Senior Network Administrator

Public Trust: None

Requisition Type: Regular

Your Impact

Own your opportunity to support our nation's defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure.

Job Description

NETWORK ADMINISTRATOR SENIOR

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.

MEANINGFUL WORK AND PERSONAL IMPACT

• Act as Alternate Network Team Lead

• Ensure stability, security, and efficient operation of Army enterprise network environments within the NETCOM Global Management Team (GMT).

• Provide advanced administration, monitoring, configuration, and troubleshooting of critical network infrastructure for the Army Enterprise Network and JRSS environments.

• Operate effectively within a high‑tempo 24/7/365 mission environment, supporting continuous operations.

• Lead high‑impact incident response activities and coordinate restoration efforts.

• Maintain and secure boundary protection systems in accordance with DoW and Army cybersecurity standards.

• Collaborate with mission partners including DISA, RCCs, and RNECs/NECs.

• Manage routers, firewalls, load balancers, and related network services.

• Contribute to automation improvements that enhance operational efficiency.

• Maintain accurate technical documentation and ensure compliance with enterprise security mandates.

• Apply deep technical knowledge and strong diagnostic skills to support mission‑critical systems.

• Mentor junior network administrators and support their technical development.

• Participate in engineering initiatives, enterprise planning sessions, and technical review activities.

WHAT YOU’LL NEED TO SUCCEED

Bring your technology expertise and drive for innovation to GDIT. The Network Administrator Senior must have:

● Education: Technical Training, Certification(s) or Degree

● Experience: 5+ years of related experience

● Hybrid Work Location: 1 day a week at Ft Huachuca, Sierra Vista, AZ. 4 days remote.
● Technical skills:

• Experience supporting DoWIN‑Army or DoW enterprise networking environments

• Mastery of enterprise routing and switching (OSPF, BGP, VRRP/HSRP)

• Strong experience with Cisco, Juniper, Palo Alto, or other Army‑utilized platforms

• Working knowledge of DISA STIGs, RMF, ACAS, and Army cybersecurity compliance

• DoW 8140 certification, such as; Security+, CASP, or SecurityX, or CCNA

• Networking certification such as; JNCIS, JNCIA, JNCIS-ENT, JNCIP, or CCNP required.

● Security clearance level: Top Secret/SCI (or TS with the ability to obtain SCI)

● Role requirements:

• Ability to support global maintenance windows and after‑hours operational needs

• Ability to work onsite or hybrid depending on mission requirements

• Capability to operate effectively in a 24/7 mission‑critical environment

• Strong troubleshooting, communication, and analytical skills

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

Years of Experience

5 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

Cisco Certified Network Associate (CCNA) | Cisco - Cisco

Certified Network Professional Enterprise (CCNP) | Cisco - Cisco

Travel Required

Less than 10%

Citizenship

U.S. Citizenship Required