Justin Mather
Solutions Architect at SLTWTR
Los Angeles, California, United States
Summary
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SeniorJustin Mather is a Solutions Architect and UI engineer with 11 years of experience designing and delivering high-quality, performance-focused web applications for enterprise and consumer brands. He has led front-end teams and architecture for major Shopify and headless builds (Skims, Spanx, General Mills, Fiji Water) using React, Vue, TypeScript and modern headless tooling, while driving framework upgrades, design systems, and complex third-party integrations. Known for improving delivery through mentorship, documentation, and reusable component libraries, he also optimizes large-scale sites for reliability and zero-downtime events. Based in Los Angeles, he combines hands-on engineering with cross-functional leadership—bringing product-minded thinking to technical trade-offs. A detail that often goes unnoticed: he pairs engineering velocity with operational rigor, shipping SSR and defensive TypeScript migrations that materially improved performance for sites with hundreds of thousands of monthly users.
11 years of coding experience
14 years of employment as a software developer
Spanish, English
Github Skills (52)
markdown10
trello10
org-mode10
graph10
knowledge-graph10
clojurescript10
git9
utility9
knowledge-management9
privacy9
css-library9
clojure9
oocss9
media-keys9
roamresearch8
Programming languages (12)
Github contributions (5)
itsjustmath/itsjustmath.github.io
Apr 2019 - Mar 2022
v1 of my personal website
Contributions:94 commits, 2 PRs, 40 pushes in 2 years 11 months
jekyll-sitereactnextjstufte-css
itsjustmath/roam-css
Dec 2020 - Mar 2021
Some [[roam/css]] goodies
Contributions:137 commits, 2 PRs, 133 pushes in 3 months
css
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