We– Daniel and Kasia, co-founders of nextgen design –design
digital products that make business sense.
Designing for teams like these
New products, redesigns,
and everything in between.
We work with teams launching something new, improving existing products, and redesigning the parts that need to work better – for the business and for users.
A few case studies
worth a closer look.
What it's like to work with us.
It's rare to meet experts whose skills go far beyond the expected. Kasia and Daniel approach every challenge – even "just UI" – with care, precision and full use of their knowledge and experience, delivering analysis, conclusions, recommendations and thoroughly developed UX/UI design.
Working with Daniel and Kasia was one of the key factors behind the success of our projects at Wirtualna Polska. Their deep understanding of design and UX, combined with the ability to translate complex ideas into practical solutions, made our products both beautiful and highly functional.
ex-Head of Growth, Wirtualna Polska
Together we launched several new websites and transformed existing ones, significantly improving UX and revenue. Their passion and expertise make them invaluable partners.
Daniel is a wellspring of great ideas – meticulous, brave in challenging conventions, and always timely. His communication skills are top-notch, making teamwork smooth and client relations effective.
ex-VP Product, Wirtualna Polska
They have a unique talent for aligning competing stakeholder interests. I appreciated their user-first mindset – the final results were always top-notch. This duo is always reliable.
When you work with Kasia and Daniel, it's clear that users come first. You see it not just in the design, but in the process – open, empathetic, and focused.
Their experience and intuition were key in market research, competitor analysis and testing, resulting in intuitive and engaging interfaces. A guarantee of top quality.
Benefit Systems
Working with Kasia and Daniel, I often thought: "Damn, they're right." They really grasp the complexity of business – and pull an ace from their sleeve when it counts.
A two-person studio, built on product experience
We're Daniel Aniszewski (opens in new tab) and Kasia Sitkowska (opens in new tab) – designing digital products with senior-level experience and a close, hands-on way of working.
Before starting the studio, we worked inside large tech and media organizations on products used daily by millions of people. Daniel started in UX/UI design and later became Head of Product Design. Kasia moved from web development into product design, bringing a strong understanding of how products get built and shaped.
Having worked both inside product teams and alongside them, we understand how decisions get made, where they get stuck, and how to move work forward in a way that fits the product and the business.