Senior Network Administrator

Clearance Level
Top Secret
Network Administration
Chantilly, Virginia

REQ#: RQ42783

GDIT has an immediate opportunity for a Senior Network Administrator, with specific expertise with Cisco Nexus 9k switch fabrics, to work in our offices in Chantilly, VA

In this role you will be an active member of the milCloud 2.0 Team performing analysis, configuration, installations, upgrades, monitoring, maintenance, troubleshooting, patching, securing and repair of network infrastructure in a cloud service provider environment.  GDIT delivers the milCloud 2.0 cloud service to the Department of Defense (DoD) as an on premise commercial cloud service. The right candidate will work well with a team, exhibit excellent customer service skills at all times and be self-motivated seeking ways to improve the environment.

PLEASE NOTE: The 8-hour Shift Schedule available is:

Shift:  Swing
Days:  Thursday - Monday

Hours:  3pm-11pm


  • Provide subject matter expertise related to the engineering, configuration, installation, troubleshooting and support of Cisco Nexus 9000 series switch fabric, Firepower/ASA, and ASR routers.
  • Provide engineering and configuration support for boundary firewalls and security gateways (Palo Alto, F5)
  • Provide engineering and technical support in the design, development and implementation of milCloud 2.0 network infrastructure components, capability enhancements, and technical refresh activities.
  • Develop and maintain designated engineering design documents such as network architecture artifacts, Layer 1/2/3 Detail Designs, sample configurations, routine configuration ‘how-to’ documents for network admins, rack/cable cut sheets, and prepare technical presentations with current information.
  • Test / validate deployment of security patches and software upgrades, non-disruptive whenever possible, in a lab environment, then prepare detail instructions for operations to perform those activities in production.
  • Conduct technical analyses of engineering and installation documentation; such as, design packages, site preparation, and installation plans pertinent to the design, installation, and checkout of communication systems.
  • Occasional travel to remote sites (OKC, NC, MGM)
  • Occasional tasking outside of normal business hours for incident support and maintenance windows.
  • Provides support for issues coming into 24/7 Service Desk via the phone and ticketing systems.

Required Qualifications:

  • DoD Top Secret security clearance or IT1 with current SSBI/T5 investigation in JPAS
  • Bachelors Degree in Computer Science, Engineering, or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience
  • 8+ years of professional experience as a network engineer managing enterprise data center or service provider networks
  • Cisco Certified Network Associate (CCNA) certification
  • Solid understanding of network fundamentals, TCP/IP routing and switching, Ethernet, and fault-tolerant networking using Cisco technology
  • Experience operating, maintaining, configuring, making changes to, and troubleshooting Cisco Nexus 9000 switches, Firepower/ASA security appliances and ASR routers
  • Solid understand of VPN technologies (IPSec and SSL VPNs)
  • Solid understanding of Layer 3/4 ACLs, stateful firewalls and advanced, application layer firewall technology.
  • Experience with Solarwinds monitoring and IP Address Management (IPAM)
  • Experience with troubleshooting network connectivity and performance issues using device CLIs, and tools such as network protocol analyzers
  • Excellent interpersonal and communication skills needed to work with business partners, engineering, operations and vendors
  • Strong analytical and strategic thinking skills with a service oriented mindset
  • Quick learner, detail oriented; demonstrable thoroughness and strong ownership of work
  • Good team player with a strong willingness to participate and help others
  • Able to prioritize in a fast moving, high pressure, constantly changing environment; high sense of urgency
  • Strong time management and organizational skills.
  • Ability to work in a virtual team environment as well as independently
  • Able to lift up to 50 lbs

Desired Qualifications:

  • CCNP Routing and Switching certification strongly preferred

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.

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.