← All roles

Senior Network Engineer (CBP)

Agile Defense· Digital Transformation – Network Operations
Apply on company site
Hybrid (Ashburn, VA)$120k - $140kRegularPosted 2mo ago

About the role

Senior Network Engineer responsible for engineering, maintaining, configuring, and troubleshooting enterprise WAN/LAN, SD-WAN, VPNs, WLAN, and perimeter security in a DHS-focused environment, with on-call duties and travel up to 35%.

Responsibilities

  • Configure, deploy, and support enterprise-grade switches, routers, firewalls, VPN gateways, adhere to logging baselines and load balancers across DHS operational environments.
  • Troubleshoot and provide Tier 2/3 escalation support for network outages, circuit degradations, and performance issues; conduct root cause analyses and coordinate vendor support.
  • Plan, install, and cutover network hardware upgrades, SD-WAN transitions, cloud interconnects (AWS/Azure/GCP), remote field sites and infrastructure modernization.
  • Design, implement, and maintain an SD-WAN solution that supports multiple transports (DIA, Broadband, MPLS, 4G/LTE/5G, satellite) and routes traffic based on application type and performance requirements.
  • Maintain network documentation (Visio diagrams, topology maps, SOPs, change tickets in ServiceNow/Remedy).
  • Support 24/7/365 on-call rotation, respond to Tier 3 incidents, and execute Emergency Change Requests (ECR) or Break/Fix changes as needed.
  • Participate in RCA or post-incident analysis for mission-critical applications and infrastructure.
  • Collaborate with program/project managers to align network deliverables with enterprise objectives.
  • Travel within the United States up to 35% of the time.

Qualifications

  • Bachelor’s degree in MIS, Computer Science, Engineering, or related technical field (e.g. Networking and Telecommunications) with 10+ years of network engineering experience or 14+ years without a bachelor’s degree.
  • Minimum of ten (10) years of verifiable network engineering experience supporting a large, complex Federal agency.
  • Strong knowledge of TCP/IP, BGP, OSPF, EIGRP, MPLS, VPNs and VLANs.
  • Expertise with Cisco technology and firewall technologies; ability to perform firewall changes.
  • Hands-on experience with SDN technologies such as Cisco ACI or VMware NSX.
  • Excellent problem-solving and analytical skills for troubleshooting complex network issues.
  • Delivers high-level technical leadership to meet project goals.

Skills

Required:Network Engineering & MaintenanceTroubleshooting & Incident ManagementArchitecture & UpgradesSD-WANDocumentation & Asset Management
Last updated Oct 21, 2026. Interested? Apply on the company site.

About Agile Defense

Always Evolving

Agile Defense delivers advanced capabilities and solutions tailored to the most critical national security and civilian missions.

national securitycivilian missionsinnovationcapabilitiessolutions
Company profileWebsite

More open roles at Agile Defense