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

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

Benefits offered by this job

Cloud certification

Job summary

Peraton is seeking an Information Systems Security Engineer to support Federal Strategic Cyber programs in Washington, DC. You will lead a team through RMF lifecycle activities, guiding categorization, control selection, and continuous monitoring to sustain compliance.

The role requires DoD 8140.03 proficiency, CISSP or CEH with multiple endorsements, and an active TS/SCI clearance or ability to obtain a polygraph. Cloud certification is preferred.

Qualifications

• Bachelor’s degree and 8 years of experience in secure design, analysis, and test of information security systems and products.
• 8 years of experience applying methods, standards and approaches for ensuring baseline security safeguards are documented.
• 8 years of experience creating and updating security test plans for detecting and mitigating risk.
• Must meet DoD 8140.03 Advanced proficiency aligned to Security Architect or Security Control Assessor.
• CISSP or CEH and 1 of the listed certifications or advanced degree as specified.

Responsibilities

• Lead, mentor, and supervise a team of contractor security professionals for RMF lifecycle implementation.
• Oversee Prepare step activities with defined roles, responsibilities, and risk strategies.
• Guide system categorization to classify information systems by mission impact and regulations.
• Advise on selection and documentation of security controls aligned with categorization and compliance.
• Oversee implementation of technical, operational, and management controls across lifecycles.
• Ensure security control assessments are planned, executed, and documented for effectiveness.
• Prepare risk management documentation for system authorization and executive decisions.
• Direct ongoing monitoring and continuous assessment with metrics to adjust strategies.
• Serve as principal technical advisor on cybersecurity including risk analysis and audit support.
• Foster security awareness and provide guidance and training to team and stakeholders.
• Track, report, and communicate status, risks, and improvements to leadership.

Skills

RMF lifecycle leadership

Lead and mentor team

Risk management guidance

Security controls documentation

Security analysis & incident response

Technical advisory

Education

Bachelor's degree

Advanced degree or MS/PhD equivalent

Tools

CISSP

CEH

Security certifications (CCNP Enterprise, CISM, CISSP-ISSAP, CISSP-ISSEP, GCIA, GDSA, GICSP)

Job description

Responsibilities

Peraton is seeking an Information Systems Security Engineer - to support its Federal Strategic Cyber programs.

Location: Washington, DC

In this role, you will:

• Lead, mentor, and supervise a team of contractor security professionals responsible for the end-to-end implementation of the RMF lifecycle for IT systems.
• 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.
• 8 years of experience applying methods, standards and approaches for ensuring baseline security safeguards are appropriately implemented and documented
• 8 years of experience creating and updating security test plans for detecting and mitigating risk to information systems
• Must meet DoD 8140.03 Advanced proficiency aligned to Security Architect (Work Role 652) or 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.