ISSE

peraton· Cyber Security
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📍 Herndon, VA, USFULL TIME💰 USD 135K–216K

About this role

Responsibilities

Peraton’s Space Sector is seeking a seasoned Information Systems Security Engineer (ISSE) to join our diverse Information Assurance team supporting the Intelligence Community at our Herndon, VA office. The candidate will be expected to:

  • Design and implement safety measures and controls. Monitor network activity to identify vulnerable points. Address privacy breaches and malware threats.
  • Support the Assessment and Authorization (A&A) processes and Information Assurance documentation for multiple analytic and mission systems across all CLINs
  • Generate and maintain the complete security Body of Evidence (BoE) while leading the A&A activities according to the Risk Management Framework (RMF) processes (ICD 503, CNSSI-1253, NIST 800-37, NIST 800-53, etc.) for all multiple information systems
  • Author, complete and maintain the System Security Plan (SSP) within XACTA
  • Develop the Security Controls Traceability Matrices (SCTM), and the Security Test Plan (STP) procedures within Xacta.
  • Analyze existing security systems and make recommendations for changes or improvements
  • Prepare reports and action plans if a security breach does occur
  • Monitor the network and provide early warning of abnormalities or problems
  • Communicate the system status and keep users informed of downtime or changes to the system
  • Experience working with software developers and architects to understand security requirements
  • Experience guiding the application developers on security policy, identifying security requirements, providing technical guidance for the satisfaction of requirements
  • Experience creating and managing the plan of action and milestones (POA&Ms), and working with project managers and engineers to develop schedules and engineering actions that mitigate open findings
  • Experience supporting the Continuous Monitoring of operational systems; experience monitoring and auditing operational systems for proper use
  • Log Review/Analysis using SIEM tools (Splunk, etc.)
  • Vulnerability Analysis and Review (ACAS, Prisma, SonarQube, JFrog X-Ray, GitLab Code Quality)
  • DISA STIGs and STIG Viewer experience

Qualifications

Required Qualifications:

  • Bachelor's degree with 8+ years of relevant experience, Master's degree with 6+ years of relevant experience; or 4+ additional years of relevant experience in lieu of a degree
  • 6+ years of experience with years supporting Assessment and Authorization (A&A) and information assurance processes and documentation using RMF
  • Active TS/SCI clearance with Polygraph
  • Hands-on experience with validating control implementations and test procedures
  • Experience with RMF and Xacta
  • Experience with DISA Security Technical Implementation Guide (STIG)
  • Knowledge of current security risks and protocols
  • Active DoD IAT Level I certification
  • Ability to work 100% onsite in a secure environment

Desired Qualifications:

  • Experience working with AWS/Google cloud-hosted information systems or applications
  • Experience working with Containerized Systems or Applications
  • Experience working with Redhat or CentOS Linux operating systems
  • Experience working in a DevSecOps environment and tool chain

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

$135,000 - $216,000. 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.

Frequently Asked Questions

What is the salary for the ISSE role at peraton?
The listed salary for this ISSE position at peraton is USD 135K–216K. This is an FULL TIME role.
Where is the ISSE position at peraton located?
This ISSE role at peraton is based in Herndon, VA, US. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the ISSE role at peraton full-time or part-time?
This is listed as a FULL TIME position. It is posted as a ISSE role in the Cyber Security department at peraton.
Which team or department does the ISSE at peraton belong to?
This ISSE position is part of the Cyber Security department at peraton. See the full job description for more information about the team structure and responsibilities.
How do I apply for the ISSE position at peraton?
Click the "Apply Now" button on this page. You will be redirected to peraton's official application portal hosted on icims where you can submit your application directly.
When was the ISSE job at peraton posted?
This ISSE position at peraton was posted on Aug 13, 2026. Apply as soon as possible — early applications are often reviewed first.
ISSE
peraton · 💰 USD 135K–216K
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