Network security administrator jobs

Herndon, Virginia

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Today

Altus Consulting is seeking a highly motivated Network Administrator to join our team. You will be responsible for the design, implementation, and maintenance of our network infrastructure, ensuring its reliability, security, and performance. Responsibilities: Design, configure, and maintain network devices (routers, switches, firewalls).Monitor network performance and troubleshoot network issues.Implement and maintain network security measures.Manage user access and permissions.Document networ

Full-time

Network Administrator

Laconia, New Hampshire

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Today

Description We're looking for a hands-on Network Administrator / Engineer to keep our infrastructure running fast, secure, and drama-free. If you're the person who actually enjoys digging into routing issues, tightening security, and making networks more resilient than they were yesterday-this is your lane. You'll play a key role in supporting and evolving a modern environment spanning on-prem, wireless, and cloud-connected systems. What You'll Be Doing Design, manage, and optimize enterprise n

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Full-time

USD 100,000.00 - 120,000.00 per year

Network Administrator

No location provided

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Today

Overview Client First Technologies is seeking a Network Administrator with experience supporting enterprise network infrastructures in secure computing environments. The successful candidate will ensure network services, connectivity, and supporting infrastructure remain secure, functional, and highly available. You will be responsible for monitoring network performance, troubleshooting connectivity issues, managing network devices, and supporting training and operational systems. This is a ful

Full-time

Network Administrator

Richmond, Virginia

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10d ago

Role Overview We are seeking a Network Administrator to support enterprise network infrastructure for the Transportation Operations Center. The ideal candidate will have strong hands-on experience with Cisco networking technologies, LAN/WAN administration, routing and switching, network security, and infrastructure support. This role involves configuring, monitoring, troubleshooting, and maintaining enterprise network environments while collaborating with cross-functional teams to deliver secure

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Contract

55 - 60

Network Administrator

New Hampshire

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Today

Network Administrator Department: IT (NH) Employment Type: Full Time Location: Charlestown, NH Description As a Network Administrator at Whelen Engineering, you are responsible for maintaining, securing, and optimizing the organization's network infrastructure. This includes configuring and managing VLANs, switches, firewalls, and WAN/LAN routing, as well as supporting wireless infrastructure and virtualization systems. Working with moderate guidance, you will apply technical expertise to e

Full-time

Sr Systems Security Engineer / Sr. Core Applications Administrator

Lone Tree, Colorado

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Today

The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation systems. Its end-to-end Command, Control, Computers, Communications and Intelligence, Surveillance & Reconnaissance (C4ISR) capabilities encompass design, integration, test, certification, ground/flight training and complete logistics support. IAS t

Full-time

USD 143,487.14 - 197,294.82 per year

Network System Administrator

Fort Meade, Maryland

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Today

Que Technology Group, Inc., is seeking an experienced Network System Administrator to join a small team supporting a mission-critical enclave network with both physical and virtual network devices. This position is responsible for maintaining secure, reliable, and compliant IT operations across the enterprise environment. Job responsibilities include, but are not limited to: Create and modify user accounts and access controls Troubleshoot network infrastructure and client-server environments In

Full-time

Network Administrator

Quantico, Virginia

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Today

Company Overview: At ValidaTek, we modernize and optimize IT services to solve some of the most critical challenges facing federal civilian and defense agencies. From customers to partners to top-talent employees, ValidaTek puts people first, empowering them to exceed expectations and transform government organizations. Our employees are building purpose-driven careers, not just filling jobs. We bring together people with many different perspectives, experiences, and talents to drive innovation

Full-time

Senior Network Systems Administrator

Dahlgren, Virginia

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Today

Overview Job specifications are intended to present a descriptive list of the range of duties performed by employees. Specifications are not intended to reflect all duties performed within the job. SUMMARY: The Senior Network Administrator shall demonstrate experience in facility operations, network administration, data management, information security and/or information management. This experience shall include work with various network protocols, test equipment, diagnostics, Visio and AutoC

Full-time

USD 45.00 - 50.00 per hour

Senior Network Administrator

Ogden, Utah

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Today

Senior Network Administrator Hill Air Force Base Ogden, Utah HX5 is an award-winning provider of engineering, research and development, and technical services to clients such as NASA and the Department of Defense. Founded in 2004, HX5 is a fast-growing veteran- and woman-owned company with locations nationwide. HX5 is currently seeking a qualified Senior Network Administrator in support of the Training Division (AFLCMC/WNR) at Hill Air Force Base, Utah. Essential Duties and Responsibilities: Adm

Full-time

Senior Network Administrator

Dahlgren, Virginia

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Today

Full-time

USD 52.00 per hour

Senior Network Administrator

La Plata, New Mexico

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8d ago

Full-time

USD 52.00 per hour

Network Administrator

Hampton, Virginia

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Today

The Defense Sector at Leidos is seeking a motivated TS/SCI cleared Network Administrator to support the installation, configuration, and day-to-day management of enterprise network infrastructure. This role is an excellent opportunity for an early-career network professional to gain hands-on experience with routing and switching platforms, including Session Smart Router (SSR) / 128 Technology SD-WAN solutions, in a structured and security-conscious environment. The ideal candidate demonstrates a

Full-time

USD 73,450.00 - 132,775.00 per year

Senior Network Administrator

El Segundo, California

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Today

CHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage-domain dominance. The company's products are powered by Coherent Distributed Networks (CDN ), empowering warfighters, commercial air operators, and border protection teams to act faster, adapt rapidly, and stay ahead of evolving threats. CHAOS Industries was founded in 2022 and has raised a total of $1 billion in funding from leading investors, including 8VC, Accel, and Valor Equity Par

Full-time

USD 130,000.00 - 190,000.00 per year

Network Administrator

Hybrid in Richmond, Virginia

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10d ago

Network AdministratorClient: VDOT Req #: 807536 Location: Fairfax, VA (Hybrid) Employment Type: Contract Job OverviewVDOT is seeking a mid-level Network Administrator with at least 5 years of hands-on networking experience to support the Transportation Operations Center. This role involves maintaining enterprise network infrastructure, troubleshooting complex networking issues, implementing Cisco-based solutions, and supporting cybersecurity initiatives. Candidates should possess strong technica

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Third Party, Contract

70 - 80

Network Security engineer (Remote - Must be local to CO)

Remote

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3d ago

Client: State of CO/CO OIT Job ID: 66185 Job Title: Network Security Administrator Location: 1575 Sherman St., Denver Denver, Colorado 80203 Estimated Duration: 09/01/2026 - 06/30/2027 Remote Description 1. Objective The objective of this engagement is to provide specialized network and cyber Security administration support to ensure state agencies maintain secure, compliant, and modern network infrastructures. This role focuses on the mitigation of operational challenges, hardware life

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Contract, Third Party

Depends on Experience

Network Administrator

Fort Meade, Maryland

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Today

OVERVIEW VAE, Inc. is a full service IT Infrastructure Solutions Company focused on building, securing and supporting our clients' mission critical enterprises. We provide a distinctive array of design, integration and implementation services as well as fully managed service offerings. VAE is at the forefront of leveraging multi-tenant capable technologies and shared IT services to create secure, reliable and cost-effective end-to-end services and solutions. We deliver exceptional infrastructur

Full-time

USD 100,000.00 - 175,000.00 per year

Network Administrator

Colorado Springs, Colorado

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Today

Job ID: 2614953 Location: Colorado Springs, CO, US Date Posted: 2026-07-27 Category: Information Technology Subcategory: Network Engineer Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: TS.SCI Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_ON_SITE Description SAIC is seeking a Journeyman Network Administrator in Colorado Springs, CO who will provide network infrastructure expertise to the organization, focusing h

Full-time

USD 80,001.00 - 120,000.00 per year

Network Security Architect

Brentwood, Tennessee

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Today

Job Description EEOC Statement "Lifepoint Health is an Equal Opportunity Employer. Lifepoint Health is committed to Equal Employment Opportunity for all applicants and employees and complies with all applicable laws prohibiting discrimination and harassment in employment." You must be authorized to work in the United States without employer sponsorship. This Position is: Hybrid (Brentwood, TN) Travel Requirements: Travel up to 25% (To facilities) Job Summary The Network Security Architect

Full-time

Network Administrator

Panama City, Florida

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Today

NETWORK ADMINISTRATOR Concurrent Technologies Corporation Panama City, FL Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: TS/SCI Concurrent Technologies Corporation (CTC) is committed to staying at the forefront of emerging technologies to help federal agencies address complex mission requirements. As part of our Digital Mission Solutions team supporting the General Services Administration (GSA), this role contributes to the design, operation, and security of enterpri

Full-time