Security Control Assessor (SCA) III

SYSTEM HIGH CORPORATION•Arlington, VA

5h•$190,000 - $210,000•Onsite

About The Position

At System High Corporation—a Top Washington-Area Workplace (The Washington Post, 2023–2025), a Top Workplaces Culture Excellence honoree (April 2025), and a three-time VETS Indexes 3-Star Employer—we protect and advance the nation’s most critical missions. As part of our team, you’ll tackle complex security challenges across SAP, SCI, and Collateral programs. If you’re driven by national security, innovation, and integrity, we want to hear from you. The SCA is responsible for conducting a comprehensive assessment of the management, operational, and technical security controls employed within or inherited by an IS to determine the overall effectiveness of the controls (i.e., the extent to which the controls are implemented correctly, operating as intended, and producing the desired outcome with respect to meeting the security requirements for the system). SCAs also provide an assessment of the severity of weaknesses or deficiencies discovered in the IS and its environment of operation and recommend corrective actions to address identified vulnerabilities. Responsibilities will cover Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities within the customer’s area of responsibility.

Requirements

9 - 12 years related experience
Minimum of nine (9) years’ experience in SAP, SCI or Collateral Information Systems (IS) Security and the implementation of regulations identified in the description of duties.
Prior performance in the role of ISSO and ISSM or SCA
Bachelor’s degree in a related discipline or equivalent experience (4 years)
Must meet position and certification requirements outlined in DoD Directive 8570.01-M for Information Assurance Technician Level III or Information Assurance Manager Level III or Information Assurance Architect and Engineer Level I within 6 months of the date of hire
Current Top-Secret Clearance with SCI Eligibility
Eligibility for access to Special Access Program Information
Willingness to submit to a Counterintelligence polygraph
Must have expert knowledge of DoD, National and applicable service and agency security policy, manuals and standards Must have the ability to work in a dynamic environment and effectively interact with numerous DOD, military/civilian personnel and industry partners
Mastery of Microsoft Office (Word, PowerPoint, and Excel)
Must be able to regularly lift 50 lbs.
This position requires a TS/SCI Clearance and a minimum of two years of Special Access Program Experience

Responsibilities

Perform oversight of the development, implementation and evaluation of IS security program policy; special emphasis placed upon integration of existing SAP network infrastructure
Perform assessment of ISs, based upon the Risk Management Framework (RMF) methodology in accordance with the Joint Special Access Program (SAP) Implementation Guide (JSIG)
Advise the Information System Owner (ISO), Information Data Owner (IDO), Program Security Officer (PSO), and the Delegated and/or Authorizing Official (DAO/AO) on any assessment and authorization issues
Evaluate Authorization packages and make recommendation to the AO and/or DAO for authorization
Evaluate IS threats and vulnerabilities to determine whether additional safeguards are required
Advise the Government concerning the impact levels for Confidentiality, Integrity, and Availability for the information on a system
Ensure security assessments are completed and results documented and prepare the Security Assessment Report (SAR) for the Authorization boundary
Initiate a Plan of Action and Milestones (POA&M) with identified weaknesses for each Authorization Boundaries assessed, based on findings and recommendations from the SAR
Evaluate security assessment documentation and provide written recommendations for security authorization to the Government
Discuss recommendation for authorization and submit the security authorization package to the AO/DAO
Assess proposed changes to Authorization boundaries operating environment and mission needs to determine the continuation to operate.
Review and concur with all sanitization and clearing procedures in accordance with Government guidance and/or policy
Assist the Government compliance inspections
Assist the Government with security incidents that relate to cybersecurity and ensure that the proper and corrective measures have been taken
Ensure organization are addressing and conducting all phases of the system development life cycle (SDLC)
Evaluate Hardware and Software to determine security impact that it might have on Authorization boundaries
Evaluate the effectiveness and implementation of Continuous Monitoring Plans
Evaluate the differences and have a working knowledge of Information Systems and Network Appliances operating at Protection Level 3 (PL3) and Protection Level 4 (PL4)
Differentiate the differences between the various types of Cross-Domain Solutions (CDS)
Assist with joint assessments of Cross-Domain Solutions with other DoD agencies