Information Systems Security Officer (ISSO)

Radiance Technologies, a 100% employee-owned company, is seeking an Information Systems Security Officer (ISSO) to support cybersecurity operations for an organization within the US Army Space and Missile Defense Command Technical Center. The ISSO will assist in safeguarding DoD Special Access Program (SAP) information systems, ensuring cybersecurity compliance, and implementing DoD Joint Special Access Program Implementation Guide (JSIG) policies and standards throughout system lifecycles.

This position requires deep knowledge of cybersecurity principles, DoD cybersecurity documentation, and proactive risk management framework (RMF) in support of secure system integration and sustainment.

Responsibilities

Primary duties will be producing, developing, and maintaining all security authorization documentation—to include the System Security Plan (SSP), Plan of Action and Milestones (POA&M), Security Assessment Plan, and other artifacts required for the Security Authorization Package. This individual will be responsible for preparing and submitting the complete package to the Authorizing Official (AO) through the Security Control Assessor (SCA).

Support Information Systems Security Managers (ISSMs) in executing cybersecurity responsibilities across assigned systems. Implement and enforce DoD cybersecurity policies and procedures for Information Systems (IS) and Platform IT (PIT) systems. Verify users possess the appropriate security clearances, access authorizations, and are trained in cybersecurity responsibilities before accessing DoD systems.

Coordinate with ISSMs to initiate corrective actions or protective measures in response to cybersecurity incidents or vulnerabilities. Ensure proper reporting channels exist and are followed for all cybersecurity threats and events. Maintain up-to-date cybersecurity-related documentation and ensure accessibility to authorized users.

Review and analyze reports from penetration tests, static code analysis, and vulnerability scans. Analyze network architecture, data flows, organizational charts, and personnel assignments for potential cybersecurity vulnerabilities. Participate in continuous improvement of system security postures and assist in securing custom-developed applications.

Perform other duties as assigned.

Required Skills

Strong understanding of DoD cybersecurity regulations, standards, and tools. Experience with RMF, vulnerability management, system hardening, and secure coding practices. Working knowledge of common operating systems, including Windows desktop, Windows Server, and Linux environments, sufficient to understand system configurations, security controls, vulnerabilities, and audit requirements.

Experience using Splunk or similar security information and event management (SIEM) tools to support security auditing, log analysis, continuous monitoring, and identification of potential security events. Excellent communication and coordination skills across functional teams. Ability to assess, document, and mitigate cybersecurity risks in complex environments.

U.S. Citizenship and active Top Secret/SCI clearance . Required Experience Experience supporting Special Access Program (SAP) information systems, including working knowledge of the Joint Special Access Program Implementation Guide (JSIG), Revision 4, and its application to system authorization and cybersecurity compliance.

At least 5 years of experience supporting the full cybersecurity life cycle for DoD systems. At least 5 years of progressively complex experience in developing, integrating, and implementing cybersecurity and program protection standards for networks, computing environments, and application development. Required Certification Candidate must possess a certification meeting DoD 8570 Information Assurance Technical Level II requirements (Security+ CE, SSCP, GSEC, or CCNA Security).

Desired Qualifications Bachelor’s degree in Information Technology, Cybersecurity, Computer Science, Information Systems, Data Science, or Software Engineering. Candidates possessing advanced certifications to meet Information Assurance Technical Level III requirements (CASP+ CE, CCNP Security, CISA, CISSP (or Associate), GCED, GCIH, CCSP) will be given preference.

Experience with ATO packages, RMF documentation, vulnerability assessments, and continuous monitoring. Familiarity with DoD cyber compliance tools such as ACAS, eMASS, and HBSS. Experience with securing custom application development environments and Dev. Sec. Ops practices. Radiance Technologies is an Equal Opportunity Employer.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.