Senior Project Manager – Legacy Platform DecommissioningWe are looking for aSenior Project Manager, based inSpainand working100% remotely, to support one of theleading global pharmaceutical companies.In this role, you will lead the end‐to‐end decommissioning of a legacy platform, coordinating cross‐functional teams to design, build, and test all required interfaces in the new environment. This is a highly hands‐on delivery role, driving tangible outcomes, managing complex dependencies, and ensuring a seamless transition while maintaining full business continuity throughout the migration.Key Accountabilities Lead the decommissioning of the legacy platform and migration to the new solution. Coordinate cross‐functional teams to design, build, and test required interfaces. Resolve blockers quickly and maintain delivery momentum. Ensure smooth coexistence between legacy and new platforms during transition. Manage risks, cutover activities, and go‐live with minimal business impact. Track dependencies, align stakeholders, and support decision‐making. Oversee budget, resource allocation, and vendor costs. Execute controlled shutdown of legacy components and handle data archival. Drive a results‐focused delivery culture and ensure progress toward milestones.Required Experience & Skills Essential Senior‐level experience delivering complex IT transformation projects. Strong technical understanding to collaborate with architects, developers, and infrastructure teams. Proven experience in platform migrations or system decommissioning. Ability to influence and coordinate cross‐functional teams without direct authority. Hands‐on, problem‐solving mindset and comfort diving into technical detail. Solid budget management skills (tracking, forecasting, cost control). High level of English (spoken and written).Desirable Background in data platforms, enterprise integration, or application modernization programmes. Understanding of API design, data integration patterns, ETL processes, and cloud platform architectures. Experience working in regulated industries with compliance and data governance requirements.What We Offer Freelance collaboration through Hays, providing a streamlined and professional contracting experience. 100% remote work, with occasional on‐site visits to our Barcelona offices only when strictly required. Ongoing support throughout the engagement, ensuring smooth onboarding and day‐to‐day collaboration. Competitive rates aligned with senior expertise and market standards. Opportunity to contribute to a high‐impact transformation project in a dynamic, international environment.