Denis obtained a Doctor of Philosophy (PhD) degree in formal modeling of access control systems from Tomsk State University (TSU) in 2009 and the Docent title in computer security in 2012. Before joining Protocol Labs, Denis worked as a security researcher lead at Wallarm, where he was responsible for the research, design, and engineering of web application security mechanisms.

Denis has spoken at many practical security conferences such Black Hat Asia, Insomni’hack, Power of Community, Area41, DeepSec, and SecurityFest.