Senior Planner Aldermaston – Full Time On Site 18-Month Contract £55 per hour Umbrella Inside IR35 Active DV Clearance Required The Opportunity We are supporting a major government-backed programme seeking an experienced Senior Planner to join a highly secure and complex delivery environment. This is a long-term opportunity for a proactive planning professional with strong Primavera P6 expertise and experience operating within large-scale engineering, infrastructure, defence, or highly regulated programmes. This role will play a critical part in maintaining schedule integrity, supporting programme delivery, and driving effective planning practices across project teams. The Role Key Responsibilities Maintaining and managing Integrated Master Schedules (IMS) Delivering planning and Earned Value Management (EVM) analysis and reporting Conducting schedule forecasting, variance analysis, and critical path analysis Supporting business rhythms and project controls activities Producing planning deliverables in line with programme governance requirements Promoting planning best practice across project and programme teams Leading planning meetings and stakeholder engagement sessions Supporting the continuous improvement of planning processes, procedures, and tools Developing strong working relationships across programme and operational teams Supporting emergent projects and additional planning activities where requiredEssential Skills & Experience Active DV Clearance (non-negotiable) Strong Primavera P6 background Proven experience within project controls and programme planning environments Strong understanding of planning fundamentals and critical path analysis Experience with Earned Value Management (EVM) and schedule performance analysis (SPI) Confident leading planning discussions and promoting planning best practice Excellent stakeholder engagement and communication skills Ability to work effectively with project managers, engineers, technical teams, and senior stakeholders Experience adding measurable value to programmes and project deliveryAdditional Information Full-time onsite in Aldermaston 18-month contract opportunity £55 per hour umbrella