Associate professor at Masaryk University and senior researcher at CESNET. Chairs the Czech national Grid infrastructure, lead or participated in many national and international projects related to high performance and distributed computing (Grids) and their applications. In 2007 served as chair of the Project Management Board of EGEE II, member of the EGEE III PMB representing Central Europe. Involved in EUAsiaGrid and member (CESNET team leader) of the EGI_DS project. Research interests are large scale distributed computing, middleware (monitoring) and security, and high speed networks and multimedia. Published around 100 scientific papers.