OT/ICS Cybersecurity & Forensics Engineer – Denver Onsite

3Core Systems, Inc; Denver, Northern (CO, KY); Hybrid; USD 120,000 - 170,000; Full time

Job summary

3Core Systems, Inc. seeks a Cyber ICS/OT Security & Forensic Engineer for a 12+ month on-site engagement in Denver, CO. The role focuses on protecting OT environments, securing industrial control systems, and forensic analysis.

Responsibilities include asset discovery, vulnerability management using Claroty, and applying IEC 62443-based segmentation and OT protocol knowledge (Modbus, OPC, Ethernet/IP) to safeguard operations.

Qualifications

• Experience protecting OT environments against cyber threats.
• Deep understanding of PLCs, HMIs, SCADA, DCS, and safety systems.
• Familiar with asset discovery and vulnerability management using OT tools like Claroty.
• Knowledge of network segmentation using IEC 62443 concepts.
• Experience with OT protocols such as Modbus, OPC, Ethernet/IP.

Responsibilities

• Protect OT environments and systems from cyber threats.
• Discover assets and support vulnerability management activities.
• Assist in implementing and validating network segmentation per IEC 62443.
• Work with OT engineering teams to harden PLCs, HMIs, SCADA, and DCS.
• Maintain familiarity with OT protocols like Modbus, OPC, Ethernet/IP.

Skills

OT security

Industrial protocols

Asset discovery

Network segmentation

IEC 62443

Claroty

Job description

3Core Systems, Inc. seeks a Cyber ICS/OT Security & Forensic Engineer for a 12+ month on-site engagement in Denver, CO. The role focuses on protecting OT environments, securing industrial control systems, and forensic analysis.

Responsibilities include asset discovery, vulnerability management using Claroty, and applying IEC 62443-based segmentation and OT protocol knowledge (Modbus, OPC, Ethernet/IP) to safeguard operations.