OT Security Mapping Specialist
SegmentationSupported the security and visibility of Operational Technology (OT) environments, including industrial control systems (ICS) such as PLCs, HMIs, DCS, robots, sensors, and SCADA systems. Conducted OT network mapping and asset discovery using passive monitoring techniques to identify industrial devices, communication paths, and dependencies without disrupting operations. Applied OT security standards and frameworks to evaluate security posture and recommend improvements for safer, more resilient operations. • Performed OT network mapping, asset discovery, and industrial protocol analysis (e.g., Modbus TCP, PROFINET, Ethernet/IP, DNP3). • Assessed IT/OT network segmentation risks related to flat networks, legacy systems, and insecure protocols. • Collaborated with OT engineers and IT teams to integrate OT security while meeting safety and real-time requirements. • Reviewed and improved firewall rules and LANs using IEC 62443 zoning concepts and industrial DMZ approaches.