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🥝 Information System Security Officer (ISSO)

Marathon TS | Huntsville, Alabama, United States | Posted May 12, 2026

Job Description

Information System Security Officer (ISSO)

Huntsville AL - Remote


A Day in the Life of an Information System Security Officer:

As an Information System Security Officer, you will be expected to manage and oversee the cybersecurity risk management lifecycle of mission-critical, life-safety information systems across the DoD environment.

Daily tasks are expected to include:

  • Ensure that systems comply with DoD 8500-series directives, NIST SP 800-53 controls, and other applicable federal security requirements.

  • Monitor and enforce compliance with established security methodologies across all phases of system operations.

  • Create and maintain comprehensive policies and procedures that detail security controls and system boundaries.

  • Identify, document, and manage system vulnerabilities and mitigation strategies in POA&Ms.

  • Act as a liaison be...

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