OT/ICS Cybersecurity Architect

An OT/ICS Cybersecurity Architect is required by our client. The successful candidate will design, build, and govern secure systems for industrial control networks and critical infrastructure to protect physical operations without stopping production. Responsibilities • Create network architecture plans using the Purdue Model and Zero Trust principles. • Build secure zones and conduits to separate enterprise IT from factory floor OT. • Deploy visibility tools like Nozomi Networks or Claroty to watch for cyber threats. • Run vulnerability assessments and risk modeling on industrial hardware like PLCs and RTUs. • Work with engineering and IT teams to make new industrial projects safe by design. Essential experience must include • 5 to 10+ years working with industrial control systems (ICS), SCADA, and operational technology (OT). • Deep knowledge of industrial communication protocols like Modbus, DNP3, and OPC UA. • Expertise in safety and security standards like ISA/IEC 62443 and NIST SP 800-82 • Previous experience working for major oil and gas / energy, aviation, or telecoms industry highly advantageous Show more Show less

Essential experience must include 5 to 10+ years working with industrial control systems (ICS), SCADA, and operational technology (OT). Deep knowledge of industrial communication protocols like Modbus, DNP3, and OPC UA. Expertise in safety and security standards like ISA/IEC 62443 and NIST SP 800-82. Previous experience working for major oil and gas / energy, aviation, or telecoms industry highly advantageous.

Create network architecture plans using the Purdue Model and Zero Trust principles. Build secure zones and conduits to separate enterprise IT from factory floor OT. Deploy visibility tools like Nozomi Networks or Claroty to watch for cyber threats. Run vulnerability assessments and risk modeling on industrial hardware like PLCs and RTUs. Work with engineering and IT teams to make new industrial projects safe by design.