Information Security Systems Engineer (ISSE)

Peraton; Chantilly (VA); On-site; USD 146,000 - 234,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

401(k)

Paid time off

Parental leave

Job summary

Peraton is seeking an Information System Security Engineer to design, implement, and continuously improve the security posture of information systems, networks, apps, and data. The role ensures compliance with security frameworks while proactively mitigating risks to protect assets.

You will collaborate with IT, engineering, development, and business teams to embed security into system design and operations, including AWS cloud environments, endpoints, and applications.

Qualifications

• Active TS/SCI with relevant polygraph.
• BA/BS and 8+ years of experience; extra four years may substitute for degree.
• 3+ years in information security or ISSE in customer environments.
• Knowledge of NIST SP 800-53, NIST CSF, ISO 27001, CIS Controls.
• Experience with security technologies and cloud environments.

Responsibilities

• Evaluate and improve security controls, architectures, and solutions across systems, networks, and AWS.
• Conduct risk and vulnerability assessments; perform architecture reviews.
• Document cybersecurity standards, procedures, and SSPs.
• Embed security into system design via DevSecOps practices.
• Evaluate threats and recommend program improvements; provide guidance to stakeholders.
• Support monitoring, metrics, and security posture initiatives.

Skills

DevSecOps

Risk assessments

Threat monitoring

Security guidance

Education

BA/BS in CS/IS or related field

8+ years of experience

Tools

Firewalls

SIEM

Vulnerability tools

IAM

Encryption

Job description

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.

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; 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.

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 athttps://www.careers.peraton.com/benefits.

EEO

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