Sr. Network Administrator Security Clearance

Position: Sr. Network Administrator with Security Clearance
SMS is seeking a Network Administrator at Fort Belvoir, VA to support operations on a large, high-profile DOD 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.

As a dynamic systems integrator, SMS offers proven solutions in engineering, operations, cybersecurity, and digital transformation. With expertise in modernizing and optimizing legacy infrastructure and systems, ensuring operational efficiency, and designing, implementing, and managing secure environments, SMS supports business and mission goals with proficiency, quality, and integrity. SMS has been serving the advanced information technology needs of the federal government since 1976, delivering talented teams and innovative, cost-effective solutions and services to support our customers' missions for more than 45 years.

SMS is headquartered in McLean, Virginia, with offices and on-site operations at customer locations throughout the United States. For additional information on SMS, visit  . Submit your resume today! Responsibilities
***** Short Term Assignment April 2, 2026 - October 31, 2026
***** This could be a little longer.

Responsibilities include:

* Evaluate various components of the networ including providing specifications for network architecture, evaluating current capabilities, and performing needs assessments.
* Support level duties will include monitoring, modification, and evaluation of network equipment.
* Primary focus will be handling internal projects for operations, supporting driving time-sensitive initiatives and ITIL service area activities (problem management, incident management, service request fulfillment, etc.) and specific tasks leading to a successful conclusion of operations evaluation, configuration/change management, and service level agreements (SLA) compliance.
* Adhere to and improve Standard Operating Procedures in a matrixed organization supporting the prime contractor and the Defense Threat Reduction Agency.
* Responsible for evaluating technologies spanning five networks and must have experience in one or more of the following technologies:
* Cisco Catalyst and Nexus technologies
* F5 Load Balancers
* Palo Alto and Juniper SRX firewalls
* Service Now This is an onsite work opportunity with remote work available as approved by the customer. The P rimary work location:
Fort Belvoir, VA with some work being completed at the Reston, VA location. Qualifications

Required Qualifications :
* Must possess an active DoD Secret Clearance
* Bachelor's degree and 8-12 years of prior relevant experience or Master's degree with 6-10 years of prior relevant experience. Specific experience, education, and training may be considered in lieu of a degree.
* Excellent oral and written communication for change procedures and management updates
* Experience with Layers 1-4 of the OSI Model
* Experience utilizing Secure

CRT, STIGViewer, and Evaluate STIG.
* Must be a self-starter and work equally well alone and as a team.
* Must be experienced in following strict change control and provide high quality, prompt customer service to DTRA personnel
* Required Active

Certifications:

* DoD 8570 compliant IAT Level II certification (Security+ CE preferred)
* Cisco Certified Network Associate, F5 Certified Administrator, and/or Palo Alto Networks Certified Network Security Administrator Desired Qualifications :
* Active DoD Top Secret/SCI Clearance or ability/willingness to upgrade clearance level
* Current CCNP, F5-CSE, or PCSFE certifications
* Experience with Layers 6 & 7 of the OSI model as it pertains to Next-Gen Firewalls (Palo Alto and Juniper) and Load Balancers (F5) SMS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employmen t without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.