Dennis has an extensive background in Linux and Unix with a focus on security, and has learned that it is important to remember the parts of the system that are easy to forget.
– I got hacked in 2005, and switched from Windows to Linux overnight. I haven't looked back since.
He has had his head on the keyboard since he was 7 years old, and has 15 years of experience in the IT industry.
– It started with Doom on MS-DOS 5.0, and since then I've fallen further and further down the rabbit hole.
The common denominator in his career is extensive experience with mission-critical systems at service providers of all sizes. Everything from small businesses to large security organizations.
He has had various roles in operations and security at NSM and other government agencies.
– Some organizations require the security of their systems to be taken to a whole new level. It is not enough to just be compliant in such organizations.
Therefore, he often penetration tests security solutions to verify that they are actually secure. He is a fan of the "trust, but verify" principle. It ensures that the solutions follow best practices.
Summary
Dennis has an extensive background in Linux and Unix, where he has focused on security. He can point to a life with data and 15 years of experience in the IT industry. The common denominator in his career is heavy experience with mission-critical systems at small and medium-sized service providers, and various roles with operations and security from the National Security Authority and other government agencies where security must be at the highest level. Professional keywords are advanced operation of Linux and Unix platforms such as sysadmin, DevSecOps, kubernetes, orchestration and virtualization, database operation (PostgreSQL) and OpenStack. He loves penetration testing because it gives him the foundation to build the most secure systems.
