Hello! I’m Przemek.
Building modern
frontend experiences
with React & JavaScript
Frontend developer focused on clean UI, performance and scalable JavaScript applications.
Selected Work
DailyPetCare - Pet Care App
2025 - PresentPersonal project
Pet owners often juggle medication schedules, vet visits, walks and photos across scattered notes and apps, leading to missed doses, forgotten appointments and lost memories.
Complex Validation Forms & Flows
2022 - PresentPKO Bank Polski
Internal banking tools relied on long, multi-step forms with strict regulatory and validation requirements, built inside a security-restricted environment (no external scripts, strict access and audit controls). Edge cases were mostly caught manually, and validation bugs occasionally reached production.
Playwright E2E Test Suite
2022 - PresentPKO Bank Polski
As the number of critical user flows grew, regressions increasingly slipped into releases. Manual regression testing before each release was slow, inconsistent, and didn't scale with the size of the app.
E-commerce Frontend & PWA
2021 - 2022Creatuity - client: Worthington Direct
The client's storefront - a large B2B/B2C catalog of office and institutional furniture - had slow page loads and a non-native mobile experience, which hurt engagement across a large, image-heavy product range.
About
I’m a frontend developer working with JavaScript, React and Next.js. I focus on building clean, accessible and performant interfaces, and turning real product requirements into maintainable code.
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