Matija Culjak
Senior Frontend Engineer at 3B infra
Zagreb, Croatia
Summary
🤩
Rockstar🎓
Top SchoolMatija Culjak is a Senior Frontend Engineer with 11 years of experience who specializes in React and TypeScript, currently leading frontend efforts at 3B Infra to modernize a web suite for railway maintenance. He combines hands-on implementation with architectural direction—authoring state management guidelines, refactoring a reusable React UI library, and standardizing the frontend stack to speed onboarding and improve developer experience. Matija has a track record of performance-first improvements (cutting a mobile app’s cold start from 2.5 minutes to 65 seconds) and building real-time, offline-capable enterprise apps for industrial domains. He mentors teams, drives best practices in code quality and design patterns, and advocates pragmatic micro-frontend approaches. Based in Zagreb, he balances technical leadership with individual contribution across full project lifecycles, from headless CMS integrations to live data workflows. Outside work he’s an avid trail runner and cyclist, reflecting a steady, endurance-minded approach to engineering challenges.
11 years of coding experience
7 years of employment as a software developer
High School, Graphic and Printing Equipment Operator, General Production, High School, Graphic and Printing Equipment Operator, General Production at Škola za umjetnost, dizajn, grafiku i odjeću ZabokBachelor's Degree, Multimedia, design & application, Bachelor's Degree, Multimedia, design & application at Veleučilište u Varaždinu
English, Croatian, Japanese
Github Skills (64)
tree-structure10
submenu10
react-component10
menu10
npm9
npm-package9
flexbox-grid9
api9
react9
plugin8
wordpress-plugin8
slick-carousel8
gulp8
jquery-plugin7
javascript7
Programming languages (6)
Github contributions (5)
mladimatija/nextjs-github-repo-search
Feb 2023 - Feb 2023
Contributions:23 commits, 18 pushes in 16 days
mladimatija/iso-639-1
Feb 2021 - Mar 2025
ISO-639-1 codes
Contributions:2 pushes in 4 years 1 month
639-1isoiso-639-1iso-639iso3166
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