Network Administrator

Type of Requisition: Regular

Clearance Level Must Currently Possess: Secret

Clearance Level Must Be Able to Obtain: Secret

Public Trust/Other

Required:

None

Job Family: IT Infrastructure and Operations

Job Qualifications:

Skills: Computer Networking, Network Support, Network Systems

Certifications: None

Experience: 8 + years of related experience

US Citizenship

Required:

Yes

GDIT has an exciting opportunity to support the Security Assistance Group – Ukraine (SAG-U) as a member of our Enterprise Mission Information Technology Services (EMITS) program supporting U.S. Army Europe and Africa’s (USAREUR-AF) mission in Wiesbaden, Germany.

The Network Administrator will be responsible for overseeing the day-to-day operations and security of various network infrastructures, including NIPRNet, SIPRNet, and other essential systems. This position focuses on hands‑on administration, incident response, and implementing network enhancements to core routing, switching, and security services, ensuring the robust and secure operation of mission‑critical networks.

As a Network Administrator, you will be the frontline defender of network availability and performance. Your hands‑on expertise will ensure that mission‑critical systems remain stable, secure, and responsive, directly enabling SAG‑U’s operational readiness and ability to collaborate across the theater.

• Manage the daily operations, maintenance, and security of routers, switches, and firewalls across multiple network enclaves.
• Provide Tier III support, serving as an escalation point to resolve advanced network issues impacting the mission.
• Collaborate with systems and security teams to identify requirements, monitor network traffic, and address security concerns.
• Implement network enhancements and expansions with a focus on core routing, switching, and network security services.
• Participate in procurement processes, including design development and the creation of initial bills of materials.
• Offer technical training and maintain documentation for Help Desk personnel and other departments.
• Collaborate with vendors for the design and implementation of new network systems.

• Education: High School Diploma/GED with 8 years of experience, Associate’s with 6 years, or Bachelor’s with 4 years in network administration, IT operations, or a related field.
• Experience: 4+ years supporting DoD network infrastructure design or enterprise architecture planning
• Technical
  
  Skills:
  
  Proven ability in managing classified (SIPRNet) and unclassified (NIPRNet) network environments. Hands‑on experience with Cisco ISE, Firepower Management Center (FMC), and Cisco Umbrella DNS services. Strong knowledge of ACLs, Route Maps, ports/protocols, and advanced security implementations.
• Clearance: Active DoD TS/SCI clearance required
• Citizenship: U.S. Citizenship required

• Excellent written communication and diagramming skills
• Ability to draft planning documents, architectural justifications, and risk mitigation recommendations
• Experience working in collaborative IPT environments
• Familiarity with RMF processes and cyber input to network design

• Required: IAT Level II (e.g., Security+ CE), Cisco CCNA
• Preferred: CCNP, ITIL v4

• Experience with advanced networking concepts, including URL/Network filtering, Geo‑Blocking, and virtualization technologies.
• Proficiency in developing complex network diagrams and supporting cybersecurity accreditation activities.

At GDIT, the mission is our purpose, and our people are at the center of everything we do.

• Growth: AI‑powered career tool that identifies career steps and learning opportunities
• Support:
  An internal mobility team focused on helping you achieve your career goals
• Rewards:
  Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
• Community:
  Award‑winning culture of innovation and a military‑friendly workplace

Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire…