Industrial IT/OT Network Security Architect

Pyramid Global Technologies; Hong Kong; On-site; HKD 1,100,000 - 1,500,000; Full time

Job summary

Pyramid Global Technologies is seeking an IT-OT Infra Network Security Architect to lead secure integration of IT and OT networks across PLC/SCADA/DCS environments, servers, and manufacturing assets.

You will design network security controls, zoning, and segmentation, align with IEC 62443/NIST 800-82 standards, and collaborate with engineers to strengthen OT architecture in industrial settings.

Qualifications

• 8+ years of IT experience with ICS security.
• 6+ years securing PLC/SCADA/DCS/RT historians.
• Experience architecting IT/OT environments across servers, networks, and manufacturing equipment.
• Knowledge of WAN, LAN, TCP/IP, UDP, VPN, and firewalls.
• Understanding of network zoning, segmentation, and isolation designs.
• Foundation in IT security threat modeling and pen-testing.
• Familiar with IEC 62443 and NIST 800-82 standards.

Skills

ICS security

IT/OT architecture

Network security

Network segmentation

Threat modeling

Pen testing

IEC 62443

NIST 800-82

Industry protocols

Cisco/Firewall

Job description

Pyramid Global Technologies is seeking an IT-OT Infra Network Security Architect to lead secure integration of IT and OT networks across PLC/SCADA/DCS environments, servers, and manufacturing assets.

You will design network security controls, zoning, and segmentation, align with IEC 62443/NIST 800-82 standards, and collaborate with engineers to strengthen OT architecture in industrial settings.