Jan Klosowski : UX Design

Over 15 years of experience in banking, fintech and crypto:

Brown Brothers Harriman → Zen → Volt → Deltabadger

In 2020, I started my side project, Deltabadger, that eventually became my main focus and helped users invest over $72M into Bitcoin and other digital assets. Due to growing regulatory burden of MiCA, by the end of 2025, I decided to release the it as an open source.

Now, I'm open for new opportunities. I'll be delighted to bring the same level of attention to detail to your product, and share 15 years of experience with your team.

Let's talk: [email protected] or telegram