Senior Wide Area Network; WAN) Engineer
The Defense sector at Leidos is seeking a cleared Senior Wide Area Network (WAN) Engineer to engineer, operate, and sustain long-haul transport and routing infrastructure across Department of Defense (DoD/DoW) networks. This individual serves as a Subject Matter Expert on routing for the enterprise WAN — assisting the Network Architect with Border Gateway Protocol (BGP) design, peering, and policy across NIPRNet, SIPRNet, and DISN service delivery points — and is accountable for the availability, performance, and STIG compliance of circuits supporting operational mission traffic worldwide.
Roles and Responsibilities- Design, implement, and maintain BGP routing architecture across the enterprise WAN, including peering relationships, autonomous system boundaries, and route policy enforcement.
- Serve as the escalation authority for complex WAN faults — route flapping, asymmetric paths, MTU and fragmentation issues, black-holed prefixes, and provider circuit degradation.
- Engineer and execute circuit installations, migrations, bandwidth upgrades, and site cutovers with documented rollback plans and minimal mission impact.
- Develop andmaintainrouting policy standards, IP address and ASN allocation plans, and authoritative network documentation including logical and physical topology diagrams.
- Configure and sustain QoS, traffic engineering, and pathselectionto prioritize command and control, VTC, and VoIP traffic across constrained transport.
- Apply DISA STIGs to routing and transport devices, remediate IAVA findings, and support RMF assessment and authorization artifacts and POA&M closure.
- Coordinate with DISA, NOC/SOC teams, transport providers, and site network personnel to schedule andvalidatemaintenance actions and outage restoration.
- Monitor WAN health and capacity using Solar Winds, Net Flow, and SNMP-based tooling; produce trend analysis and capacity recommendations for government leadership.
- Manage Type 1 encryptor configuration and key management coordination in support of secure enclave connectivity.
- Mentor junior network administrators, review proposed configuration changes, and represent WAN engineering positions at CCB and technical review boards.
Required Qualifications:
Clearance: US Citizen with at least a Top Secret clearance and the ability to obtain a SCI prior to your start date.
Education: Bachelor’s degree with 8+ years of experience or a Master’s degree with 6+ years of experience. Additional experience may be considered in lieu of a degree.
Experience: 8+ years of hands‑on enterprise WAN engineering and operations experience, withdemonstratedownership of multi‑site routed transport in a DoD environment.
Certifications: DoD 8570/8140 IAT Level II certification (Security+ CE or equivalent) plus an active CCNP Enterprise, JNCIP‑SP, or equivalent routing certification.
BGP Expertise:
- Expert‑level configuration and troubleshooting of eBGP and iBGP, including route reflectors, confederations, and full‑mesh peering designs.
- Proven ability to author and tune BGP routing policy using route maps, prefix lists, AS‑path filters, communities, local preference, MED, and AS‑path prep ending.
- Experienceestablishingand sustaining BGP peering with DISA/DISN service delivery nodes and commercial transport providers.
- Working knowledge of BGP convergence tuning, dampening, BFD, and route leak/hijack mitigation.
Routing & Transport: Strongproficiencywith OSPF, EIGRP, MPLS L2/L3 VPNs, VRFs, QoS policy for voice and mission traffic, and IPv4/IPv6 dual‑stack operations.
Platforms: Hands‑on administration of Cisco (IOS‑XE/IOS‑XR/NX‑OS) and Juniper (Junos) routing platforms in an operational production network.
Encryption & Circuits: Experience with Type 1 inline network encryptors (TACLANE/KG‑175, HAIPE) and with…
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