SYSTEM HIGH CORPORATION

Open

Security Control Assessor

Location
CHANTILLY, VA 2 - Chantilly, VA 20151
Employment type
Contract
Last seen
Aug 7, 2026

About the role

Position Overview A Cybersecurity Subject Matter Expert provides expert-level cybersecurity analysis, engineering, and assessment services for complex, multi-domain systems. This role acts as a senior technical advisor and Security Control Assessor (SCA), specializing in integrating security throughout the system lifecycle, translating technical risks into mission-impact statements, and guiding the implementation of advanced security architectures. Principal Duties and Responsibilities: Provides strategic cybersecurity guidance and participates in technical reviews (e.g., SRR, PDR, CDR) to ensure security is integrated from the initial design phase and throughout the system development lifecycle. Executes the Risk Management Framework (RMF) process, providing risk determinations and recommendations to the Authorizing Official (AO). As a Security Control Assessor (SCA), executes the Risk Management Framework (RMF) process across Federal, DoD, and IC policies. Provides continuous risk determinations and actionable recommendations directly to the Authorizing Official (AO). Conducts deep technical validation of security controls by reviewing vulnerability scans (e.g., ACAS/Nessus), STIG checklists, and penetration test reports to correlate findings with operational mission risk. Evaluates the security performance, integrity, and residual risk of diverse and complex architectures, including Platform Information Technology (PIT), cloud environments, communication networks, and satellite control systems. Guides the adoption and implementation of DoD Zero Trust principles and provides specialized expertise in the design and evaluation of Cross Domain Solutions (CDS). Functions as a technical liaison between engineering teams, program leadership, and external government and industry partners.