I’m Mateusz Kozłowski, your partner in digital innovation.

I enable companies to drive business growth via user-centric design empowering product teams.


Latest case studies

Revolutionizing fintech UX: from 34 to 54 in 7 months

Product Design Lead / Medius – 2024

Led a comprehensive UX transformation at Medius, elevating the UX maturity score by 59% in just 7 months. Implemented a game-changing design system. Reshaped how a fintech leader approaches user experience.

Making personas great again with ADEPT

Product Design Lead / Medius – 2024

Developed ADEPT, a data-driven persona framework, that cuts through traditional UX fluff, ensuring every design decision is backed by actionable insights and real user behavior.

Revolutionizing organization with ADEPT

Product Design Lead / Medius – 2024

Transformed how teams approach UX design by introducing ADEPT, an innovative persona template that fosters alignment, accelerates decisions, and consistently delivers user-focused results.

Leveraging a design system to safeguard over 1 Million USD

Product Design Lead / Medius – 2024

I oversighted the creation of the Medius Design System, which enhanced design consistency and efficiency across products. This system, developed over 450 days with over 1,000 icons and 169 controls, set new standards in our digital landscape by ensuring uniformity and excellence in user experience

Establishing a UX team and enhancing its effectiveness

Product Design Lead / Medius – 2024

I built a high-performing UX team from the ground up, aligning our efforts with business goals and dramatically improving design processes. Through fostering collaboration and implementing a structured design approach, the team became a core part of our product development, significantly enhancing user satisfaction and operational efficiency.


My core values: guiding principles for strategic design and leadership

Team empowerment

Successful UX guidance goes beyond supervising design. I motivate and empower the team to achieve their utmost abilities by creating a space that encourages trust, teamwork, continuous education, and innovative thought.

Collaboration

By aligning our efforts around common goals, I enhance collaboration and significantly increase the chances of achieving our objectives together. This shared vision unites the team in creating impactful user experiences and driving projects forward with a cohesive strategy

Driving innovation

While user needs are central, I don’t simply react to every client request. I actively shape business goals, balancing them with client needs. This strategy ensures we build for the future, addressing immediate demands while focusing on sustainable, long-term success.