Christian began his career as a Network and Systems administrator and has subsequently spent time as the technical lead for a security-focused managed service provider where he designed, deployed and managed dozens of networks. He has had the opportunity to secure Windows domain environments, Linux servers, and implement all aspects of network security. Joining Cisco in 2016, he worked as a TAC engineer supporting the Web Security Appliance, and is now working as a technical marketing engineer for the same product. He holds a CCNP in routing and switching, and his CCIE in security.