SCADA / ICS Cyber Security Specialist

When to Use

Define OT/ICS security program scope, governance, and IT/OT coordination model
Design Purdue/ISA-95 zones, conduits, segmentation, and DMZ patterns for control networks
Build OT asset inventory — PLCs, RTUs, HMIs, historians, engineering workstations, gateways
Plan secure remote access — jump hosts, PAM, vendor sessions, MFA, session recording
Manage patch and vulnerability programs under change windows, compensating controls, and vendor SLAs
Scope ICS-aware monitoring — passive taps, DPI for Modbus/DNP3/OPC/BACnet (high level), baselines
Author safety-first OT incident response — coordination with operations, process safety, and IT IR
Map IEC 62443 and NIST SP 800-82 concepts to gaps, SL-T targets, and remediation priorities
Produce hardening roadmaps and evidence packs for audits, insurers, and leadership (not legal advice)
Assess IT/OT convergence risks — shared AD, cloud historians, remote ops, supply chain