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Information System Security Officer (ISSO)

MTSI
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WA
Aug 02, 2026
MTSI is seeking a Information System Security Officer (ISSO) who responsible for maintaining the appropriate operational security posture for assigned information systems and ensuring full compliance with Department of Defense (DoD) and Special Access Program (SAP) security requirements. The ISSO will oversee, implement, and manage the system’s security controls throughout its life-cycle.


Your essential job functions will include but may not be limited to:
  • Assist the ISSM in meeting their duties and responsibilities. 
  • Ensure systems are operated, maintained, and disposed of in accordance with security policies and procedures as outlined in the security authorization package;
  • Attend required technical and security training (e.g., operating system, networking, security management) relative to assigned duties.
  • Ensure all users have the requisite security clearances, authorization, need-to-know, and are aware of their security responsibilities before granting access to the IS.
  • Report all security-related incidents to the ISSM;
  • Conduct periodic reviews of information systems to ensure compliance with the security authorization package.
  • Coordinate any changes or modifications to hardware, software, or firmware of a system with the ISSM and AO/DAO prior to the change.
  • Monitor system recovery processes to ensure security features and procedures are properly restored and functioning correctly.
  • Ensure all IS security-related documentation is current and accessible to properly authorized individuals.
  • Ensure audit records are collected, reviewed, and documented (to include any anomalies).

Required:
  • 10 years related experience, especially in developing RMF packages or bodies of evidence.
  • 2 years SAP experience required.
  • Prior performance in roles such as System, Network Administrator or ISSO.

Education Requirements:
  • Bachelor's Degree in a related discipline.

Clearance Requirements:
  • Current/active Top Secret/SCI; Current or recent DoD SAP access
  • Subject to a Counterintelligence (CI) polygraph

The pay range for this position is $160,000/year to $190,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI offers a full range of medical benefits, 401k, ESOP, paid time off, and other benefits, dependent on the position offered. Base pay information is based on market location. Applications will be accepted on an ongoing basis. This posting will be renewed periodically until the position is filled.
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Job ID

1133913285359|loc1

Security Clearance

TS/SCI
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