Security Architect/ISSO Liaison

Peraton is seeking a highly qualified Security Architect / ISSO Liaison to support cybersecurity architecture, compliance, and continuous monitoring activities for mission-critical systems supporting CBP analytics and intelligence operations.

This role serves as a key member of the cybersecurity and compliance team, ensuring system security architecture aligns with federal regulatory requirements, DHS policy, and CBP operational standards. The selected candidate will act as the primary technical interface between engineering teams and the Information System Security Officer (ISSO), providing guidance across system design, authorization, and ongoing monitoring activities.

The ideal candidate combines strong architectural expertise, deep knowledge of federal cybersecurity frameworks, and the ability to translate complex security requirements into practical implementation guidance within a secure federal environment.

Support will be provided across multiple mission locations:

Ashburn, VA
• Sterling, VA
• Washington, D.C

Key Responsibilities

• Design, review, and maintain secure system architectures aligned with federal standards (NIST RMF, FIPS, CNSSI) and DHS 4300A requirements.
• Serve as the primary technical liaison between engineering teams and the ISSO to translate security controls into actionable implementation guidance.
• Support Assessment & Authorization (A&A) activities, including control validation, artifact development, and audit preparation.
• Interpret and apply DHS 4300A policies to system design, documentation, and operational processes.
• Manage and track POA&Ms, vulnerabilities, and remediation efforts in coordination with engineering and operations teams.
• Support continuous monitoring activities, including vulnerability analysis, control assessments, and compliance reviews.
• Coordinate with SOC, DevOps, and infrastructure teams to address findings, security alerts, and risk mitigation actions.

• 5 years with BS/BA; 3 years with MS/MA. 9 years with a HS diploma/equivalent can be considered in lieu of a degree.
• 2+ years of experience with in secruity field.
• Experience supporting federal cybersecurity frameworks, including NIST RMF and DHS 4300A.
• Background in security architecture, system engineering, or cybersecurity operations.
• Experience with POA&M processes, vulnerability management, and continuous monitoring tools.
• Familiarity with Assessment & Authorization (A&A) processes.
• Strong written and verbal communication skills, with the ability to engage technical and non-technical stakeholders.
• Experience supporting regulated federal IT environments.

Clearance Requirements

• Current Top Secret Clearance
• Ability to obtain and maintain required CBP suitability.
• U.S. Citizenship required.

Preferred Qualifications

• Professional certifications such as CISSP, CISM, CCSP, Security+, or equivalent.
• Experience supporting ISSO or ISSM functions within federal or DoD environments.
• Working knowledge of cloud security architectures (AWS, Azure, or GCP).
• Experience with DevSecOps integration and CI/CD security controls.
• Familiarity with FedRAMP, FISMA, and related federal compliance requirements.

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.