Senior ISSO; TS​/SCI and scope polygraph

Senior ISSO (With TS/SCI and active full scope polygraph)

Annapolis, United States | Posted on 06/25/2026

• Provide support for implementing and enforcing information systems security policies, standards, and methodologies.
• Assist in the evaluation of security solutions to ensure they meet security requirements for processing multiple types of information.
• Assist with the Configuration Management for information system security software, hardware, and firmware.
• Analyze threats and develop and implement best practice methodologies for incident detection, reporting, and vulnerability remediation.
• Maintain records on workstations, servers, routers, firewalls, intelligent hubs, network switches, etc. to include system upgrades.
• Evaluate security solutions to ensure they meet security requirements for processing information.
• Maintain operational security posture for information systems.
• Provide support to the Information System Security Manager (ISSM) for maintaining the appropriate operational IA posture for a system/program/enclave.
• Develop and maintain documentation for Certification & Accreditation in accordance with specified policies.
• Develop and update system security plans and other IA documentation.
• Provide support for Information Assurance Vulnerability Alerts (IAVAs) management (initiating IAVA responses and system security scans, completing remediation, extending IAVA patches and security updates to designated sites, etc.).
• Provide CM for security‑relevant information system software, hardware, and firmware.
• Develop system security policy and ensure compliance.
• Administer the user identification and authentication mechanisms of the Information System.

• Currently serving as a Senior Information Systems Security Officer (ISSO).
• Recently functioning in a Senior ISSO capacity with ownership of system security posture and compliance activities.
• Must have at least 10 years of experience as an ISSO working independently, and/or on teams maintaining secure information system operations in isolated, connected, and standalone environments.
• Must have at least 5 years of experience using tools to support IAVA management.
• Must have at least 5 years of experience using tools to support the preparation, maintenance, and management of SSPs and other security‑related documentation.
• Demonstrated knowledge of and experience with several of the following: current security tools; hardware/software security implementation; communication protocols; and encryption techniques/tools.
• In‑depth experience completing security evaluations of software systems or architectures to ensure they meet security requirements.
• In‑depth experience proposing, coordinating, implementing, and enforcing information systems security policies, standards, and methodologies, preferably on a large software or IT program.
• Demonstrated experience performing day‑to‑day security operations of large, complicated information and information processing systems.
• Must be committed to developing and adhering to best practices.
• Must possess a high level of self‑initiative and must be a solutions‑oriented team player.
• Must have excellent interpersonal skills.
• Active TS/SCI security clearance with a current polygraph is required

• Bachelor's degree in a related field and at least 12 years of relevant experience.
• Extensive experience as an Information Systems Security Officer on large software development and integration programs.