Risk Register)

Peraton•Herndon, VA

67d•$66,000 - $106,000•Onsite

About The Position

We are seeking a highly skilled and innovative OT Security Analyst (Inventory/Diagrams/Risk Register) to join our team in the greater DMV area, supporting the Army National Guard. This role involves maintaining critical security documentation and processes for Operational Technology (OT) environments. The analyst will be responsible for creating and updating asset inventories, network diagrams, performing risk analysis, and collaborating with various teams to ensure the security and compliance of OT systems.

Requirements

Active TS/SCI clearance.
Bachelor’s degree in Computer Science, Cybersecurity, Data Science, Information Systems, Information Technology, Software Engineering, or a related field; OR Relevant DoD/military training (example: Research & Development Specialist (Intermediate) Playlist); OR Relevant professional certification or equivalent experience (example: CompTIA Security+).
Experience in OT/ICS inventorying, network diagramming, risk management, or systems documentation.
Proficiency creating and maintaining network/OT diagrams (Visio/NetBox/Diagrams tools) and authoritative asset registries.
Familiarity with OT/ICS protocols, control system components, and typical OT network segmentation/zoning.
Experience mapping vulnerabilities to OT assets, maintaining risk registers/POA&Ms, and supporting remediation verification.
Strong attention to detail, documentation skills, and ability to coordinate with engineering and operations teams.

Nice To Haves

Prior DoD/ARNG or industrial control systems (ICS/OT) environment experience.
Familiarity with RMF/ATO evidence requirements, CCRI concepts, and tools for inventory/risk tracking.
Experience with automated asset discovery, CMDB/CM tools, or OT asset management platforms.

Responsibilities

Maintain and update authoritative OT asset inventories, component registers, and configuration baselines.
Produce and sustain network/interconnection diagrams (logical and physical) reflecting OT topology, zones, conduits, and data flows.
Perform exposure and dependency analysis to map asset criticality, connectivity risks, and potential impact to operations.
Update and maintain risk registers (RIO): record vulnerabilities, residual risk ratings, mitigation owners, POA&Ms, and status tracking.
Validate system configurations with engineering and operations teams; identify undocumented connections or shadow assets and drive corrective actions.
Support vulnerability scanning/assessment cycles by correlating findings to OT assets and verifying remediation evidence.
Provide documentation and artifacts to support RMF/ATO evidence, CCRI readiness, and auditability for OT environments.
Collaborate with SOC/CIRT, network, and system owners to inform detection, monitoring, and protective measures for OT assets.
Contribute to continuous improvement of inventory, diagramming, and risk‑tracking processes and tools.