Experience across web, iOS, and Android. Day-one design hire and sole designer for 6 years at Jerry (Y Combinator, S17), where I designed and scaled the entire UX and UI from zero to millions of users through continuous A/B testing and data-driven iteration.

Deep expertise in User Experience (UX) Design, User Interface (UI) Design, UX Research, Interaction Design, Design Systems architecture, and Conversion Rate Optimization (CRO). A maker first: I personally design and ship the work — every flow, screen, and interaction — accelerated by AI-assisted design workflows, with the strategic judgment of someone who has owned design at company level. Bilingual (English / Polish) with experience across the USA, UK, and Europe.

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