Work Location: Remote – U.S. Based*
Program: Army Global Unified Network (AGUN)
Clearance Required: Active Secret
Certification: DoD IAT Level II (Security+ or equivalent)
*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.
What You'll Do- 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 InfoVista.
- 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 InfoVista network performance management tools.
- Experience with at least two of the following:Cisco DNA Center / PrimeJuniper NetworksPalo Alto NetworksDell NetworkingJunos SpaceAppGate
- 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 GitLab, CI/CD pipelines, Jira, and Confluence.
- Knowledge of network automation tools such as Ansible, Terraform, Puppet, Salt, and Git.
- Experience with network monitoring tools such as SNMP, NETMON, and LiveAction.
- Experience with at least two of the following: NetFlow, Elastic, Kafka, Grafana, Prometheus, or Nexus Repository.
- Experience supporting large, geographically dispersed enterprise networks.
- Familiarity with U.S. Army network security requirements and DoD network operations.
At Leidos, you'll have the opportunity to work with advanced networking technologies while supporting a mission that directly impacts the U.S. Army's global operations.
You'll collaborate with experienced network engineers, solve complex technical challenges, and help keep critical military communications secure and operational.
If you're an experienced Network Engineer with Cisco SD-WAN expertise who enjoys solving complex network challenges, we want to hear from you!
Join Leidos and help keep the Army connected. Apply today!
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:November 5, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Skills Required
- Bachelor’s degree with 8+ years of relevant experience, or master’s degree with 6+ years; additional applicable experience may substitute for a degree
- Current active Secret security clearance
- DoD IAT Level II certification, such as Security+ or equivalent, before starting
- Hands-on experience supporting Cisco SD-WAN environments
- Knowledge of Software Defined Networking
- Experience with VMware virtualization and Red Hat Enterprise Linux
- Hands-on experience with InfoVista network performance management tools
- Experience with at least two listed networking platforms, including Cisco DNA Center/Prime, Juniper Networks, Palo Alto Networks, Dell Networking, Junos Space, or AppGate
- 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
- Ability to participate in a 24/7 on-call rotation and respond to mission-critical incidents
- Strong troubleshooting, communication, and problem-solving skills
- CCNP certification or equivalent
- Linux shell scripting experience
- Experience with GitLab, CI/CD pipelines, Jira, and Confluence
- Knowledge of Ansible, Terraform, Puppet, Salt, or Git for network automation
- Experience with NETMON, LiveAction, or other network monitoring tools
- Experience with at least two of NetFlow, Elastic, Kafka, Grafana, Prometheus, or Nexus Repository
- Experience supporting large, geographically dispersed enterprise networks
- Familiarity with U.S. Army network security requirements and DoD network operations
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.
