Frank Baalbergen is a seasoned cybersecurity leader with 12 years of experience, currently serving as CISO at Siemens Digital Industries Software after leading Mendix’s security organization through multiple stages of growth and compliance transition. He directs a team of 30+ professionals across information security, certifications, product classification and procurement, blending governance and hands-on technical oversight to protect customer data and ensure continuity. Frank’s background spans DevOps and consulting roles, giving him practical expertise in secure engineering, risk management and audit-ready controls. He contributes to open source networking tooling—improving IPv6 support and robustness in the Keepalived project—illustrating a continued affinity for low-level systems work. Based in The Hague, he combines pragmatic security programs with a builder’s mindset, able to translate complex technical requirements into operational, auditable processes.
12 years of coding experience
13 years of employment as a software developer
Bachelor's degree Information Technology, Bachelor's degree Information Technology at Hogeschool Leiden
Contributions summary:Frank contributed to the Keepalived project by addressing several issues and implementing new features. Their work included modifying the `check_http.c` and `check_http.h` files to handle IPv6 addresses correctly, as well as enhancing the `genhash` utility with IPv6 support. Additionally, they improved the code's robustness by adding checks for undefined variables and implementing default values, while also refactoring formatting for code consistency. Furthermore, the user fixed a bug in the VRRP state and added a check to notify the user of state changes.
Contributions:2 pushes, 12 branches in 1 year 1 month
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Frank Baalbergen - CISO at Siemens Digital Industries Software