💼 Full-Time Position

Senior Cybersecurity SIGINT SME (5339) (TS/SCI CI Poly) (Ft. Belvoir, VA )

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SMX
📍 Fort Belvoir, VA, United States
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Location
Fort Belvoir, United States
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Posted
June 26, 2026
Type
Full-Time
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Full-Time Opportunity: This is a permanent, full-time position with a competitive package and real career growth potential.

Job Description

SMX is seeking a **Cybersecurity SME Senior SIGINT** to support GISA at Fort Belvoir, VA. The successful candidate will have experience working as an ISSO on large Department of Defense contracts and leading a team of other cyber security professionals in support of project and client goals and objectives.

**This is a full-time onsite position in Ft. Belvoir, VA.**

**Essential Duties & Responsibilities**

+ Continuous Monitoring Activities within 120-100 days of ATD:
+ Self-Test Security Controls are completed and updated annually.
+ Diagrams updated.
+ Hardware/Software Lists
+ Scans in artifacts or in **CyborgBunny** systemare updated **.**
+ Ensure POA&M Elements for Security Controls in **XACTA** are updated, completed by ISSO, or closed by DAO.
+ RMF documents updated within 12-18 months (Incident Response, Contingency Plan, Configuration Plan, Disaster Recovery Plan, Privileged User Guide, General User Guide)
+ Monitor and revi...