Hello 
I’m Oliwier, a Product Designer with 5 years+ of experience with a background in graphic design and motion design.
I have designed products for companies such as Billin.app, T5M Ekipa, Rewardo.app, Warsaw University and Port Sopot and many others.
I work as as full-time designer and lead designer.
I have experience in mobile app design, web app design and design systems. I’ve collaborated closely with several companies to help them structure their own component libraries and enhance their
design operations.
What projects have I participated in?
Aplication to reviews
Billin is a social platform whose main functionality is sharing opinions with friends, enhanced by elements of gamification and user motivation through rewards. But that’s not all - Billin also serves a valuable purpose for businesses, allowing them to easily attract potential customers.
Business Panel
This tool, integrated with a mobile app for posting reviews, enables companies to manage profiles, publish content, analyze statistics, and create marketing campaigns similar to Meta Ads or Google Ads. Thanks to its simple and modern interface, businesses can effectively control their image, reach their target audience, and measure the effectiveness of their activities — all in one place.
Marketing application
The application was designed in collaboration with “Ekipa Holding S.A.” (the largest group of influencers in Poland) as part of the “Your 5 Minutes” program, serving primarily as a voting tool, but not only that. It played a key role during the show’s broadcast by gamifying the viewing experience. The app successfully motivated users to engage with the platform and keep watching the program.
Financial App
The project involves creating a modern banking ecosystem consisting of both a mobile and a web application. Both solutions are designed to provide a consistent user experience regardless of the device. The mobile app focuses on the speed of performing key operations - such as payments, balance overview, and card management - while the web version expands these capabilities with deeper analytics, advanced settings, and comprehensive management of financial products. The entire system is built on a unified design system and a modular interface, enabling smooth navigation and personalization.
Dedicated Loyalty Apps
Loyalty applications that help small businesses improve the efficiency of selling their products and services. The applications are equipped with an intelligent loyalty system that allows users to collect points that can be exchanged for rewards and more. All loyalty applications of small businesses also appear in the main application “Rewardo,” providing access to a map and the locations of individual venues.
Design system for projects
I created and implemented a comprehensive design system that became the foundation for all digital products developed within the organization. The goal of the project was to create a cohesive visual language and standardized UI components that enable rapid and scalable development of new features without compromising the quality of the user experience.
