Sr. Network Engineer & Warehouse Operations

McKesson is an impact-driven, Fortune 10 company that touches virtually every aspect of healthcare. We are known for delivering insights, products, and services that make quality care more accessible and affordable. Here, we focus on the health, happiness, and well-being of you and those we serve – we care.What you do at McKesson matters. We foster a culture where you can grow, make an impact, and are empowered to bring new ideas. Together, we thrive as we shape the future of health for patients, our communities, and our people. If you want to be part of tomorrow’s health today, we want to hear from you.Sr. Network Engineer & Warehouse OperationsLocation: Richmond. VA (hybrid)Competitive base pay, bonus and benefit eligibleThe Opportunity:Responsibilities:1. Network Discovery & Dependency MappingConduct structured discovery of all network environments in scope — distribution centers, corporate campuses, warehouse facilities, device networks, and hybrid cloud interconnects before any migration wave begins.Inventory all physical network infrastructure (switches, routers, firewalls, load balancers, wireless controllers, OT/IoT device networks) across every site in scope.Map application and service dependencies on the existing network topology identifying which workloads, integrations, and operational systems have hard dependencies on current addressing, routing, or latency characteristics.Document current-state VLAN structure, IP addressing schemes, routing protocols, WAN/MPLS topology, and site-to-site connectivity in sufficient detail to design against.Identify and flag all latency-sensitive or operationally critical network paths (ERP transactions, warehouse device polling, distribution operations) that require special handling during migration.Produce dependency maps and site network profiles as formal migration inputs, not informal notes.2. Future-State Architecture DesignDesign the target-state network architecture for New Company, aligned to a GCP-centric, cloud-first operating model, covering all site types in scope.Design the GCP network foundation: VPC topology, Shared VPC strategy, Cloud Interconnect and Cloud VPN architecture for DC and campus connectivity, DNS (Cloud DNS), and global load balancing.Architect SD-WAN or cloud-managed WAN strategy to replace MPLS dependencies and connect distribution centers, campuses, and warehouse sites to GCP.Define network segmentation strategy for warehouse and distribution center OT/IoT device networks including separation of operational device traffic from corporate and cloud-bound traffic.Design wireless network architecture for warehouse and campus environments, including device density planning for handheld scanners, printers, and automation equipment.Produce architecture decision records (ADRs) for all significant design choices, establishing documented rationale that the team can rely on post-transformation.3. Migration Wave PlanningTranslate discovery and architecture outputs into a structured, sequenced migration program with clear wave definitions, dependencies, and go/no-go criteria.Define migration waves that sequence sites by risk, complexity, and business criticality ensuring distribution centers and warehouse operations are migrated with appropriate safeguards.Build wave plans that include scope definition, dependency pre-requisites, rollback procedures, communication requirements, testing protocols, and cutover windows.Identify and resolve cross-wave dependencies particularly where network changes at one site affect application or integration behavior at another.Coordinate wave planning with broader carve-out program workstreams: ERP (JDE) migration, integration platform migration (MuleSoft to Spring Boot), and infrastructure separation from McKesson.Maintain a living migration tracker visible to program leadership not a deck updated monthly, but a real-time source of truth on wave status, risks, and blockers.4. Cutover Execution — Distribution Centers, Campuses & WarehousesLead hands-on cutover execution for each migration wave including on-site presence at distribution centers and warehouse facilities where operational continuity is non-negotiable.Lead pre-cutover readiness reviews: confirm all dependencies resolved, rollback procedures tested, communication bridges established, and operations teams briefed.Execute network cutovers during defined maintenance windows including VLAN changes, routing transitions, firewall policy migrations, WAN cutover, and DNS transitions.Manage on-site network cutovers at distribution centers and warehouse facilities, coordinating directly with operations teams, shift supervisors, and WMS owners to minimize operational disruption.Execute post-cutover validation checklists confirming connectivity, application reachability, device polling, latency benchmarks, and monitoring coverage before declaring success.Own rollback execution when cutover criteria are not met with the judgment to call it and the preparation to execute it cleanly.5. Device Networks — Warehouses & Operational TechnologyWarehouse and distribution center environments include dense device networks (barcode scanners, label printers, conveyor controllers, RF guns, automation systems) that require specialized handling during migration.Understand and account for device network requirements: DHCP reservation management, RF channel planning, device authentication (802.1X or MAC-based), polling frequency, and latency tolerance.Coordinate device network changes with operations and WMS teams no device network change is executed without operations sign-off.Validate all operational devices post-cutover: scanner connectivity, print server reachability, WMS communication, and any PLC or automation system dependencies.6. Hybrid Cloud Connectivity — GCP IntegrationEstablish and validate the network connectivity between NewCo's physical sites and GCP, ensuring ERP, integration, and application workloads perform to SLA from all locations.Configu