Dennis is responsible for Mosaic’s cyber portfolio across Continental Europe and oversees the regional service company in Europe. He also serves as Head of AI, Underwriting, leading Mosaic’s global initiative to advance the responsible use of artificial intelligence across underwriting and claims, with a focus on improving risk selection, pricing accuracy, and AI-driven product innovation.

Previously, Dennis worked as a cyber and crime product manager at Finlex, an insurtech specializing in financial lines, and as lead cyber underwriter and referral point for Germany, Austria, and Central and Eastern Europe (CEE) at AXA XL. He began his career at Catlin Europe and gained underwriting experience across multiple lines of business, including aviation, casualty, and marine. Dennis is a Fellow of the Chartered Insurance Institute (CII).