Senior Network Administrator

GD Information Technology
  • Sierra Vista, Arizona
    3 days ago

    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:

    Certified Network Professional Enterprise (CCNP) | Cisco - Cisco, Cisco Certified Network Associate (CCNA) | Cisco - Cisco

    Experience:

    5 + years of related experience

    US Citizenship Required:

    Yes

    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.

    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.

     

     

    About Our Work:

    We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.

    Join our Talent Community to stay up to date on our career opportunities and events at

    gdit.com/tc.

    Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

    Numbers & Facts

    LocationSierra Vista, Arizona
    Websitegdit.com/tc

    Skills

    • Accidental Death and Dismemberment (AD&D)unmatched
    • Administrative Skillsunmatched
    • Analysis Skillsunmatched
    • Artificial Intelligence (AI)unmatched
    • Automationunmatched
    • Biometricsunmatched
    • CCNA - Cisco Certified Network Associateunmatched
    • CCNP - Cisco Certified Network Professionalunmatched
    • Cisco Network Systemsunmatched
    • Cloud Computingunmatched
    • Communication Skillsunmatched
    • Contract Requirementsunmatched
    • Defense Information Systems Agency (DISA)unmatched
    • Defense Intelligenceunmatched
    • Enterprise Protectionunmatched
    • Firewallsunmatched
    • Governmentunmatched
    • Health Planunmatched
    • Identify Issuesunmatched
    • Incident Responseunmatched
    • Information Technology & Information Systemsunmatched
    • Insuranceunmatched
    • Intelligence Communityunmatched
    • Internet Securityunmatched
    • Load Balancingunmatched
    • Maintain Complianceunmatched
    • Mentoringunmatched
    • Network Administration/Managementunmatched
    • Network Configuration Managementunmatched
    • Network Routersunmatched
    • Operational Improvementunmatched
    • Operational Strategyunmatched
    • Operational Supportunmatched
    • Operations Managementunmatched
    • Professional Servicesunmatched
    • Security Complianceunmatched
    • Software Developmentunmatched
    • Team Lead/Managerunmatched
    • Technical Deliveryunmatched
    • Technical Supportunmatched
    • Technical Writingunmatched
    • United States Citizenunmatched
    • Willing to Travelunmatched

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