Sven Guester
Honeywell
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WORK HISTORY
@Honeywell
EDUCATION
Wilhelm Büchner Hochschule
ohne Abschluss, Wirtschaftsinformatik
Mannesmann AG
Energieelektroniker, Betriebstechnik
SKILLS
ABOUT SVEN GUESTER
Senior ICT & Cybersecurity Operations Manager with 25+ years of experience in IT, infrastructure, and building automation environments. Currently responsible for ICT Service Security operations across DACH & Benelux at Honeywell, leading an international team and ensuring secure, stable, and scalable operation of customer environments in complex OT/IT landscapes. My focus is on cybersecurity, operational excellence, and risk reduction — working at the intersection of IT and building automation systems. I support customers in assessing and improving their security posture, while driving internal standards, accountability, and execution across teams. I combine hands-on technical expertise with leadership responsibility, covering infrastructure, network security, cloud environments, and large-scale enterprise projects across industries such as critical infrastructure, healthcare, and public sector. Known for a pragmatic and direct approach, I focus on solutions that work in real-world operations — not just on paper.
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