Are you an experienced Senior Project Manager ready to lead complex IT delivery in a secure Defence environment?We are involved in a significant greenfield programme, building a solution that integrates infrastructure and applications within highly secure, mission-critical environments.We are looking for an experienced Senior Project Manager to lead the delivery of complex IT and change initiatives within the Defence sector.This role would suit someone with a strong track record of managing end-to-end delivery in secure, highly regulated environments, and who brings a clear understanding of governance, stakeholder engagement, and delivery risk.You will work across technical and business teams to deliver secure, high-quality outcomes in a collaborative and inclusive way.The role is full-time on site in Hertfordshire, and you will need to hold active MoD Developed Vetting (DV) clearance.What they will be doing:Lead the end-to-end delivery of IT projects and programmes within the Defence sector.Manage project scope, timelines, budgets, risks, issues, dependencies, and governance across the full delivery lifecycle.Work closely with technical teams, architects, suppliers, and business stakeholders to support successful and secure delivery.Prepare and present clear project reporting, delivery plans, RAID logs, and status updates for senior stakeholders and governance forums.Ensure delivery aligns with relevant security, compliance, and operational requirements.Build strong working