Product-minded UX/UI designer & front-end developer

Creative professional based in Poland with 15+ years of experience in UX/UI design and front-end development, specializing in e-commerce storefronts, brand websites, and digital products.

Available for new projects
Jarosław Karnas – product designer and front-end developer
Certified Expert Front-End Developer
Adobe
Certified Expert Conversion Optimization
CXL

Expertise:

End-to-end product execution - from UX/UI design to front-end implementation

UX/UI design and front-end development for e-commerce storefronts, brand websites, and digital products - from structure and interface design to clean, production-ready code.

Experience working with platforms such as Magento (Adobe Commerce), Shopify, and modern front-end frameworks.

UX/UI Design

User experience and interface design for e-commerce storefronts, brand websites, and digital products. Information architecture, wireframes, and interface systems built with usability and clarity in mind.

Front-End Development

Implementation of production-ready interfaces using clean, maintainable front-end code. Custom themes, responsive components, and modern front-end architecture.

Customer Experience (CX)

CRO through optimization of navigation structure, product pages, the shopping journey, landing pages, and site speed.

Ongoing Front-End Support

Ongoing improvements for live websites and digital products. Bug fixes, interface refinements, new components, marketing pages and email templates, performance improvements, and front-end updates.

Product & Website Builds

Complete websites and digital product builds using modern front-end frameworks.