Senior Network Administrator

General Dynamics Information Technology • Sierra Vista, AZ

9d • Hybrid

About The Position

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.

Requirements

• Technical Training, Certification(s) or Degree
• 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.
• Top Secret/SCI (or TS with the ability to obtain SCI) security clearance
• 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
• US Citizenship Required: Yes

Nice To Haves

• Clearance Level Must Be Able to Obtain: Top Secret/SCI

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.

Benefits

• Comprehensive benefits and wellness packages
• 401K with company match
• Competitive pay
• Paid time off
• Variety of medical plan options
• Health Savings Accounts
• Dental plan options
• Vision plan
• 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match.
• Full flex work weeks where possible
• Variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.
• Short and long-term disability benefits
• Life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed