Senior Network Administrator

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Secret

Clearance Level Must Be Able to Obtain:

Top Secret

Public Trust/Other Required:

None

Job Family:

IT Infrastructure and Operations

Job Qualifications:

Skills:

Microsoft Windows, Network Administration, Network Infrastructures, Networking

Certifications:

None

Experience:

5 + years of related experience

US Citizenship Required:

Yes

Job Description:

Advance how our customers operate while you advance your career. Join GDIT as a Network Administrator Senior and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.

This role serves as a Sr. Network Administrator for Network Operations supporting the region of Poland. The individual will perform the full range of technical O&M responsibilities while also providing site-level leadership, tracking all network issues, mentoring junior technicians, and serving as the primary point of contact for network operations at their assigned location.

Team members provide comprehensive LAN/WAN/ICAN network services to a cluster consisting of 3 sites, including router and switch configuration, COMSEC, VoIP provisioning, DISA Node Site Coordinator (NSC) support, WAN circuit management, and cybersecurity compliance. As part of the network team, this position will also require the installation, maintenance, and troubleshooting of copper and fiber cabling, along with associated communications equipment, in accordance with all applicable DoD standards.

Success in this role is supported by the ability to thrive in a dynamic environment and communicate comfortably with both military and civilian leadership. A collaborative mindset, strong judgment, and confidence in handling evolving mission needs will help ensure smooth operations.

MEANINGFUL WORK AND PERSONAL IMPACT
As a Network Administrator Senior, the work you’ll do at GDIT will be impactful to the mission of U.S. Army Europe and AFRICOM. You will play a crucial role in network administration for mission command support..

• Installs, configures, and maintains Cisco routers, switches, and networking software (current Cisco IOS).

• Configures, manages, and troubleshoots LAN/WAN technologies including TCP/IP, BGP, OSPF, EIGRP, VPN solutions, firewalls, and Cisco Unified Communications Manager (CUCM).

• Provides support for COMSEC equipment, cryptographic devices, TACLANEs, and key management; CHIMERA/HAIPE experience a plus.

• Executes WAN circuit management and DISA NSC responsibilities.

• Installs, tests, and repairs copper and fiber cabling including CAT5/6, RJ-11, RJ-45, fiber termination, MDF/IDF, patch panels, fiber modems, and media converters.

• Performs UPS installation, repair, and troubleshooting.

• Ensures all cabling and technical room installations meet DoD TEMPEST, Army Guide 3.15, and NSTISSI PDS requirements.

• Maintains compliance with cybersecurity directives, ensuring all devices are IAVA/IAVM compliant, patched, configured, and secured.

• Creates and updates network diagrams, rack elevations, and supporting documentation using Microsoft Visio and/or PowerPoint.

• Supports multi-disciplinary operations and provides initial triage for non-network issues when acting as a lone watch stander.

 

In addition to full technical responsibilities listed above, the Senior Network Administrator will have the opportunity to:

• Serve as the primary point of contact (POC) for all network issues at their site, coordinating with theater-level leadership, DISA, higher headquarters, mission partners, and other technical teams.

• Lead and mentor junior technicians, ensuring standardization, proper configuration, and compliance with cybersecurity and operational requirements.

• Track, manage, and report all site-level network issues, degradation events, risks, maintenance actions, and long-term trends to leadership and program management.

• Oversee day-to-day work execution, validate task completion, enforce configuration/change management processes, and maintain accurate operational documentation.

• Lead troubleshooting efforts during outages or network degradation, perform