Senior Communications Security (COMSEC) Engineer

Leidos • Fort Belvoir, VA, United States • Posted June 14, 2026

Location Fort Belvoir, VA
Job Type Full-time
Category other-general
Posted June 14, 2026
**Description**

Leidos is seeking a Senior Communications Security (COMSEC) Engineer in Fort Belvoir, VA to support large-scale migration and operations on a large, high-profile DoW contract. The I3TS program provides enterprise-wide IT support to enable DTRA’s Information Management & Technology Directorate (ITD) to consolidate, modernize, and continuously innovate the delivery of IT services and mission capabilities to DTRA’s internal and external mission partners operating in CONUS and OCONUS locations  

The Senior COMSEC Engineer will provide full life-cycle IT support across numerous customer systems.  The COMSEC Engineer will implement COMSEC policies and procedures, ensuring the protection of the organization’s information systems from unauthorized access or use.  The successful candidate should have hands-on experience configuring and keying COMSEC devices as well as a solid understanding of networking equipment and information security.  The candidate should ...

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