateur radio operator (FCC Extra class) and I spend a lot of weekends hiking up peaks for Summits on the Air. Most of my side projects end up being maps of one kind or another.

Currently working with

What I'm doing now

• Day job: platform engineering at Ibotta.
• Maintaining a web map for SOTA summits in the US.
• Picking up Rust, slowly, mostly with Claude as a study partner.
• Operating HF and chasing summits when the weather cooperates.

Credentials, for the curious

• BSc Biochemistry, Michigan State University (2009).
• AWS Solutions Architect — Associate.
• FCC Amateur Radio — Extra class.
• EMT-Basic (lapsed, but the knots stuck).

Get in touch

Email is the best way to reach me. I'm on GitHub more than anywhere else.