Senior Cybersecurity Engineer OT – Network Security We are currently looking for a Senior Cybersecurity Engineer OT – Network Security for a major European engineering group, who support complex national and international infrastructure projects with high security and safety requirements. Your Role Design and implement robust OT network security concepts Secure industrial networks using IDS/IPS, NDR, NAC, and SIEM Protect wired, fieldbus, and wireless technologies (5G, GSM-R) Design Zero Trust architectures, including SASE and ZTNA Implement security and safety requirements aligned with IEC 62443 Apply railway‑specific standards such as CLC TS 50701 Ensure the secure and reliable operation of safety‑critical systems Your Profile Degree in STEM or equivalent professional experience Strong hands‑on experience in OT and network security Solid knowledge of IEC 62443 Experience securing remote access Fluent German and good English Structured, conscientious working style and strong team skills Nice to have: Experience with Next‑Generation Firewalls (Application Layer Gateways) Exposure to cybersecurity requirements in railway environments (Train, Track, Factory) #J-18808-Ljbffr