Senior L4 Network Engineer / Architect

Kforce has a client that is looking for a Senior L4 Network Engineer/Architect in Los Angeles, CA. Overview: The client is seeking a Senior L4 Network Engineer/Architect with expertise in Cisco SD-WAN, enterprise WAN design, MPLS routing, and WAN/LAN integration. This position will lead the design, deployment, integration, and support of SD-WAN solutions across MPLS, Internet, broadband, LTE/5G, and hybrid network environments. The ideal candidate is a senior technical leader who can define SD-WAN strategy, optimize routing and segmentation, improve resiliency and application performance, and guide engineering teams through implementation, migration, and operational support activities. Key Responsibilities

• Design and define Cisco SD-WAN solutions for enterprise and mission-critical environments
• Develop SD-WAN architectures supporting MPLS, Internet, broadband, LTE/5G, private-line, and hybrid WAN transport models
• Configure and support Cisco SD-WAN platforms including vManage, vBond, vSmart, and WAN Edge routers
• Create and maintain policies for application-aware routing, traffic steering, segmentation, SLA-based path selection, failover, and resiliency
• Lead SD-WAN migrations from legacy WAN architectures
• Design and support WAN environments utilizing MPLS, carrier Ethernet, Internet, broadband, and private fiber services
• Provide expertise in BGP, OSPF, IS-IS, EIGRP, route redistribution, filtering, and policy-based routing
• Define WAN-to-LAN integration, including firewall connectivity, segmentation, VLANs, VRFs, and routed handoffs
• Support fiber-based WAN services, carrier handoffs, optics, demarcation points, and physical connectivity validation
• Design highly available WAN architectures incorporating redundant circuits, carriers, SD-WAN edge devices, and transport diversity
• Serve as the senior escalation point for complex routing, SD-WAN, MPLS, and connectivity issues
• 10+ years of enterprise or service provider networking experience with significant WAN and routing responsibilities
• Strong hands-on experience designing, deploying, and troubleshooting Cisco SD-WAN solutions
• Expertise with Cisco SD-WAN architecture, including overlay/underlay design, vManage, vBond, vSmart, templates, policies, and centralized management
• Experience deploying SD-WAN across MPLS, Internet, broadband, LTE/5G, and hybrid WAN environments
• Advanced routing knowledge including BGP, OSPF, IS-IS, EIGRP, route redistribution, route maps, filtering, prefix lists, and policy-based routing
• Knowledge of MPLS services including L3VPN, L2VPN, VRFs, PE/CE routing, QoS, and carrier handoff models
• Experience with Cisco Catalyst 8000/8500, ISR, ASR, or equivalent WAN edge platforms
• Understanding of WAN circuit delivery, carrier handoffs, fiber optics, routers, switches, firewalls, and LAN aggregation infrastructure
• Ability to troubleshoot across physical, transport, routing, SD-WAN, application, and security layers
• Experience leading migrations, WAN transformations, circuit turn-ups, maintenance windows, and production cutovers
• Strong documentation and communication skills

• CCIE Enterprise Infrastructure, CCIE Service Provider, CCNP Enterprise, or equivalent certification
• Advanced experience with Cisco SD-WAN templates, centralized policies, segmentation, and large-scale deployments
• Experience integrating SD-WAN with firewalls, SASE, cloud platforms, data centers, and campus networks
• Knowledge of fiber technologies, carrier Ethernet, DWDM, dark fiber, OTDR testing, and route diversity
• Experience with monitoring platforms such as ThousandEyes, SolarWinds, LogicMonitor, or NetFlow tools
• Familiarity with automation technologies including Ansible, Python, REST APIs, Git, and Infrastructure as Code