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# Information System Security Officer - SME

- **Company:** TMC
- **Location:** Huntsville, AL, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Xacta, Cyber Security, Information Systems, Data Security, Information Security Management, Information Security Management System
- **Published:** November 10, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9301692/information-system-security-officer-sme

## About the Role

US Citizenship and active Top Secret clearance with SCI eligibility required

Minimum of 10 years of relevant experience required

Bachelor's Degree required

Experience with the implementation, oversight, and maintenance of the security configuration, practices, and procedures for systems

Preferred qualifications include:

Experience with Xacta

Possession of excellent verbal and written communication skills

Possession of excellent interpersonal skills

CISSP or CompTIA Certification

## Description

TMC Technologies is in search of a SME-level Information System Security Officer to play a crucial role in the FBI's cybersecurity defense strategy. This role serves as the principal advisor to the Information System Owner (SO), Business Process Owner, and the Chief Information Security Officer (CISO) / Information System Security Manager (ISSM) on all matters, technical and otherwise, involving the security of an information system. The candidate must be a US citizen and possess a minimum of an active Top Secret clearance with Sensitive Compartmented Information (SCI) eligibility to start due to federal contract requirements.

The Information System Security Officer-SME will have the following responsibilities:

 - Responsible for ensuring the implementation and maintenance of security controls.

 - Directs and implements the necessary controls and procedures to cost-effectively protect information systems assets from intentional or inadvertent modification, disclosure, or destruction.

 - Provides guidance and direction for the physical protection of information systems assets to other functional units.

 - Provides reports to superiors regarding effectiveness of data security and makes recommendations for the adoption of new procedures.

 - Assist with reviewing, developing, and navigating the system, team, and customer through the Authority to Operate (ATO) accreditation/certification documentation process.

 - Perform network self-inspections.

 - Create new and edit existing documentation that forms the Authority to Operate (ATO) package to include the System Security Plan and IS contingency plan.

 - Develop Plan of Action and Milestone (POAMS) from vulnerability data and enter into the system of record.