Senior Network Administrator Jobs

1 - 20 of 35 Jobs

Sr Network AdministratorJob Title - Sr Network Administrator

Ledgent TechnologyCompany Name - Ledgent Technology

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Rancho Cordova, California, USA

Contract

A regional bank is seeking a Sr. Network Administrator to support enterprise systems across multiple locations in a 24/7 environment. This role blends hands-on network/server work with project leadership and team mentoring. Contract-to-Hire | Rancho Cordova | 100% Onsite Duties: Maintain Windows/Linux servers, virtualization, and backups Support LAN/WAN, firewalls, switches, and remote connectivity Administer O365, Active Directory, and server applications Lead disaster recovery and system optim

Senior Network AdministratorJob Title - Senior Network Administrator

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Falls Church, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Network Administration Job Qualifications: Skills: Border Gateway Protocol (BGP), Cisco Routers and Switches, MPLS Networking, Network Security, Network Services Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Network Administrator position supporting the Army National

Senior Network AdministratorJob Title - Senior Network Administrator

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Falls Church, Virginia, USA

Full-time

Sr. Network AdministratorJob Title - Sr. Network Administrator

LeidosCompany Name - Leidos

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Shiloh, Illinois, USA

Full-time

The Defense group at Leidos has a career opening for a Senior Network Administrator on a DISA contract. This role is primarily on the customer site at Scott AFB, IL. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS). PRIMARY RESPONSIBILITIES: Works independently to perform configuration of assets to include switches, load balancers, routers, and FirewallsPerform routine maintenance, troubleshooting, updates and implemen

Senior Network AdministratorJob Title - Senior Network Administrator

SAICCompany Name - SAIC

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Chantilly, Virginia, USA

Full-time

Job ID: 2505563 Location: CHANTILLY, VA, US Date Posted: 2025-07-14 Category: Information Technology Subcategory: Network Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC has an opening for a Senior Network Administrator. This position is based on site in Chantilly, VA. Duties include: Configuring and maintaining a classified

Sr. Network AdministratorJob Title - Sr. Network Administrator

Luna Data Solutions, Inc.Company Name - Luna Data Solutions, Inc.

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Austin, Texas, USA

Contract

Luna Data Solutions has an immediate contract position opening (contract term approximately 6 months with possible extension and/or possible conversion to a FTE at some point) for a Sr. Network Administrator resource for our client in San Marcos, TX. *This is a 100% onsite position, with on call rotation responsibilities. *Note: All candidates must be able to work on a W2 basis; No C2C is allowed. Role: Sr. Network Administrator Role Description: This resource will be working onsite supporti

Senior Network AdministratorJob Title - Senior Network Administrator

SAICCompany Name - SAIC

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Reston, Virginia, USA

Full-time

Job ID: 2415343 Location: RESTON, VA, US Date Posted: 2025-04-18 Category: Information Technology Subcategory: Network Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC, a leading provider of systems development & deployment, targeting & intelligence analysis, systems engineering & integration, and training capabilities and solutions for the Int

Senior Network AdministratorJob Title - Senior Network Administrator

General DynamicsCompany Name - General Dynamics

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Falls Church, Virginia, USA

Full-time

Senior Network AdministratorJob Title - Senior Network Administrator

Oak Ridge National LaboratoryCompany Name - Oak Ridge National Laboratory

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Oak Ridge, Tennessee, USA

Full-time

Requisition Id 15056 Overview: As a U.S. Department of Energy (DOE) Office of Science national laboratory, ORNL has an impressive 80-year legacy of addressing the nation's most pressing challenges. Our team is made up of over 7,000 dedicated and innovative individuals! Our goal is to create an environment where a variety of perspectives and backgrounds are valued, ensuring ORNL is known as a top choice for employment. These principles are essential for supporting our broader mission to drive sci

Senior Network Administrator (TS/SCI with Poly Clearance Required)Job Title - Senior Network Administrator (TS/SCI with Poly Clearance Required)

FluorCompany Name - Fluor

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Aurora, Colorado, USA

Full-time

Job Description This position requires an active (or ability to obtain) TS/SCI with Polygraph Clearance The Senior Network Administrator has advanced knowledge within designated Information Technology (IT) area of responsibility that is applied to broad and diverse assignments and associated requirements. This role plans and coordinates activities related to the design, development, implementation and integration of IT solutions. The Network Administrator analyzes, evaluates, and recommends

IT SPECIALIST - SR. IT SPECIALIST - Network Administrator/SpecialistJob Title - IT SPECIALIST - SR. IT SPECIALIST - Network Administrator/Specialist

Southwest Research InstituteCompany Name - Southwest Research Institute

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San Antonio, Texas, USA

Full-time

Who We Are: Ongoing threats to national security require timely intelligence data, including signal intelligence obtained through electronic surveillance. Since the 1940s, SwRI has supported U.S. and friendly foreign governments, as well as commercial clients. Objectives of this Role: Responsible for handling centralized network management.Administer DNS/DHCP and wireless network systems.Cross-train into other network disciplines. Daily and Monthly Responsibilities: Configuration of routing an

Senior Network Operations AdministratorJob Title - Senior Network Operations Administrator

LeidosCompany Name - Leidos

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Lorton, Virginia, USA

Full-time

The Multi Domain Solutions Division at Leidos is looking for a Senior Network Operations Administrator to support a fast-paced program with the Air Force Life Cycle Management Center. This role involves supporting the delivery of comprehensive IT and support services to ensure mission success while adhering to DoD standards and regulations. The Senior Network Operations Administrator will ensure accounts for the enterprise solution are created and managed across multiple classification levels. P

IT SPECIALIST - SR. IT SPECIALIST - Network AdministratorJob Title - IT SPECIALIST - SR. IT SPECIALIST - Network Administrator

Southwest Research InstituteCompany Name - Southwest Research Institute

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San Antonio, Texas, USA

Full-time

Who We Are: Network Telecommunications Services: Responsible for connectivity and communications needs for the Institute. This includes network administration of routing, switching, unified communications, wireless and ISP connectivity. In addition, we manage AV operations and the telecom infrastructure inside/outside plant. Objectives of this Role: Handle centralized network management.Administer DNS/DHCP and wireless network systems.Cross-train into other network disciplines. Daily and Month

Network Administrator Senior - TS/SCI requiredJob Title - Network Administrator Senior - TS/SCI required

General DynamicsCompany Name - General Dynamics

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North Carolina, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Network Administration Job Qualifications: Skills: Network Configurations, Networking Hardware, Network Software Certifications: None Experience: 10 + years of related experience ship Required: No Job Description: Network Administrator Senior - TS/SCI required Transform technology into opportu

Network Administrator Senior _TS/SCI with PolygraphJob Title - Network Administrator Senior _TS/SCI with Polygraph

General DynamicsCompany Name - General Dynamics

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Springfield, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Network Administration Job Qualifications: Skills: Network Configurations, Network Performance, Network Upgrades Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as a Network Administrator Seni

Senior Network/Systems AdministratorJob Title - Senior Network/Systems Administrator

GovCIOCompany Name - GovCIO

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Remote

Full-time

Overview GovCIO is currently hiring for a Senior Network/Systems Administrator with an active Secret clearance. This position will be located in Sterling, VA and will be a fully remote position. Responsibilities Establishes and maintains smooth operation of computer systems (to include operating systems, software and hardware) in networked or stand-alone configurations, maintains system integrity, and upgrades systems and/or servers as required. May create and document new methods supporting

Senior Wide Area Network (WAN) Administrator (Government)Job Title - Senior Wide Area Network (WAN) Administrator (Government)

AT&T Inc.Company Name - AT&T Inc.

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Bellevue, Nebraska, USA

Full-time

Job Description: This position requires office presence of a minimum of 5 days per week and is only located at customer's site. No relocation is offered. AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our cus

Mid-Level Network AdministratorJob Title - Mid-Level Network Administrator

LeidosCompany Name - Leidos

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Odenton, Maryland, USA

Full-time

The Defense group at Leidos has a career opening for a Mid-Level Network Administrator on a DISA contract. This role is primarily on the customer site at Ft Meade, MD. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS). PRIMARY RESPONSIBILITIES: Works with limited supervision to perform configuration of assets to include switches, load balancers, routers, and FirewallsPerform routine maintenance, troubleshooting, updates

Network Administrator (No Network Engineer Candidates)Job Title - Network Administrator (No Network Engineer Candidates)

CulinovoCompany Name - Culinovo

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Austin, Texas, USA

Contract

Job Title: Network Administrator (No Network Engineer Candidates) Location: Austin, TX 78701 (100% Onsite, 5 Days a Week) Position Type: Long-Term Contract (W2 Only) Eligibility: s, s, L2 Austin, Texas-based candidates only (No relocation or out-of-state candidates) No C2C or Corp-to-Corp Candidates Job Summary: We are seeking an experienced Network Administrator to join our team for a long-term onsite contract role in Austin, Texas. The ideal candidate must have a minimum of 10+ years of hand

Network AdministratorJob Title - Network Administrator

Robert HalfCompany Name - Robert Half

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New Orleans, Louisiana, USA

Full-time

Description We are looking for an experienced Network Administrator to oversee and enhance the performance, security, and reliability of our organization's IT infrastructure. This role requires a proactive individual capable of managing hardware, software, and network systems while ensuring seamless connectivity and optimal functionality across all platforms. The ideal candidate will thrive in a dynamic environment and demonstrate expertise in various technologies, including Citrix, cloud servic