Job Information
Robert Half WMS Project Manager in Ephrata, Pennsylvania
Description Responsibilities / Day-to-Day
Own end-to-end delivery of a Manhattan Active Warehouse Management (WMS) implementation, ensuring alignment to defined scope, timeline, and business outcomes
Develop and maintain a dynamic master project plan, managing dependencies across testing, integrations, training, and go-live activities
Define and govern system scope, configurations, and customizations; manage change requests with clear business justification and timeline impact
Act as the primary liaison between internal stakeholders and the WMS vendor, holding all parties accountable to delivery commitments, timelines, and SLAs
Lead cross-functional coordination across Operations, IT, Inventory, Finance, QA, and HR to ensure alignment and execution
Establish and enforce RACI, ensuring all deliverables have clear ownership and committed deadlines
Drive defect management and triage processes, ensuring timely resolution and prioritization throughout testing phases
Own User Acceptance Testing (UAT), including planning, execution, defect resolution cycles, and business sign-off
Plan and execute Mock Go-Lives and develop a detailed cutover runbook with defined rollback criteria
Lead go-live execution, including war room coordination, issue resolution, and stakeholder communication
Oversee post-go-live hypercare, tracking issues, stabilizing operations, and ensuring successful transition to steady state
Maintain a proactive risk and issue management process, identifying and escalating risks early with mitigation plans
Provide concise executive-level reporting, including status, risks, and key decisions required
Qualifications
7+ years of project management experience, including full lifecycle WMS or ERP implementations (design through go-live and hypercare)
Direct experience with Manhattan Associates WMS (Manhattan Active WM preferred)
Proven ability to define scope, manage configurations/customizations, and build/execute detailed project plans
Strong experience managing enterprise software vendors and holding them accountable to delivery commitments
Background in distribution, logistics, supply chain, or similar operational environments
Demonstrated success delivering complex, cross-functional projects with tight timelines and high visibility
Strong leadership and communication skills, with the ability to influence stakeholders at all levels, including executive leadership
Ability to operate independently, drive accountability, and manage competing priorities in a fast-paced environment
Willingness to work on-site as needed (more frequently during project kickoff); regional travel preferred
Preferred:
PMP or equivalent certification
Experience with large-scale workforce change management
Familiarity with defect tracking tools and reporting (e.g., Jira, Salesforce, etc.)
Experience supporting high-volume or 24/7 operational environments Requirements Business Requirement Document, Change Management, Manhattan WMS, WMS System, Project scoping, Project Planning Technology Doesn't Change the World, People Do.®
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