Network Administrator Senior

General Dynamics Information Technology (GDIT); United States; On-site; USD 85,000 - 101,000; Full time

Job summary

General Dynamics Information Technology (GDIT) seeks a seasoned network infrastructure professional for the US BICES-X program. You will oversee global WAN/LAN networks, data center fabric, and device configurations to ensure high availability in a government setting.

You will drive ITSM integration via ServiceNow, maintain CMDB data, and implement disaster recovery plans while mentoring junior staff and collaborating across teams.

Qualifications

• Active Secret clearance (or higher) and ability to obtain Top Secret/SCI.
• 5+ years of experience implementing, maintaining, and securing complex enterprise WAN/LAN environments.
• Bachelor's Degree or equivalent professional experience.
• Current certifications in networking and security (e.g., CCNA, Security+ CE).
• Expert knowledge of routing/switching (OSPF, BGP, STP) and physical layer standards (fiber/copper/transceivers).
• Proficiency administering and securing enterprise network architectures for voice, video, and data services.
• Advanced knowledge of ServiceNow ITSM modules, including change, incident, and configuration management.
• Commitment to government security and experience in regulated environments.
• Exceptional communication skills for diverse audiences.

Responsibilities

• Oversee lifecycle of a global backbone and data center fabric for maximum service availability.
• Lead integration of ITSM processes via ServiceNow for incidents and changes.
• Maintain CMDB with rack elevations, port maps, IP assignments for audits.
• Configure and maintain routers, switches, encryption devices, per global standards.
• Troubleshoot complex connectivity issues to ensure enterprise data flow.
• Enforce configuration standards and STIG compliance to mitigate risk.
• Collaborate with cross-functional teams to translate designs into network infra.
• Mentor mid-level and junior staff on best practices and discipline.
• Develop disaster recovery and rapid restoration procedures for resilience.
• Monitor network performance to identify bottlenecks and optimize capacity.
• Manage hardware logistics, RMAs, vendor coordination, spare parts.

Skills

Cisco Technologies, Network Administr

Network Infrastructures

ITSM

Security

WAN/LAN

Communication

Education

Bachelor's Degree or equivalent

Tools

ServiceNow ITSM

Job description

Type of Requisition:
Regular

Clearance Level Must Currently Possess:
Secret

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

Public Trust/Other Required:
None

Job Family:
IT Infrastructure and Operations

Job Qualifications:

Skills:
Cisco Technologies, Network Administration, Network Infrastructures
Certifications:
None
Experience:
5 + years of related experience
US Citizenship Required:
Yes

Job Description:

Join a dynamic and consistently expanding program at GDIT! The US Battlefield Information Collection and Exploitation System eXtended (US BICES-X) is a leading-edge initiative directly supporting critical DoW intelligence information sharing addressing current and emerging global threats to mission partners, coalition forces, and developing nations. With a globally distributed team aligned with each combatant command, US BICES-X plays a vital role in supporting the warfighter and their missions. We are seeking a creative and highly motivated professional eager to tackle real-world challenges within a collaborative and fast-paced environment.

Responsibilities

• Oversee the lifecycle of a global multiplanar backbone and data center fabric, ensuring maximum service availability through rigorous hardware/software management and proactive system maintenance.
• Lead and enforce theintegration of ITSM processesvia ServiceNow, ensuring that incidents, service requests, and configuration changes are consistently documented.
• Maintain an up-to-dateConfiguration Management Database (CMDB), tracking rack elevations, port maps, and IP assignments for audit readiness and system accuracy.
• Configure and maintain network devices, including routers, switches, encryption devices, and related hardware, adhering to global infrastructure standards.
• Troubleshoot and resolve complex connectivity issues to maintain enterprise-wide data flow, ensuring service availability for critical operations.
• Implement and enforce configuration standards, includingSTIG compliance auditsand proactive risk mitigation processes.
• Collaborate with cross-functional teams to transform high-level designs into operational physical and logical network infrastructure.
• Provide mentorship and technical support to mid-level and junior team members, instilling best practices and enforcing operational discipline.
• Develop and implement disaster recovery and rapid restoration procedures to maintain network resilience and reduce downtime.
• Monitor network performance to identify and resolve bottlenecks, enhancing data traffic flow and ensuring mission-critical capacity.
• Manage hardware logistics, including RMAs, vendor coordination, and spare parts inventory to minimize repair times.
• Serve as an on-call escalation point, delivering timely resolution of infrastructure issues.

Required Qualifications

• Active Secret security clearance (or higher).
• 5+ years of experienceimplementing, maintaining, and securing complex enterprise WAN/LAN environments.
• Bachelor's Degreeor equivalent professional experience.
• Current professional certificationsin networking and security, such asCCNA,Security+ CE, or equivalent.
• Expert-level knowledge of networking principles, including routing and switching protocols (OSPF, BGP, STP), and physical layer standards (fiber/copper/transceivers).
• Proficiency in administering and securing various network architectures that support enterprise-level voice, video, and data services.
• Experience administering and securing enterprise network architectures, supporting voice, video, and data services.
• Advanced knowledge ofServiceNow ITSM modules, including change, incident, and configuration management practices.
• Commitment togovernment security and experience working in regulated environments.
• Exceptional communication skills, capable of effectively articulating complex technical concepts to diverse audiences, including technical teams and leadership.

Preferred Qualifications

• Bachelor’s degreein a technical field (e.g., Computer Science, Networking) or equivalent professional experience.
• Advanced certifications, such asCisco CCNPorJuniper JNCIP.
• Experience withasset managementandphysical infrastructure planning, including rack-level design and documentation.
• Knowledge ofvirtualization technologies and their application to network services.
• Hands-on experience withfirewall administrationandACL management.

The likely salary range for this position is $85,093 - $100,625. 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%

T elecommuting Options:
Onsite

Work Location:
USA FL MacDill AFB

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.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans