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 SolarWinds NetFlow 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:Bachelors degree with 8 years of experience or a Masters 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 prepending.
  • 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 DISA circuit lifecycle actions (TSR/TSO DISA Direct/SNAP).
• Compliance:Working knowledge of DISA STIGs RMF IAVA remediation and change control under DoD configuration management processes.
• Troubleshooting:Demonstratedpacket-level analysis skill using Wireshark/tcpdump SPAN/TAP captures and NetFlow to isolate faults across provider and government segments.
• Availability:Ability to support on-call rotation scheduled maintenance windows and after-hours cutovers; occasional CONUS/OCONUS travel may berequired.

Preferred Qualifications:

• Advanced Certification:CCIE Enterprise Infrastructure or Service Provider JNCIE-SP or DoD 8570/8140 IAT Level III (CASP or CISSP).
• Segment Routing & MPLS-TE:Experience with segment routing MPLS traffic engineering or EVPN in a large-scale transport core.
• SD-WAN:Hands-on experience with Cisco SD-WANor Juniper SDWANor comparable overlay transport in aDoD/DoWdeployment.
• Automation:Proficiencywith Python Ansible for configuration deployment compliance auditing and network state validation.
• DoD Enterprise Services:Familiarity with JRSS DODIN operations and DoD boundary/CDS architectures.
• Optical Transport:Working knowledge of DWDM SONET/SDH and carrier Ethernet handoffs supporting long-haul circuits.

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The Leidos pay range for this job level is a general guideline onlyand 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.