Security Control Assessor

SYSTEM HIGH CORPORATION • Chantilly, VA

3d • Onsite

About The Position

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.

Requirements

• Requires a minimum of twelve (12) years of demonstrated experience in IT, cybersecurity engineering, and/or Assessment & Authorization (A&A).
• Must hold a current certification compliant with DoD 8140.01 for IAT Level III or IAM Level III (e.g., CISSP, CISM, GSLC, CASP+ CE).
• Must have proven hands-on experience with systems integration, enterprise networks, cloud computing systems, or Platform IT architectures.
• Must possess an active Top-Secret clearance with eligibility for SCI and SAP access.

Nice To Haves

• Ample experience with Special Access Program (SAP) and Sensitive Compartmentalized Information (SCI) Systems preferred.

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.

Benefits

• System High is a Military friendly employer.
• System High values the power and strength of diverse backgrounds on the culture and performance of our company.
• We strive to maintain an inclusive culture to encourage each employee to bring their whole self to the mission.
• System High Corporation is committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender, gender identity or expression, veteran status, or any other characteristic protected by law.
• We are proud to be an equal opportunity workplace.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed