OT Security Expert (m/f/d)

Ihre Aufgaben:

• Define and establish global OT cyber security standards with emphasis on network segmentation based on ISA-95/IEC 62443 zone & conduit models
• Design secure architectures tailored for industrial environments, focusing on device hardening for PLCs, SCADA, HMIs, and edge devices
• Implement OT cyber security programs in brownfield environments, including assessment and remediation of legacy systems and gradual segmentation of flat industrial networks without disrupting operations
• Develop and roll out network segmentation strategies across multi-site environments using firewalls, jump hosts, and secure remote access concepts to minimize attack surfaces
• Translate global cyber security standards into pragmatic site-level implementations by creating templates, blueprints, and rollout roadmaps
• Coach and collaborate with local engineering and IT/OT teams to embed security best practices
• Lead workshops, risk assessments, and design sessions to communicate OT security concepts clearly to non-expert stakeholders
• Collaborate effectively with cross-functional teams including IT, OT, engineering, plant management, and global/local cyber security functions

Ihre Qualifikationen:

• Profound knowledge of OT cyber security frameworks and regulations such as IEC 62443 (including parts 1-x, 2-x, 3-x, 4-x), NIS2 Directive, NIST Cyber Security Framework and SP 800-series, ISO/IEC 27001
• Relevant experience in secure network segmentation design and rollout in industrial contexts
• In-depth expertise in implementing security controls in brownfield environments, ensuring minimal operational disruption
• Strong skills in stakeholder management and cross-functional collaboration in complex industrial settings
• Excellent communication and facilitation skills, capable of explaining technical OT security topics to diverse audiences
• IT skills including MES software, Siemens machine control (S-series), and networking knowledge
• English at native speaker level; fluent German is advantageous but not mandatory
• Willingness to travel occasionally within specified regions for onsite work
• Proven experience in manufacturing environments is mandatory
• Experience within the chemical industry is highly preferred
• Deliver the majority of work remotely with occasional travel to sites in Krefeld, Düsseldorf, Geleen, and Genk for key workshops and assessments

Ihre Vorteile:

• Interesting tasks in a multinational environment
• A highly motivated team and an open way of communication