Senior Network Support Engineer_Remote

Work Location:

Remote – U.S. Based
* Program:
Army Global Unified Network (AGUN)

Clearance Required:

Active Secret Certification:
DoD IAT Level II (Security+ or equivalent) Help Keep the U.S. Army Connected Worldwide!
* Please be advised that during the interview, yo will be required to keep your camera on, and your interviewer will be taking your picture for identification purposes, if an offer letter is extended to you.

Leidos is seeking an experienced Senior Network Support Engineer to support the Army Global Unified Network (AGUN) program. This is an exciting opportunity to help maintain, secure, and modernize the Army's global enterprise network, ensuring reliable communications and mission readiness around the world. In this role, you'll provide hands‑on network operations, troubleshooting, and engineering support across a complex, geographically dispersed environment.

You'll work with advanced networking technologies, resolve critical incidents, support network migrations, and help improve network performance and security. We're looking for a strong Network Engineer with hands‑on Cisco SD-WAN experience who can troubleshoot complex network issues and work independently in a remote environment.

• Support the Army's global network operations, ensuring 24/7/365 network availability, performance, and security.
• Troubleshoot and resolve complex network incidents, outages, and connectivity issues.
• Configure, maintain, and support Cisco SD-WAN and enterprise networking technologies.
• Execute approved network configuration changes, security updates, and remediation activities.
• Manage incident and service request tickets using Jira Service Desk or other ITSM tools.
• Monitor network performance, capacity, and reliability and recommend improvements.
• Support network migrations, system integrations, cutovers, and modernization initiatives.
• Work remotely while collaborating with geographically dispersed engineering teams during incident-response bridges, meetings, and troubleshooting activities.
• Provide timely operational updates to the Global Cyber Center (GCC) and program leadership.
• Support network environments utilizing VMware, Red Hat Enterprise Linux, and Info Vista.
• Participate in a 24/7 on‑call rotation, including nights, weekends, holidays, and mission‑driven surge support.

• Bachelor's degree with 8+ years of relevant experience, or a master's degree with 6+ years of relevant experience. Additional applicable experience may be considered in place of a degree.
• Current Active Secret security clearance.
• DoD IAT Level II certification (Security+ or equivalent) required before starting.
• Hands‑on experience supporting Cisco SD-WAN environments.
• Knowledge of Software Defined Networking (SDN).
• Experience with VMware virtualization and Red Hat Enterprise Linux (RHEL).
• Hands‑on experience with Info Vista network performance management tools.
• Experience with at least two of the following:
  
  Cisco DNA Center / Prime Juniper Networks Palo Alto Networks Dell Networking Junos Space App Gate .
• Strong understanding of LAN/WAN, BGP, TCP/UDP, IPSec, VPNs, Layer 2/Layer 3 routing, and firewalls.
• Familiarity with SFTP, SSH, SCP, SNMP, and NTP.
• Experience using ITSM ticketing tools for incident and service request management.
• Strong troubleshooting, communication, and problem‑solving skills.
• Ability to work independently while collaborating with remote technical teams.
• Flexibility to participate in a 24/7 on‑call rotation and respond to mission‑critical incidents.

• CCNP certification or equivalent.
• Experience with Linux shell scripting.
• Experience using Git Lab, CI/CD pipelines, Jira, and Confluence.
• Knowledge of network automation tools such as Ansible, Terraform, Puppet, Salt, and…