Tier-3 Network Engineer - DC Onsite, TS/DOE Clearance

Zachary Piper, LLC; Washington (District of Columbia); On-site; USD 158,000 - 193,000; Full time

Benefits offered by this job

Medical, Dental, Vision

401(k)

Paid Holidays

Job summary

Zachary Piper Solutions seeks a Network Engineer Tier 3 to support a DOE/NNSA program in Washington, DC onsite. You will deliver advanced network engineering, administration, and troubleshooting for secure enterprise environments, ensuring performance, reliability, and security of critical infrastructure.

Role requires DoE Q or Top Secret clearance, 7+ years of experience, and hands-on expertise with Cisco, Palo Alto, F5, and related technologies.

Qualifications

• Active DOE Q Clearance or Active Top Secret Clearance required.
• 7+ years of network engineering experience supporting enterprise or government environments.
• Hands-on experience with Cisco routing and switching (IOS/NX-OS), Palo Alto Next-Generation Firewalls, VPN technologies, and F5 Load Balancers (GTM/Big-IP DNS).
• Experience with General Dynamics TACLANE devices and/or GEMOne network management solutions.
• Strong knowledge of Layer 2/Layer 3 networking, BGP, VLANs, DNS, IPsec, TLS/SSL, SSH, 802.1x, LACP, LLDP, NTP, and encryption technologies.
• Experience supporting Windows and Linux/Unix operating systems, network security, packet analysis, vulnerability management, systems hardening, and incident response.
• Proven experience with network design, implementation, troubleshooting, and performance optimization.
• Must be eligible to work in the United States and obtain and maintain required government security clearances.

Responsibilities

• Install, configure, maintain, and optimize LAN/WAN infrastructure including Cisco routers, switches, Palo Alto firewalls, VPNs, F5 load balancers, and security appliances.
• Monitor, troubleshoot, and resolve complex network performance, routing, switching, voice, video, and data service issues.
• Support data center network infrastructure, virtualization environments, infrastructure upgrades, and expansion projects.
• Implement network security controls, apply security patches, and support disaster recovery and continuity initiatives.
• Provide technical recommendations, maintain network asset inventories, generate reports, and collaborate with cross-functional engineering teams.

Skills

7+ years experience

Cisco IOS/NX-OS

Palo Alto NGFW

F5 Load Balancers

GTM/Big-IP DNS

TACLANE/GEMOne

Network security & incident response

Tools

Cisco routers/switches IOS/NX-OS

Palo Alto Firewall

F5 BIG-IP

GTM/Big-IP DNS

TACLANE

GEMOne

Job description

Zachary Piper Solutions seeks a Network Engineer Tier 3 to support a DOE/NNSA program in Washington, DC onsite. You will deliver advanced network engineering, administration, and troubleshooting for secure enterprise environments, ensuring performance, reliability, and security of critical infrastructure.

Role requires DoE Q or Top Secret clearance, 7+ years of experience, and hands-on expertise with Cisco, Palo Alto, F5, and related technologies.