WAN LAN Engineer SME

This program provides enterprise architecture, systems engineering, technology modernization, project management, and systems integration support for a large-scale, complex enterprise technology environment. The program is responsible for planning, designing, implementing, integrating, securing, and continuously improving enterprise technology capabilities that support mission operations, business objectives, and long-term modernization goals.

The effort spans enterprise infrastructure, network services, cloud platforms, data centers, end-user computing, cybersecurity, applications, and shared services. Support includes current-state assessments, future-state architecture development, modernization roadmaps, technology evaluations, engineering analysis, requirements management, governance, and solution implementation oversight. The program enables the adoption of emerging technologies while ensuring interoperability, security, performance, resiliency, scalability, and operational sustainability across the enterprise.

Services include enterprise and solution architecture, systems engineering, technology lifecycle management, cloud and infrastructure modernization, network transformation, platform integration, architecture governance, investment planning, risk management, requirements traceability, performance measurement, and operational readiness activities. The program supports the successful delivery and continuous improvement of mission-critical systems and enterprise technology services through disciplined engineering, governance, and modernization practices.

The WAN/LAN SME is responsible for the engineering, modernization, scalability, performance, and operational sustainability of enterprise network services spanning wide area networks (WAN), local area networks (LAN), cloud connectivity, data centers, remote sites, and hybrid environments. The role serves as the senior technical authority for network transport, routing, switching, network services, and connectivity architecture, ensuring secure, resilient, and high-performing communications across the enterprise.

The WAN/LAN SME designs and implements network solutions that support organizational growth, cloud adoption, remote locations, content delivery requirements, and evolving mission demands. The individual works closely with cloud, security, infrastructure, application, and operations teams to develop network strategies, evaluate technologies, troubleshoot complex issues, optimize network performance, and guide the implementation of enterprise networking standards based on Cisco technologies and industry best practices.

• Design, engineer, and optimize enterprise WAN, LAN, campus, branch, remote-site, cloud, and hybrid network environments.
• Lead WAN modernization initiatives, including bandwidth expansion, circuit optimization, carrier integration, SD-WAN adoption, and network performance improvements.
• Design and maintain enterprise routing architectures utilizing BGP, OSPF, EIGRP, policy-based routing, route redistribution, and high-availability networking strategies.
• Develop scalable connectivity solutions supporting AWS, Azure, Google Cloud, SaaS providers, colocation facilities, and hosted service environments.
• Engineer secure network connectivity between on-premises environments, cloud providers, partner organizations, and remote locations.
• Design and support Cisco-based switching, routing, wireless, and network services infrastructure deployed across enterprise and remote sites.
• Evaluate network utilization, traffic patterns, latency, throughput, and application performance to identify capacity constraints and support long-term growth planning.
• Develop network architectures supporting content delivery, application acceleration, load balancing, DNS services, edge networking, and user experience optimization.
• Perform network assessments, technical analyses, root-cause investigations, and remediation planning for complex enterprise network challenges.
• Support network security requirements through segmentation, access control, zero-trust integration, network monitoring, and secure connectivity architectures.
• Create and maintain network diagrams, implementation plans, standards, engineering documentation, configuration baselines, and operational runbooks.
• Provide senior-level technical leadership, mentoring, architecture reviews, and engineering guidance to network operations and infrastructure teams.

• Eight or more years of experience designing, implementing, and supporting large-scale enterprise WAN and LAN environments.
• Bachelor's degree in Computer Science, Information Technology, Engineering, Telecommunications, or a related technical field.
• Deep expertise in enterprise routing and switching technologies, including BGP, OSPF, EIGRP, route redistribution, policy-based routing, and network convergence.
• Experience engineering Cisco enterprise networking solutions, including routers, switches, wireless…