Network Engineer Tier 3

Zachary Piper Solutions is seeking a Network Engineer Tier 3 to support a leading provider of information technology products and services for U.S. Government agencies. The Network Engineer Tier 3 will be responsible for implementing, delivering, and monitoring technical support for customer environments; managing and maintaining inventories of client systems; and providing support for operating systems, desktop peripherals, software, core applications, and computer imaging. This position will be on-site in Washington, DC.

Responsibilities of the Network Engineer Tier 3 include:

• Install, configure, and maintain LAN/WAN infrastructure, including routers, switches, VPNs, load balancers, and security devices.
• Apply security patches and enforce protocols across network devices and systems.
• Monitor and optimize network performance using management tools; troubleshoot and resolve issues promptly.
• Maintain accurate inventory of network assets and manage lifecycle tracking.
• Provide design input and technical support during engineering meetings and network projects.
• Manage data center network infrastructure and assist with storage, virtualization, and infrastructure improvements.
• Stay current on emerging technologies, trends, and best practices in networking and security.
• Troubleshoot outages affecting voice, video, and data services; schedule upgrades and optimizations.
• Demonstrate expertise in routing, switching, firewall configuration, and secure LAN/WAN support.
• Support Linux/Unix and Windows systems, ensuring integration with network services.
• Prepare detailed reports on network performance, incidents, and upgrades.
• Act as primary client contact for hardware/software inquiries and issue resolution.
• Collaborate with cross-functional teams on complex technical issues and disaster recovery planning.
• Lead or assist in network/system projects, ensuring timely completion and adherence to objectives.
• Perform additional tasks as assigned to support team and organizational goals.

Qualifications for the Network Engineer Tier 3 include:

• Strong customer service skills with the ability to understand and interpret client requirements.
• Hands-on experience configuring Cisco routers and switches (IOS/NX-OS), Palo Alto NextGen Firewalls, VPNs, and working with General Dynamics Taclanes and/or GEMOne.
• Knowledge of F5 Load Balancers, including GTM and Big DNS.
• Technical proficiency with Windows and Unix/Linux operating systems, network security, traffic analysis, incident response, vulnerability assessment, packet analysis, and system hardening.
• Solid understanding of Layer 2 switching, Layer 3 routing protocols, and encryption/communication protocols such as TLS/SSL, IPsec, SSH, BGP, VLAN, LLDP, LACP, ARP, 802.1x, DNS, AES, NTP.
• Experience in network design, implementation, troubleshooting, and performance tuning.
• Ability to manage multiple projects and meet deadlines effectively.
• Must hold or be able to obtain DOE Q Clearance OR Top Secret Clearance.

Compensation for the Network Engineer Tier 3 include:

• Salary Range: $150,000 – $170,000
• Comprehensive Benefits:
  • Medical/Dental/Vision Coverage
  • Additional UnitedHealthcare Resources
  • Employee Discount Program through BenefitHub

This job opens for applications on [12.29.25]. Applications for this job will be accepted for at least 30 days from the posting date.



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Keywords:

Network Engineer, DOE Q Clearance, Top Secret Clearance, LAN/WAN infrastructure, Cisco routers, Cisco switches, IOS, NX-OS, Palo Alto NextGen Firewall, VPN configuration, General Dynamics Taclanes, GEMOne, F5 Load Balancer, GTM, Big DNS, network security, network traffic analysis, incident response, vulnerability assessment, packet analysis, system hardening, Windows, Unix/Linux, network design, network implementation, network troubleshooting, network performance tuning, routing protocols, switching protocols, Layer 2, Layer 3, TLS/SSL, IPsec, SSH, BGP, VLAN, LLDP, LACP, ARP, 802.1x, DNS, AES, NTP, secure LAN/WAN support, data center infrastructure, virtualization, disaster recovery planning, CI/CD integration, emerging technologies, network optimization, federal government IT support, Washington DC onsite.