The Role
Provides Tier 3 engineering support for a mission-critical naval enterprise network. Responsibilities include advanced troubleshooting, routing and switching architecture, firewall and VPN integration, packet analysis, outage investigation, disaster recovery testing, configuration standards, technology upgrades, capacity planning, and technical leadership of Tier 2 teams. The role supports a globally distributed, 24x7 environment and requires active Top Secret clearance with the ability to obtain TS/SCI.
Summary Generated by Built In
SAIC is looking for a Senior Network Engineer to provide Tier 3 advanced engineering support for a mission-critical naval enterprise transport network, ensuring continuous availability, resilience, and scalability. This role serves as the highest level of operational escalation, responsible for diagnosing and resolving the most complex network issues, guiding Tier 2 personnel, improving network reliability, and contributing to long-term architectural direction. The engineer supports end-to-end network visibility, advanced troubleshooting, optimization, change control, and integration of new capabilities across a globally distributed environment.
This position is onsite in Suffolk, VA.
Primary Responsibilities:
- Serve as the Tier 3 engineering escalation point, handling complex outages and deep root-cause investigations
- Perform advanced analysis of network performance, routing behavior, and security events using packet-level tools
- Lead cross-functional troubleshooting efforts with network, systems, cybersecurity, and vendor teams
- Design, validate, and enhance network architecture including routing, switching, firewalls, VPN, SD-WAN, and Spine-Leaf environments
- Provide guidance and oversight to Tier 2 teams, improving SOPs and operational efficiency
- Oversee hardware/software upgrades, major configuration changes, and technology integration
- Validate disaster recovery strategies and lead failover testing
- Develop and enforce enterprise-level configuration and security standards
- Conduct lab validation and simulation for new deployments and architectural changes
- Support long-range capacity planning and modernization initiatives
- Lead evaluation and adoption of emerging network technologies
- Improve incident, problem, and change management processes including major incident reporting
Required Education and Experience:
- Bachelor of science in Computer Science, Information Technology, or related field
- Five (5) or more years supporting large-scale enterprise or service provider network infrastructure
- Additional experience may substitute for degree
Required Security Clearance:
- Active Top Secret clearance with the ability to obtain a TS/SCI
Required Technical Skills:
- Expert-level proficiency with OSPF, BGP, route redistribution, and routing policy
- Deep understanding of Layer 2/Layer 3 enterprise network design and Spine-Leaf architecture
- Mastery of packet analysis and network visibility (Gigamon, NetScout, etc.)
- Hands-on experience with Arista switches, Palo Alto firewalls, TACACS+ on Cisco ISE, and IPSEC tunnels
- Strong troubleshooting capability for complex routing, QoS, multicast, and transport-layer issues
- Advanced understanding of TCP/IP, subnetting, and protocol behavior
- Proven ability to lead technical investigations and root-cause analysis
Required Certifications:
- IAT Level II (Security+) required
- CCNA/CCNP required; CCIE preferred
Desired Skills:
- Experience with SVLAN configuration and management
- Familiarity with Arista CloudVision Portal
- Experience in high-availability, fully redundant enterprise environments
Working Environment:
- Must be able to support a 24x7 operational environment, including escalations, major outages, maintenance windows, and upgrade events
We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.
Skills Required
- Bachelor of Science in Computer Science, Information Technology, or a related field; additional experience may substitute
- Five or more years supporting large-scale enterprise or service provider network infrastructure
- Active Top Secret security clearance with ability to obtain TS/SCI
- Expert proficiency with OSPF, BGP, route redistribution, and routing policy
- Deep understanding of Layer 2/Layer 3 enterprise network design and Spine-Leaf architecture
- Mastery of packet analysis and network visibility tools such as Gigamon and NetScout
- Hands-on experience with Arista switches, Palo Alto firewalls, TACACS+ on Cisco ISE, and IPsec tunnels
- Strong troubleshooting capability for routing, QoS, multicast, and transport-layer issues
- Advanced understanding of TCP/IP, subnetting, and protocol behavior
- Proven ability to lead technical investigations and root-cause analysis
- IAT Level II certification, including Security+
- CCNA or CCNP certification
- CCIE certification
- Experience with SVLAN configuration and management
- Familiarity with Arista CloudVision Portal
- Experience in highly available, fully redundant enterprise environments
- Availability to support a 24x7 operational environment, including escalations, outages, maintenance windows, and upgrades
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The Company
What We Do
Spectrum San Diego is a high tech security innovator, specializing in ultra-low-dose X-ray screening systems.
