Senior Network Administrator

General Dynamics Information Technology, Inc.

$85K — $115K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of related experience in network administration
  • Technical training or degree in a relevant field
  • Strong knowledge of enterprise routing and switching protocols (OSPF, BGP, VRRP/HSRP)
  • Proficient with Cisco, Juniper, and Palo Alto networking equipment
  • In-depth understanding of Army cybersecurity compliance standards

Responsibilities

  • Act as the Alternate Network Team Lead to ensure operational readiness
  • Maintain and secure the Army enterprise network environments
  • Provide advanced network administration, monitoring, and troubleshooting
  • Lead incident response efforts for critical network outages
  • Collaborate with external mission partners and stakeholders
  • Manage network infrastructure components like routers and firewalls
  • Mentor junior administrators and participate in technical planning sessions

Benefits

  • Comprehensive medical, dental, and vision plans with flexibility options
  • 401(k) plan with company match
  • Generous paid time off policies including vacation and personal leave
  • Short and long-term disability insurance options
  • Life insurance and additional coverage for accident-related incidents
  • Hybrid work model with flexible scheduling options
Full Job Description
Type of Requisition:
Regular

Clearance Level Must Currently Possess:
Top Secret/SCI

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

Public Trust/Other Required:
None

Job Family:
IT Infrastructure and Operations

Job Qualifications:

Skills:
Documentations, Enterprise Network, Network Configurations, Network Services, Technical Support
Certifications:
None
Experience:
5 + years of related experience
US Citizenship Required:
Yes

Job Description:

NETWORK ADMINISTRATOR SENIOR

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

    The likely salary range for this position is $85,000 - $115,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

    Scheduled Weekly Hours:
    40

    Travel Required:
    Less than 10%

    Telecommuting Options:
    Hybrid

    Work Location:
    USA AZ Sierra Vista

    Additional Work Locations:

    Total Rewards at GDIT:
    Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 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. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as 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. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

    Our Identity Verification Process:
    As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

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