ISSE - Information Assurance and Security

Peraton is seeking an Information Systems Security Engineer (ISSE) to support a high-impact, large-scale enterprise IT program. In this role, the ISSE will be responsible for collaborating on system design, implementing cybersecurity best practices, and engineering Risk Management Framework (RMF) Body of Evidence (BoE) artifacts. This person will work closely with systems, network, and cybersecurity teams to ensure the confidentiality, integrity, and availability of enterprise information systems.

This is an exciting opportunity to grow your security engineering expertise on a mission-critical classified program with national security relevance.

Key Responsibilities:

• Support the design and development of secure IT systems by applying cybersecurity engineering principles and RMF guidance.

• Provide detailed system security descriptions, including operating environment, information types, and required controls.

• Review the adequacy and effectiveness of security controls; assist in tailoring controls to fit specific system environments.

• Help determine assurance measures to meet DoD and organizational security requirements.

• Collaborate across engineering disciplines to design and implement secure system architectures, including Zero Trust Architecture principles.

• Conduct security A&A (Assessment & Authorization) activities, coordinating with DAOs and internal security teams.

• Develop and maintain RMF documentation and artifacts throughout the system lifecycle.

• Perform tasks aligned with security monitoring, endpoint protection, compliance scanning, and credential management using tools such as:

  • Splunk (SIEM)

  • HBSS (endpoint security)

  • CyberArk (credential management)

  • ACAS / Nessus (compliance scanning)

  • HashiCorp tools

  • Fortify (code scanning)

• Follow Scrum/agile methodologies and contribute to iterative security engineering cycles.

Required Qualifications:

• Education & Experience:

  • Minimum 5 years with BS/BA, or 3 years with MS/MA

  • Additional 4+ years of experience can be considered in lieu of a degree.

• Security Clearance:

  • TS/SCI clearance adjudication or ability to obtain SCI

• Certifications:

  • Must possess a DoD 8570.1-M/8140 IAT Level III certification (e.g., CASP, CISSP, CCSP)

• Technical Experience:

  • 3–5 years of hands-on experience in security engineering of enterprise-level IT systems

  • Experience with RMF processes and documentation

  • Exposure to key cybersecurity tools: Splunk, ACAS, HBSS, CyberArk, Fortify, and HashiCorp

Desired Qualifications:

• ITIL v4 Foundation Certification

• Experience working with ServiceNow for workflow and security operations

• Familiarity with DevSecOps pipelines and automation is a plus

Peraton offers enhanced benefits to employees working on this critical National Security program, which includes heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan.

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.