Senior Network Administrator — Hybrid/Remote TS/SCI

General Dynamics Corporation; Sierra Vista (AZ); Hybrid; USD 85,000 - 115,000; Full time

Job summary

GDIT is seeking a Network Administrator Senior to advance customer operations and their career in enterprise IT. You will act as Alternate Network Team Lead, ensuring stability, security, and efficient operation of Army enterprise networks within GMT.

You will provide advanced administration, monitoring, configuration, and troubleshooting for critical networks in Army environments, working in a high-tempo 24/7/365 setting and coordinating incident responses and restorations.

Qualifications

• 5+ years of related experience
• 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.

Responsibilities

• 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.

Skills

Documentations

Enterprise Network

Network Configurations

Network Services

Technical Support

Education

Technical Training, Certification(s) or Degree

Job description

GDIT is seeking a Network Administrator Senior to advance customer operations and their career in enterprise IT. You will act as Alternate Network Team Lead, ensuring stability, security, and efficient operation of Army enterprise networks within GMT.

You will provide advanced administration, monitoring, configuration, and troubleshooting for critical networks in Army environments, working in a high-tempo 24/7/365 setting and coordinating incident responses and restorations.