Senior Information Systems Security Engineer - Security Control Assessor (SCA)

Peraton is seeking an Information Systems Security Engineer (ISSE) – Security Control Assessors (SCA) to support an established federal enterprise cybersecurity program. The team will provide security engineering, control assessments, audit readiness, and governance, risk, and compliance (GRC) support across systems at multiple classification levels, including cloud environments and SaaS platforms.

Location: Quantico, VA

Responsibilities 

• Assess security controls for accuracy and evidence 
• Review system documentation and accept / reject documents 
• Emphasis on coordination with System Owner, ISSE, ISSO to fix items that need rework 
• Emphasis on continuously monitoring systems across ISSM portfolio to focus on quality throughout SAA lifecycle 
• Oversee and coordinate activities within the Prepare step, ensuring roles, responsibilities, and risk management strategies are clearly defined and maintained 
• Guide system categorization efforts to ensure all information systems are appropriately classified based on mission/business impact and regulatory requirements 
• Advise on the selection, tailoring, and documentation of security controls aligned with system categorizations, risk appetite, and compliance requirements 
• Oversee the implementation of technical, operational, and management controls throughout system and application lifecycles, with a particular focus on quality and completeness of all deliverables 
• Ensure comprehensive security control assessments are planned, executed, and documented to validate the effectiveness of implemented safeguards  
• Prepare risk management documentation for system authorization and executive decision-making 
• Direct ongoing monitoring and continuous assessment activities, collecting metrics to adjust security strategies and ensure sustained compliance 
• Serve as a principal technical advisor on cybersecurity, bringing subject-matter expertise to risk analysis, incident response, system remediation, and audit support efforts 
• Foster a culture of security awareness, providing technical guidance and training to both team members and stakeholders 
• Track, report, and communicate status, risks, and improvement opportunities related to security engineering activities to leadership and stakeholders 
• Maintain up-to-date knowledge of RMF, NIST guidance, and industry best practices in support of continuous process improvement 

#FederalCyberISaaS

Required qualifications: 

• Top Secret security clearance upon hire. The selected candidate must be eligible to obtain/maintain a TS/SCI clearance and successfully complete a polygraph examination if required by the customer.  Must be a U.S. Citizen.

• Minimum 8 years each of: (1) secure design/analysis/test; (2) methods/standards for safeguard implementation; (3) creating/updating security test plans 
• Must meet applicable DoW 8140.03 qualification requirements for Work Role 612 (Security Control Assessor), Advanced Proficiency level, through at least one of the following:
  
  • Certification:
    • CCISO - Certified Chief Information Security Officer
    • CISA - Certified Information Systems Auditor
    • CISM - Certified Information Security Manager
    • CISSP - Certified Information Systems Security Professional
    • CISSP-ISSEP - Certified Information Systems Security Professional - Information Systems Security Engineering Professional
    • CySA+ - CompTIA Cybersecurity Analyst plus
    • GSLC - GIAC Security Leadership Certification
    • GSNA - GIAC Systems and Network Auditor;  OR
  • Education: Master's degree or higher in Computer Science, Cybersecurity, Information Technology, Information Systems, Software Engineering, or a closely related field OR
  • Training: Qualifying DoD-approved training