Senior Manager - Supply Chain - Project Management

Description & Requirements Smurfit Westrock (NYSE:SW) is the go-to leader and partner of choice in sustainable packaging. We are dedicated to creating efficient and scalable paper and packaging solutions to help solve complex packaging challenges. Guided by our values of safety, loyalty, integrity and respect, we are committed to delivering meaningful value for shareholders, customers, employees and the communities where we operate. The Opportunity The Senior Manager, Supply Chain facilitates and manages strategic initiatives that improve supply chain performance, service, cost take-out, productivity, inventory visibility, value realization, and execution across the Corrugated Packaging organization. This role leads and supports cross-functional initiatives that may include, but are not limited to, performance packaging optimization, working capital and inventory reduction, standard board combinations, cost-out and productivity programs, network optimization, technology implementation value tracking, planning process improvements, and leadership reporting. The leader partners with the appropriate functional owners — including operations, planning, commercial, finance, logistics, IT, customer service, plant leadership, mill teams, and other stakeholders — to coordinate workstreams, remove barriers, represent Corrugated priorities, support a network view, track commitments, and deliver sustainable business results. Responsibilities Lead and support strategic supply chain initiatives that may include performance packaging optimization, inventory and working capital reduction, standard board combinations, cost-out and productivity programs, network optimization, technology-enabled process improvements, planning process improvements, and other evolving business priorities. Translate strategic supply chain priorities into structured initiative plans, including scope, milestones, accountabilities, resource needs, dependencies, risks, success measures, expected business outcomes, and follow-up actions. Support the supply chain initiative operating rhythm, including priority setting, progress reviews, executive communications, decision tracking, and follow-through on key commitments. Build and maintain initiative calendars, milestone tracking, action logs, and accountability mechanisms across multiple concurrent workstreams. Own the initiative management discipline across assigned workstreams, including opportunity sizing, action planning, milestone tracking, savings and value realization, risk identification, escalation, and progress against committed targets. Partner with plants, mills, supply chain teams, IT, Finance, Commercial, Logistics, Customer Service, and other functional owners to validate opportunities, align actions, remove barriers, and ensure initiatives are feasible, measurable, and sustained. Coordinate the piloting, implementation, and continuous improvement of supply chain programs, tools, processes, and ways of working. Establish and maintain a cross-functional governance cadence with Operations, Commercial, Finance, Logistics, the IT organization, Planning, and Customer Service to ensure initiative commitments, risks, decisions, and follow-up actions remain visible and actioned. Serve as the Corrugated Supply Chain liaison with the mill team, representing Corrugated priorities in cross-functional discussions, supporting network-level visibility, and helping align actions, tradeoffs, and decisions across mill and box plant considerations. Prepare leadership-ready updates that clearly communicate initiative status, financial and operational impacts, barriers, dependencies, risks, tradeoffs, and recommended decisions. Develop practical resources, documentation, training materials, and communication plans that enable consistent execution and long-term sustainability. Drive change management and sustainment by supporting adoption, standard work, communication, training, process compliance, and ongoing accountability aft…

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