Yaroslav Rosomakho is Chief Scientist at Zscaler, where he leads research and strategy across emerging technologies, secure networking, and cryptographic protocols. He is an active contributor to the IETF, member of the Internet Architecture board and chair of SEAT and HPKE working groups. In addition to that he contributes to TLS, QUIC, HTTP, WIMSE and MASQUE. Yaroslav has a background in building large-scale security systems and has held leadership roles at Netskope and Arbor Networks. He is passionate about bridging deep technical insight with practical deployment strategies.