Ondřej earned a degree in Computer Science from the Faculty of Mathematics and Physics at Charles University, and an MBA from the University of Pittsburgh's Joseph M. Katz Graduate School of Business. During his studies at Charles University he started working for IPEX a.s. Later he became a Technical Director and a member of the board there.
Ondřej has been the CEO of the CZ.NIC Association since December 2004. In addition to his role at CZ.NIC, he serves as chairman of the Board of the NIX.CZ Association (Neutral Internet Exchange), a member of the leadership of the international association RIPE NCC, and a board member of Euro-IX (European Internet Exchange Association). He was a member of the ccNSO council (Country Code Names Supporting Organisation) at ICANN (Internet Corporation for Assigned Names and Numbers), where he is now a member of the Security and Stability Advisory Committee (SSAC).
In 2022, ICANN named Ondřej Filip "the Crypto Officer", so he is one of 14 trusted representatives of the international Internet community who oversee the process of signing the DNS root zone. He also served on the Multistakeholder Advisory Group, an advisory body to the UN Secretary-General for the Internet Governance Forum, as well as on the Board of DNS-OARC (The Domain Name System Operations Analysis and Research Center), which he chaired for four years. Ondřej has been a member of the Cybersecurity Hall of Fame since 2019, which honours individuals who have made a significant or long-term contribution to cybersecurity in the Czech Republic.
In his spare time, Ondřej enjoys playing basketball and developing open-source software. He is fluent in English and also speaks German and Russian.