Senior Network Support Engineer_Remote

Leidos; United States; Remote; USD 92,000 - 167,000; Full time

Job summary

Leidos is seeking a Senior Network Support Engineer to support the Army Global Unified Network (AGUN) program. This remote, U.S.-based role requires active Secret clearance and DoD IAT Level II certification, with hands-on Cisco SD-WAN experience and VMware/RHEL expertise.

You will handle on-call incident response, network optimization, migrations, and cross-team collaboration within a global, secure environment to ensure reliable, mission-ready communications.

Qualifications

• Active Secret clearance required for consideration.
• DoD IAT Level II certification required before starting.
• Hands-on Cisco SD-WAN experience with enterprise networks.
• Knowledge of Software Defined Networking (SDN) concepts.
• VMware virtualization and Red Hat Enterprise Linux (RHEL) experience.
• Experience with InfoVista network performance tools.
• Experience with ITSM ticketing systems for incident mgmt.
• Ability to work independently with remote teams.

Responsibilities

• Ensure 24/7/365 network availability, performance, and security.
• Troubleshoot complex network incidents and outages.
• Configure and support Cisco SD-WAN and enterprise networks.
• Implement approved configuration changes and security updates.
• Manage tickets using Jira Service Desk or ITSM tools.
• Monitor performance and recommend improvements.
• Support network migrations, system integrations, and cutovers.
• Collaborate with remote engineers during incident response.

Skills

Active Secret clearance

DoD IAT Level II

Cisco SD-WAN

SDN knowledge

VMware virtualization

RHEL knowledge

InfoVista tools

ITSM familiarity

LAN/WAN, BGP basics

Education

Bachelor's degree + 8+ years experience

Master's degree + 6+ years

Job description

Work Location:

Remote - U.S. Based*

Program:

Army Global Unified Network (AGUN)

Clearance Required:

Active Secret

Certification:

DoD IAT Level II (Security+ or equivalent)

Leidos is seeking an experienced Senior Network Support Engineer to support the Army Global Unified Network (AGUN) program.

Please be advised that during the interview, you 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.

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.

What We’re Looking For

• 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.

Preferred Qualifications

• 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.

Why Join Leidos?

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.

Original Posting

November 5, 2026

For 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.

Pay Range

Pay Range $92,300.00 - $166,850.00

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.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision.

Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave
• Retirement

More details are available at www.leidos.com/careers/pay-benefits.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.