Summary
Andrzej Kowalczuk is a Senior Frontend Developer with eight years of professional experience and over five years specializing in Angular, TypeScript, NgRx and modern frontend toolchains. He has delivered production-grade interfaces for banking and enterprise clients, combining strong state-management and testing practices (Jest, unit/e2e) with polished UI work using Angular Material and SASS. Comfortable with both legacy JavaScript (ES5) and modern ES6+ patterns, Andrzej brings pragmatic OOP, HTTP/REST and DOM expertise to complex SPAs. Currently based in Białystok, Poland, he transitioned from rapid-growth consultancy roles into a senior position at UniSysTech Consulting, showing adaptability across teams and domains. Colleagues value his steady engineering discipline and ability to bridge product needs with maintainable frontend architecture.
9 years of coding experience
6 years of employment as a software developer