Senior Network Administrator

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

Job summary

GDIT in Sierra Vista, AZ is seeking a Network Administrator Senior to advance Army enterprise networks and support mission critical operations.

You’ll act as Alternate Network Team Lead, ensure security and stability, and handle advanced administration, monitoring, and troubleshooting for Army environments, collaborating with DISA, RCCs, and RNECs.

Qualifications

• 5+ years of related experience
• Education: Technical Training, Certification(s) or Degree

Responsibilities

• Act as Alternate Network Team Lead
• Ensure stability, security, and efficient operation of Army enterprise network environments
• Provide advanced administration, monitoring, configuration, and troubleshooting of critical network infrastructure
• Operate in a 24/7/365 mission environment
• Lead high-impact incident response activities and coordinate restoration efforts
• Maintain and secure boundary protection systems per DoW and Army cybersecurity standards
• Collaborate with DISA, RCCs, and RNECs/NECs
• Manage routers, firewalls, load balancers, and related network services
• Contribute to automation improvements
• Maintain accurate technical documentation and ensure compliance with security mandates
• Apply deep technical knowledge and diagnostic skills
• Mentor junior network administrators
• Participate in engineering initiatives and technical reviews

Skills

Enterprise Network

Network Configurations

Network Services

Documentation

Technical Support

Tools

Cisco

Juniper

Palo Alto

Job description

Responsibilities for this Position

Location: USA AZ Sierra Vista

Full Part/Time: Full time

Job Req: RQ227801

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

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

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

• 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

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.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

GDIT supports and secures some of the most complex government, defense, and intelligence projects across the country.