External Title Information Assurance and Security Engineer

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  to learn how we’re keeping people around the world safe and secure.

Peraton is seeking a seasoned Information Assurance and Security Engineer to serve as an Information System Security Officer (ISSO) for a cloud-hosted, Azure-based system. The ideal candidate brings deep security expertise, strong stakeholder communication skills, and hands-on experience supporting Agile software development teams delivering mission critical solutions within DHS or other Federal environments.

This position is remote.

Day to Day

Roles and Responsibilities:

• Provide technical and programmatic information assurance support to internal and external customers for network and information security systems.
• Design, develop, and implement security requirements across enterprise and program-level business processes.
• Prepare documentation and security artifacts based on customer input and industry standard guidelines (e.g., NIST RMF, DHS 4300A). Lead certification and accreditation activities for the program.
• Develop and maintain security test and evaluation plans and contingency plans.
• Conduct risk and vulnerability assessments and prepare formal reports and recommendations.
• Analyze existing policies and procedures for compliance with Federal laws, regulations, and standards; recommend remediation strategies to close security gaps.
• Recommend system enhancements to address identified deficiencies and improve the overall security posture.
• Design, test, and integrate computer and network security tools; secure system configurations and ensure compliant deployments.
• Perform system scans, interpret results, and support system administrators in resolving findings.
• Conduct internal security program audits and develop mitigation strategies to address identified risks.
• Provide technical guidance for secure architecture design supporting evolving mission needs.
• Support security incident investigations, root-cause analysis, and response.
• Perform vulnerability assessments and develop, document, and track corrective action plans.

Basic Qualifications:

• Bachelors degree and 8 years of experience or a Masters degree and 6 years of experience or an Associates degree and 10 year of experience or a High School diploma/equivalent and 12 years of experience.
• Must be a U.S. Citizen with the ability to obtain and maintain a DHS Public Trust clearance.
• Demonstrated experience performing Information System Security Officer (ISSO) duties in a Federal or regulated environment, including creating and maintaining RMF documentation, SSPs, POA&Ms, security test plans, and continuous monitoring artifacts.
• Proven experience supporting software development teams delivering Azure-based cloud solutions, including familiarity with Azure AD, App Services, Key Vault, App Gateway/WAF, and cloud-native security controls.
• Hands-on experience identifying, tracking, and managing security vulnerabilities, including interpreting scan results (e.g., Tenable/Nessus, Microsoft Defender) and working with…