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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Network Engineer - **Company:** ValidaTek, Inc. - **Location:** Arlington, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** IEEE 802.1X, Wireless LAN, Active Directory, Antivirus Softwares, Network Operating System (NOS), Client Access Licensing, Complex Networks, Cyber Security, Computer Engineering, System Configuration, Dynamic Host Configuration Protocol, Domain Name System (DNS), VMware ESX Servers, Networking Hardware, Intrusion Detection Systems, Storage Area Network (SAN), Virtual Private Networks (VPN), Network Security, Network Troubleshooting, System Center Configuration Manager, Network Architecture, Network Planning and Design, Network Monitoring, Routing, Packet Analyzer, Network Administration, Roaming, Virtualization Technology, VMware VSphere, WhatsUp Gold (Software), Wireless Access Point, Wireless Networks, Wireless Engineering, Network Routers, Identity Services Engine, Computer Network Operations, System Availability, ARUBA, Firewalls (Computer Science), Juniper, Information Technology, Performance Monitor, Enterprise Integration, Cisco Switches, Network Server, Wsus, Cisco - **Published:** October 15, 2026 - **Apply:** https://www.nettemps.com/us/en/W4D8736B4D9962A7ECF.ntap ## About the Role * Active DoD Secret clearance required at minimum, but must be able to obtain a Top Secret clearance. * 8+ years of network engineering experience, preferably within the Defense sector * Bachelor's in Science degree in Computer Engineering, computer information systems, telecommunications, or management information systems, or have 10 years of documented experience. * Juniper and Cisco expertise - highly preferred * Must have have senior knowledge of TCP/IP network design and support including; LAN, WLAN, and SDN networks, routing and sub-netting. * Provide design and implementation support for VMware ESX/VSphere Virtualization Technologies * Provide design and implementation support for Storage Area Network (SAN) ## Description We are seeking a highly skilled Senior Network Engineer to join our team. The ideal candidate will have extensive experience in implementing and maintaining complex network infrastructures. The successful candidate will be responsible for ensuring the high availability, security, and performance of the network infrastructure. This role is hybrid: Two days on-site, three days remote., * Network and Wireless Engineering: Configure, maintain, and optimize enterprise wired and wireless network infrastructure, including Cisco Catalyst, Cisco Meraki, Aruba, switches, routers, controllers, firewalls, and access points. * Network Security and Access Control: Configure and support secure network access using Cisco ISE and Aruba ClearPass, including 802.1X authentication, guest access, bring your own device, device profiling, segmentation, and role based access policies. * Operations, Automation, and Lifecycle Support: Use network management platforms such as Cisco Catalyst Center and Aruba Central to manage configurations, monitor performance and compliance, support upgrades, maintain documentation, and assist with infrastructure refresh and capacity planning. * Troubleshooting and Technical Support: Serve as a senior escalation resource for complex wired and wireless network issues. Perform packet capture analysis, RF troubleshooting, site surveys, and root cause analysis to resolve connectivity, performance, routing, switching, roaming, and client access issues. * Design and implement complex network infrastructures that are scalable and meet the needs of the organization * Plan, configure and troubleshoot routers, switches, firewalls, and other network devices * Manage and maintain network infrastructure security, including firewalls, VPNs, and intrusion detection systems * Monitor network performance, identify and troubleshoot network issues, and implement corrective measures * Develop and maintain network documentation, diagrams, and policies * Collaborate with cross-functional teams to ensure effective network integration with other IT systems and applications * Stay current with emerging networking technologies and provide recommendations for the adoption of new technologies that can improve network performance and security. * Serve as the knowledge expert for experience installing, configuring, and administering CISCO, Stratix, Juniper and/or Aruba devices to include but not limited to: Routers, Switches, and/or Firewalls., * Perform network monitoring of the network to include all assets. * Perform independent verification, validation, and project management for current and future projects. * Provide technical support, advice and troubleshooting for utility network operations with a 98% target network uptime. * Produce documentation for use in configuration, repair and troubleshooting of hardware, software and network operating systems. * Develop and document processes and procedures for the day to day operations. * Implement systems as needed based on network application requirements. * Knowledge of managing Active Directory, DHCP, DNS, WSUS, SCCM, and WhatsUp Gold. * Provide support for VMware ESX/VSphere Virtualization Technologies (ESX 6.5 or greater, Virtual Center, P2V Tools) design/management/implementation * Experience in task automation using scripting * Maintain virus definitions, patch versions and Department of Defense (DoD) Security Technical Implementation Guides (STIG) levels on all network Servers and workstations. * Utilize the DoD Assured Compliance Assessment Solution (ACAS) to update, manage and track implementation of information security requirements for the IT assets and resources. * Support as needed DoD Information Assurance Risk Management Framework (DIARMF).