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

Peraton; Washington (District of Columbia); On-site; USD 146,000 - 234,000; Full time

Job summary

Peraton is seeking an Information Systems Security Engineer – Security Control Assessors (SCA) to support Federal Strategic Cyber programs in Washington, DC. You will assess security controls, review documentation, and coordinate with system owners, ISSEs, and ISSOs to maintain high-quality deliverables throughout the RMF lifecycle.

Responsibilities include monitoring across the ISSM portfolio, guiding categorization, and ensuring proper risk management documentation for system authorization.

Qualifications

• Bachelor’s degree and 8 years of experience in secure design, analysis, and test of information security systems and products.
• DoD 8140.03 Advanced proficiency aligned to Security Control Assessor (Work Role 612).
• Must have a CISSP or CEH and 1 of the listed certifications (or an advanced degree).
• Active TS/SCI security clearance with the ability to obtain a polygraph.

Responsibilities

• Assess security controls for accuracy and evidence.
• Review system documentation and accept/reject documents.
• Coordinate with System Owner, ISSE, and ISSO to fix items.
• Monitor systems across ISSM portfolio for quality in RMF lifecycle.
• Oversee and coordinate Prepare step activities with defined roles and risk strategies.
• Guide system categorization based on impact and regulatory requirements.
• Advise on selection, tailoring, and documentation of security controls.
• Oversee lifecycle implementation of technical, operational, and management controls.
• Plan, execute, and document comprehensive security control assessments.
• Prepare risk management documentation for system authorization.
• Direct ongoing monitoring and continuous assessment with leadership metrics.
• Provide cybersecurity guidance and training to team and stakeholders.
• Report status, risks, and improvement opportunities to leadership.
• Maintain knowledge of RMF, NIST guidance, and best practices.

Skills

Active TS/SCI clearance with poly

Education

Bachelor's degree in information security or related field

DoD 8140.03 Advanced proficiency for Security Control Assessor (Work Role 612)

CISSP

CEH

CCNP Enterprise

CISM

CISSP-ISSAP

CISSP-ISSEP

GCIA

GDSA

GICSP

Cloud certification (preferred)

Tools

N/A

Job description

Responsibilities

Peraton is seeking an Information Systems Security Engineer – Security Control Assessors (SCA) to support its Federal Strategic Cyber programs.

Location: Washington, DC

In this role, you will:

• 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.

Qualifications

Required Qualifications:

• 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

Peraton Overview

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

Target Salary Range

$146,000 - $234,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

EEO

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.