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Sr Information Systems Security Officer (ISSO), Advisor - TS/SCI w/poly

Peraton
Peraton Salary
Winchester, VA Full Time
POSTED ON 9/12/2026
AVAILABLE BEFORE 10/11/2026
About Peraton

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 solve the most daunting challenges that our customers face. Visit peraton.com to learn how we're keeping people around the world safe and secure.

About The Role

Peraton is seeking an Sr Information Systems Security Officer to support our Federal Strategic Cyber programs.

Location: Winchester, VA

In this role, you will:

  • Apply best practices for cybersecurity program standards, processes, procedures, and industry-standard security frameworks.
  • Implement and assess security controls in accordance with NIST SP 800-53, NIST SP 800-53A requirements and guidance.
  • Develop security policies and procedures, CSS, SSP, SSPP, and assess ATO package artifacts.
  • Apply expert knowledge of Risk Management Framework (RMF) v5 processes and workflows.
  • Use eMASS to execute RMF v5 activities, document and update system status, identify and manage operational and technical security controls, assess implementation and risk, manage non-compliant and non-validated controls, manage POA&Ms from entry through closeout, produce reports, and track POA&M due dates.
  • Complete checklists to ensure Security Authorization Process documentation is complete and complies with applicable guidance.
  • Collaborate with IT counterparts, communicate complex technical information to non-technical audiences, and coordinate STIG remediation with system administrators and developers.
  • Conduct risk assessments, monitor security incidents, and respond appropriately to security threats.
  • Apply knowledge of network technologies and protocols, TCP/IP, operating systems, security protocols, system architecture and data flows, security categorization, requirements, configuration management processes, firewalls and configurations, intrusion detection and prevention systems, encryption techniques, Windows, Unix, Linux, databases, web servers, and other applications.

Qualifications

Required Qualifications:

  • Bachelor's degree in Computer Science, Business Management, or IT related discipline.
  • Minimum of 9 years of work experience in a Computer Science or Cybersecurity related field with at least 7 of those years serving as an Information Systems Security Officer (ISSO) or Information System Security Engineer at a cleared facility.
  • Must have at least 1 of the following certifications:
    • CISSP, GISP, or CASP /SecurityX
  • Must meet DoD 8140.03 Advanced proficiency aligned to Information Systems Security Manager (Work Role 722). Must have at least 1 of the following certifications or advanced degrees listed below:
    • CISM - Certified Information Security Manager
    • CISSP - Certified Information Systems Security Professional
    • CISSP-ISSMP - Certified Information Systems Security Professional - Information Systems Security Management Professional
    • FITSP-M - Federal IT Security Professional-Manager-NG
    • GCIA - GIAC Certified Intrusion Analyst
    • GCIH - GIAC Certified Incident Handler
    • GICSP - Global Industrial Cyber Security Professional
    • GSLC - GIAC Security Leadership Certification
    • 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
  • Familiarity with the use and operation of security tools including Tenable Nessus and/or Security Center, Splunk, IBM Guardium, HP Web Inspect, Network Mapper (NMAP), and/or similar applications.
  • Active TS/SCI security clearance with the ability to obtain a polygraph.

Details

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.

Benefits Statement: Peraton offers eligible employees a variety of benefits including medical, dental, vision, life, health savings account, short/long term disability, EAP, parental leave, 401(k), paid time off (PTO) for vacation, and company paid holidays. A full listing of available benefits can be viewed at https://www.careers.peraton.com/benefits.

Application Statements: The application period for the job is estimated to be 30 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates. By applying to this job, you are expressing interest in the role and the Company. During the review of your application, you may be required to participate in an on-camera interview, as well as participate in a process to verify your identity. Use of artificial intelligence (AI) tools of any kind during Peraton interviews is strictly prohibited unless the candidate has obtained prior written authorization. All interview responses must be the candidate's own.

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

Salary : $146,000 - $234,000

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