As a computer programmer by profession, I spend a significant portion of my time creating computer software. Most of my work is freely available. The single software project I have spent most of my time on is the sip-router project, a collaborative effort to develop a system for real-time communication over the Internet. If time permits I also contribute to other free software projects.

Since January 2010 I am a visiting researcher in the Internet Real-Time Lab at Columbia University. There, we conduct research in the areas of computer networking and multi-media communication over the Internet. My research focus is on design, evaluation, and implementation of Internet protocols. I am also interested in content-oriented networking and on new networking architectures in general.

In my spare time I enjoy reading books, watching movies, or taking photos. My favorite Czech writer is Karel Capek. In New York I discovered E.B. White and fell in love with his essays. I like the BBC show Red Dwarf and most of the movies the Coen brothers have made.