Leidos · 6 hours ago
SRE Senior Network Engineer
Jacksonville, FL
Full-time
Onsite
Mid, Senior Level
$108K/yr - $195K/yr
6+ years expLeidos is seeking a SRE Senior Network Engineer to join their SRE Transport domain to support the Service Management, Integration, and Transport Contract for the Navy-Marine Corps Intranet. This position involves advanced support and maintenance of enterprise network infrastructure to ensure secure network operations and continuous threat protection.
ComputerGovernmentInformation ServicesInformation TechnologyNational SecuritySoftware
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Lead efforts to identify, troubleshoot, and resolve complex network issues in a dynamic environment
Configure and maintain Switches, Routers, Firewalls, VPNs, DMZs, Load Balancers, VLANs, Wireless APs, and IPS to ensure robust network security
Provide expertise and support for the largest Intranet in the world
Collaborate with cross-functional teams to enhance network operations
Develop and maintain Engineering Implementation Plans (EIP)
Serve as Tier III escalation support, including vendor engagement for incident management
Apply extensive knowledge of defense-in-depth principles to secure network infrastructure
Track all work in the agile framework using JIRA, attend DSUs, Retrospectives, and provide detailed demos for our PIs
Conduct Root Cause Analysis for problem management activities
Participate in engineering and project meetings to design future enterprise solutions
Create change management tickets for deployments, maintenance etc
Qualification
Required
Education: B.S. Degree with 8–12 years of relevant experience, or a Master's Degree with 6–10 years of relevant experience (substitutions at Hiring Manager's discretion)
Experience with the agile framework SAFe and JIRA
Clearance: Active DoD Secret clearance, Top Secret eligible
DoD 8570.01 IAT Level III Certification (e.g., CASP, CISSP, CCNP Security)
A Network Vendor Certification (e.g., Cisco, Juniper, Aruba, F5, Palo Alto, McAfee, Trellix, Forcepoint, Brocade, Gigamon, Arista, Aruba)
Subject Matter Expertise in Network BAN/LAN/CAN/WAN/WLAN and Network Boundary engineering
Proficiency in performing highly technical network maintenance and configurations
Familiarity in providing Tier III escalation support for a 16,000+ device network across 450+ geographically dispersed locations
Experience being the SME and backstop for troubleshooting efforts across multiple network disciplines from other sections of CCNP/CCIE level network engineers
Extensive experience troubleshooting networks, including routing, switching, SD-WAN, WLAN, MPLS, VPNs, OSPF, BGP, EIGRP, switching protocols, and multicast
Strong written and oral communication skills and problem-solving abilities
Willingness to rotate on-call and work during off-hours to meet program requirements
Ability to travel up to 10%
Preferred
Previous experience supporting the NMCI network
Prior work experience with DoD programs
Network Automation (IaC, Ansible, Python, etc.)
Arista experience
Benefits
Health and Wellness programs
Income Protection
Paid Leave
Retirement
Company
Leidos
Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health.
10001+ employees
Funding
Current Stage
Public CompanyTotal Funding
unknown2025-02-20Post Ipo Debt
2013-09-17IPO
Leadership Team
James Carlini
Chief Technology Officer
Theodore Tanner
Chief Technology Officer
Recent News
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2025-12-16
2025-12-16
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