OT Network Security Engineer / Consultant
Core
Design, implement, and deliver secure and resilient network infrastructure for complex OT and industrial environments, protecting connectivity between IT, OT, and safety-critical systems.
Role type
Senior IC OT Network Security Engineer / Consultant
Builds
Secure OT network architectures, industrial DMZs, network segmentation, and secure remote access solutions for energy, public, and finance sector clients.
Domain
Industrial OT / ICS, Energy, Utilities, Critical National Infrastructure
Required skills
Enterprise and industrial networking, TCP/IP, VLANs, routing, switching, next-generation firewalls, network segmentation, DMZ design, secure remote access, network hardening, vulnerability remediation, technical documentation, complex troubleshooting
Preferred skills
OT/ICS domain knowledge, industrial protocols, Purdue Model, IEC 62443, NCSC CAF, NIST frameworks, CCNA/CCNP certifications
Technologies
Palo Alto Networks, Fortinet, Cisco, Check Point, next-generation firewalls, industrial switches/routers
Responsibilities
Design and implement secure OT network architectures; Configure and manage firewalls, switches, routers, and secure remote access; Design network segmentation and industrial DMZs; Support network migrations, upgrades, and infrastructure refresh; Troubleshoot complex network and connectivity issues; Produce HLDs, LLDs, network diagrams, and test plans.
Seniority
Senior, hands-on IC
