Dennis has 15 years of experience with mission-critical systems at small and medium-sized service providers, and various roles in operations and security from the National Security Authority and other government agencies where security must be at the highest level.

His professional keywords are advanced management of Linux and Unix platforms as a sysadmin, DevSecOps, Kubernetes, orchestration and virtualization, and database management (PostgreSQL). He enjoys penetration testing because it gives him the foundation to build the most secure systems.

– I consider myself good at the important basic things in the stack that people often forget, and I know how systems work from the ground up. For me, it's Linux and Unix all the way. I haven't touched Windows since I was hacked in 2005.

Dennis's expertise is in short supply in the market. In a modern IT world with microservices, skills are needed on how to build security with Kubernetes around modern applications and services that communicate with each other. This often requires a slightly different skill set than traditional network-based security.

Sicra has several such resources, and Dennis will be part of a specialist group that we are building around this topic.