# ABOUT.md
Career, versioned.
I’m Sean — 36, in Columbus, Ohio. I’ve spent twelve years learning that the highest-leverage thing an engineer can build is the system that builds everything else. Here’s the release history.
## CAREER CHANGELOG
2025 —
Lead Engineer · Marriott International
Marriott Bonvoy Loyalty platform. Front-end architecture at the scale of 186M members; harnessing AI tooling for the team.
+ current release
2019 – 25
Senior Software Engineer · WillowTree
Six years across client work: design patterns, platform tooling, and front-end delivery for enterprise brands. Promoted from Platform Software Engineer (v4.0 → v4.5).
2016 – 19
Software Engineer · Abercrombie & Fitch Co.
Web Content Developer → Software Engineer. Storefront front-end at retail scale; first taste of systems thinking.
2014 – 16
Front End Developer · Smart Harbor & CBC of Ohio
Early releases: web design and front-end development, learning in production.
2008 – 13
B.Tech, Visual Communication Technology · BGSU
Where design and code first merged. Founding father, Tau Kappa Epsilon chapter.
## DEPENDENCIES
- react
- next.js
- typescript
- web-components
- storybook
- rtk-query
- aem
- azure
- harness
- dynatrace
- figma
- mentoring@latest