Information Security Systems Engineer (ISSE)

peraton· Cyber Security
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📍 Chantilly, VA, USFULL TIME💰 USD 146K–234K

About this role

Responsibilities

Position Summary

The Information System Security Engineer is responsible for designing, implementing, maintaining, and continuously improving the security posture of the organization’s information systems, networks, applications, and data. This role ensures compliance with Customer security frameworks, regulations, and industry best practices while proactively identifying and mitigating risks to protect information assets.

 

Responsibilities

  • Evaluate, maintain, and improve security controls, architectures, and solutions across systems, networks, endpoints, AWS cloud environments, and applications.
  • Perform risk assessments and vulnerability assessments based on controls, security architecture reviews.
  • Document and maintain cybersecurity environment, standards, procedures, and system security plans.
  • Collaborate with IT, engineering, development, and business teams to embed security into system design, development, and operational processes (DevSecOps practices).
  • Evaluate emerging threats, technologies, and security solutions; recommend improvements to the security program.
  • Provide security guidance and awareness support to technical and nontechnical stakeholders.
  • Support continuous monitoring, metrics reporting, and security posture improvement initiatives.

Qualifications

Required

  • TS/SCI with relevant polygraph
  • BA/BS and 8+ years of experience; Masters and 6+ years of experience; an additional four years of experience may be considered in lieu of degree.
  • At least 3 years of hands-on experience in information systems security, cybersecurity engineering, or related roles in the customer environment as an ISSE.
  • Working knowledge of security frameworks and standards (NIST SP 80053, NIST Cybersecurity Framework, ISO 27001, CIS Controls, etc.).
  • Experience with security technologies such as firewalls, SIEM platforms, vulnerability management tools, endpoint protection, identity and access management (IAM), encryption, and network security controls.
  • Proficiency in assessing and securing operating systems (Windows, Linux), networks, cloud environments (AWS, Azure, or GCP), and applications.

Preferred Qualifications

  • Bachelor’s degree in Computer Science, Information Security, Cybersecurity, Information Systems, or a related field (or equivalent practical experience).
  • Relevant industry certifications such as CISSP, CISM, CompTIA Security+, CEH, GIAC certifications (GSEC, GCIA, GCIH, etc.), or cloud security certifications (CCSP, AWS Security Specialty, Azure Security Engineer, etc.).
  • Agile software development cycle including the ability to use Jira.
  • Hands-on experience with scripting or automation (Python, PowerShell, Bash) for security tooling and processes.
  • Prior experience supporting compliance audits or regulatory frameworks relevant to the organization.
  • Experience in incident response, forensic analysis, or security operations center (SOC) environments.
  • Knowledge of zero trust architecture principles and modern identity/security architectures.

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.

Frequently Asked Questions

What is the salary for the Information Security Systems Engineer (ISSE) role at peraton?
The listed salary for this Information Security Systems Engineer (ISSE) position at peraton is USD 146K–234K. This is an FULL TIME role.
Where is the Information Security Systems Engineer (ISSE) position at peraton located?
This Information Security Systems Engineer (ISSE) role at peraton is based in Chantilly, 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 Information Security Systems Engineer (ISSE) role at peraton full-time or part-time?
This is listed as a FULL TIME position. It is posted as a Information Security Systems Engineer (ISSE) role in the Cyber Security department at peraton.
Which team or department does the Information Security Systems Engineer (ISSE) at peraton belong to?
This Information Security Systems Engineer (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 Information Security Systems Engineer (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 Information Security Systems Engineer (ISSE) job at peraton posted?
This Information Security Systems Engineer (ISSE) position at peraton was posted on Oct 1, 2026. Apply as soon as possible — early applications are often reviewed first.
Information Security Systems Engineer (ISSE)
peraton · 💰 USD 146K–234K
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You'll be redirected to peraton's official application page on icims.