Mateusz Krzeszowiak
Lead Technical Architect, Performance at Shopify
Poland
Summary
🤩
Rockstar🎓
Top SchoolMateusz Krzeszowiak is a Lead Technical Architect specializing in web performance with 11 years of experience making e-commerce faster and more reliable. Currently leading performance architecture at Shopify after senior roles there and at Allegro.pl, he blends hands-on frontend engineering with company-wide performance strategy and tooling. He has a track record of squeezing milliseconds out of complex retail frontends, building component-based sites and developer environments that scale across teams. Based in Poland and shaped by an engineering degree from AGH, he pairs deep technical rigor with pragmatic work—often turning observability data into prioritized optimizations that reduce real-world conversion loss.
11 years of coding experience
8 years of employment as a software developer
AGH University
Polish, English
Stackoverflow
36reputation
14kreached
2answers
0questions
Github Skills (181)
scroll10
swc10
online-store10
bundler10
browserify10
jscodeshift10
adobe10
cqrs10
core-web-vitals10
internationalization10
magento10
localization10
css-position10
developer-tools10
lighthouse10
Programming languages (10)
Github contributions (5)
krzksz/phCompile
Feb 2015 - Mar 2015
Contributions:80 commits, 52 pushes, 1 branch in 12 days
krzksz/any-elements
Feb 2019 - Mar 2025
Lightweight component library build to enable custom elements like features for any selectors you like.
Contributions:15 pushes, 2 branches, 5 tags in 6 years 1 month
reactselectorselementsbuild-libraryui-components
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.