Senior Information Systems Security Officer

Job Description The Applied Physics Laboratory (APL) has an outstanding opportunity for a Senior Information Systems Security Officer (Sr. ISSO) to join the Security Department.

About this Opportunity:

Reporting to the Information Systems Security Manager, the Senior Information Systems Security Officer will efficiently manage APL-UW classified information systems security resources while maintaining complete security compliance and effective information systems operations. The primary job duties will be to lead journeyman-level IT team members in support of classified information systems security  addition, this position is responsible for developing, implementing, and managing effective and efficient information systems security practices that comply with continually evolving national security laws, federal policies, regulations, and guidelines.

The incumbent will support classified information systems operating within multiple accredited environments while ensuring the confidentiality, integrity, and availability of sensitive government information.

Additionally, the incumbent will serve as a formal member of the APL Insider Threat Program (ITP) management hub, responsible for identifying and collecting potential threat factors that could adversely affect classified information systems or national security information.

The incumbent will continuously integrate information gathered from a variety of technical, operational, and security sources into APL-UW information systems security practices while coordinating directly with the ISSM. The incumbent will also maintain a functional working relationship with the CSSO to ensure information systems security remains aligned with personnel security, physical security, industrial security, and compartmented security requirements. Coordination with the University's Facility Security Officer (FSO) will be maintained, as appropriate, to ensure consistency across the University's classified security program.

Key Responsibilities:

Technical Security Operations (45% FTE):
· Support the ISSM to ensure APL-UW's JWICS, SIPRNet, and classified enclaves maintain strict compliance with IC, DoD, DISA, DCSA, University, and customer requirements.
· Act as the Network SME guiding the modernization and hands-on administration of classified infrastructure, including managing domain controllers, SANs, and deploying Active Directory GPOs.
· Administer security tools (HBSS, ESS, ACAS, STIGs) to assess vulnerabilities, validate controls, and interface directly with the Cyber Security Service Provider (CSSP).
· Serve as the primary systems administrator for testing, packaging, and deploying critical software updates and security patches across all enterprise operating systems and appliances.
· Enforce user compliance, troubleshoot network operations, and maintain Continuous Monitoring and Risk Scoring (CMRS) records.

Classified Security Systems (25% FTE):
· Establish, operate, and maintain accredited classified processing environments to ensure strict compliance with applicable IC, DoD, DCSA, University, and customer security requirements.
· Ensure lifecycle protection of JWICS, SIPRNet, and other classified systems by enforcing security procedures, conducting documented weekly checks, and performing required periodic inspections.
· Perform air-gapped system administration for Windows and RHEL, manually deploying patches, STIG configurations, audit logging, and disaster recovery backups.
· Partner with the ISSM and CSSO to maintain System Security Plans (SSPs) and strictly integrate information systems with personnel, physical, and industrial security requirements.

System Certification and Accreditation (10% FTE):
· Implement network, application, and access controls,…