Senior Network Administrator

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, performing hands-on diagnostics while directing junior personnel when necessary.
• Coordinate cross-discipline support with System Administrators to resolve multi-layered issues and maintain mission continuity.
• Maintain and validate network diagrams, accreditation artifacts, and configuration baselines for the location.
• Assist with planning and execution of network modernization, lifecycle refreshes, and technology upgrades affecting the site.
• Ensure compliance with all DoD, DISA, and EMITS program policies, producing timely and accurate reporting for mission partners and program leadership.

WHAT YOU'LL NEED TO SUCCEED
Bring your technology expertise and drive for innovation to GDIT. The Network Administrator Senior must have:

• Education: Bachelors Degree ion a related field (years of experience can be substituted for degree requirement)
• Experience: 3+ years of related experience
• Technical skills: Demonstrated experience as a senior network technician or lead in a DoD or enterprise network environment; Experience configuring Cisco routing/switching technologies, CUCM, VPNs, firewalls, and advanced routing protocols; Knowledge of WAN circuits and experience with MPLS transport; Experience ensuring patch and IAVA compliance across network environments.; Experience with TACLANE devices, cryptographic key management, and secure communications; Ability to work independently, remote environment and make rapid decisions during operational events;
• Security clearance level: Secret Clearance with a T5/SSBI investigation (required)
• US citizenship required
• Role requirements: Cisco Certified Network Professional (CCNP); DoD 8570 IAT Level II certification; Computing Environment (CE) Certification - (CCNP satisfies this requirement.); Ability to successfully complete the Cisco Collaboration Core (CLCOR) exam to support VoIP related requests; ITIL v4 Foundation certification - (within 90 days if not held at hire); IT Project Management certification preferred (Project+, CAPM, PMP); Fiber Optic Association (FOA) or BICSI certification preferred for fiber/ISP/OSP work.
• Desired Certifications: Juniper certification or proven Juniper experience highly desired (e.g., JNCIA, JNCIS).
• Must possess a valid U.S. driver's license and an international driver's permit
• Must be willing to participate in an on-call schedule to ensure continuous network support.
• Strong communication skills and the ability to interface directly with leadership, mission partners, and stakeholders.

GDIT IS YOUR PLACE
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

OWN YOUR OPPORTUNITY
Explore an enterprise IT career at GDIT and you'll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

Work Requirements