Network Administrator - Senior

Clearance Level
Interim Top Secret
Network Administration
Fort Belvoir, Virginia

REQ#: RQ121353

Travel Required: Less than 10%
Requisition Type: Regular

GDIT is seeking a highly motivated and experienced Senior Network Administrator to support a Defense Threat Reduction Agency mission by ensuring day-to-day operations and high availability of a wide area network that spans redundant data centers and more than 60 geographically separated sites worldwide.

  • Works with Cisco networking devices and firewalls, KG-175 family of encryptors, and various network management tools.

  • Monitors network performance and troubleshoots and resolves complex problems to maintain operating efficiency and ensure quality transmission service on the network.

  • Uses subject matter expertise to diagnose and solve complex issues and communicates the issues effectively to both technical and non-technical audiences. 

  • Configures, implements, and troubleshoots: Virtual Local Area Networks, Access Control Lists, 802.1x port-based network access control, Virtual Private Networks, Network Time Protocol, Simple Network Management Protocol version 3, Remote Authentication Dial-In User Service, Dynamic Host Configuration Protocol, Microsoft’s Network Policy Server, and General Dynamics’ GEM One Encryptor Manager.

  • Configures and secures: Cisco switches and firewalls, network encryption devices specifically KG-175 family, network printers, and network KVMs in accordance with industry/security best practices and DISA STIG checklist.

  • Develops, modifies, and updates process and technical documentation, logical network diagrams that include physical layout and location of devices and the connection between devices participating on the network, technical implementation plans and related reports.

  • Evaluates existing network systems to ensure network capacity meets current and future network requirements. Analyzes customer requirements to determine optimal network solutions.

  • Provides network cable management, tests, and troubleshoots CAT 5e, CAT 6, CAT 6a, and multi-mode fiber cables. Also terminates copper cables as required.

  • Evaluates and recommends networking products and software upgrades

  • Maintains operating efficiency and stability, and ensures the security and integrity of all systems and data

  • Function in a "Tier 3" support role, resolving the most complex network issues escalated by Tier 2 support

  • May coach and provide guidance to less-experienced professionals

  • May serve as a team or task lead

Experience Requirements

  • 8+ years of related experience

Education Requirements 

  • BA/BS (or equivalent experience)

Certification Requirements

  • IAT Level II certification in accordance with DoD 8140.01M Cyberspace Workforce (i.e., Security +)

  • Computing environment certification (i.e., Network + or CCNA)- Preferred

Security Requirements 

  • Must have a Top Secret security clearance 

Desired Qualifications:

  • Ability to work both independently and within a team and an active desire to learn.

#armajobs #gditpriority #DSMSJobs 

About Our Work

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

COVID-19 Vaccination

GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.