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# Sr Information Systems Security Engineer (ISSE) SCA, Advisor TS/SCI w/poly

- **Company:** Peraton Inc
- **Location:** Washington, DC, United States
- **Experience:** Expert
- **Salary:** $146,000 - $234,000
- **Contract:** Permanent contract
- **Skills:** Cloud Computing, Software Documentation, Cyber Security, Information Systems, Monitoring of Systems, Information Systems Security Architecture Professional, Information Systems Security Engineering Professional, Systems Development Life Cycle, Software Engineering, Information Technology
- **Published:** October 26, 2026
- **Apply:** https://www.careerbuilder.com/job-details/sr-information-systems-security-engineer-isse-sca-advisor-ts-sci-w-poly-washington-dc--e9714d75-019b-4567-b039-f31cf9fc006e

## About the Role

Information Systems Security Engineering (ISSE), Sensitive Compartmented Information (SCI), Top Secret Clearance, Information Systems Security Engineering (ISSE), Security Analysis, Management Strategy, Risk Management, Information Technology & Information Systems, Regulatory Requirements, Software Development Lifecycle (SDLC), * Bachelor's degree and 8 years of experience in secure design, analysis, and test of information security systems and products.

 * Must meet DoD 8140.03 Advanced proficiency aligned to Security Control Assessor (Work Role 612).
 * Must have a CISSP or CEH and 1 of the following certifications:
 * CCNP Enterprise, CISM, CISSP-ISSAP, CISSP-ISSEP, GCIA, GDSA, GICSP OR
 * Advanced degree from the list below:
 * Doctorate - Computer Science
 * Doctorate - Cybersecurity
 * Doctorate - Data Science
 * Doctorate - Information Systems
 * Doctorate - Information Technology
 * Doctorate - Software Engineering
 * Master of Science - Strategic Information and Cyberspace Studies (NDU CIC)
 * Masters - Computer Science
 * Masters - Cybersecurity
 * Masters - Data Science
 * Masters - Information Systems
 * Masters - Information Technology
 * Masters - Software Engineering
 * Active TS/SCI security clearance is required with the ability to obtain a polygraph.

Preferred:

 * Cloud certification

## Description

Peraton is seeking an Information Systems Security Engineer - Security Control Assessors (SCA) to support its Federal Strategic Cyber programs., * Assess security controls for accuracy and evidence

 * Review system documentation and accept / reject documents
 * Emphasis on coordination with System Owner, ISSE, and 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.