Salary: £40,800 - 40,800 per year Requirements: Proven experience delivering mainframe modernisation or legacy transformation programmes Strong retail supply chain and logistics domain knowledge Hands-on or working knowledge of Warehouse Management Systems (WMS) Understanding of omnichannel fulfilment models (store, DC, click & collect, ship-from-store) Experience managing large, multi-vendor, distributed teams Agile delivery experience with excellent stakeholder engagement skills Large-scale transformation leadership experience (desirable) Cloud exposure (Azure and/or AWS) (desirable) Programme governance, budgeting, and risk management expertise (desirable) Warehouse operations experience (desirable) SAFe, PMP, or Agile certifications (desirable) Responsibilities: Lead end-to-end delivery of a large-scale mainframe modernisation programme Define programme roadmap, milestones, and delivery strategy Work closely with senior business, supply chain, platform, and engineering teams Partner with architects to shape modern, scalable target-state architectures Drive migration, re-platforming, or decommissioning of legacy mainframe systems Own transition of systems supporting replenishment, inventory, DC operations, and order fulfilment Manage vendors, system integrators, and cross-functional delivery teams Proactively manage risks, dependencies, and mitigations Track KPIs and provide executive-level programme reporting Ensure governance, quality, security, and compliance standards are met Lead change management and continuous improvement initiatives Technologies: AWS Azure Cloud Security More: We are seeking a Technical Program Manager to lead a high-profile mainframe modernisation programme within a major retail supply chain and logistics environment. This role will drive the transformation of business-critical legacy platforms supporting warehouse, distribution, inventory, and fulfilment operations, ensuring minimal disruption during peak retail trading cycles. Our office is located in Coventry, and we offer a hybrid working model with 2 days per week onsite. This is a contract role with a duration of 6 to 12 months, and we offer a competitive rate of £460 per day inside IR35. last updated 19 week of 2026