Our client, a market-leading roofing and cladding contractor, is seeking an experienced Construction Planner to join their team on a high-profile project, where they are acting as the Principal Contractor. This is a secure and technically challenging environment requiring expert planning skills and proven experience in nuclear or defence projects.This role offers the opportunity to contribute to a major national infrastructure scheme while working with a contractor renowned for delivering specialist building envelope packages.Key Responsibilities:Programme Development: Create and maintain detailed construction programmes using Primavera P6, aligned with project deliverables and milestonesNEC Programme Management: Ensure all programmes comply with NEC contract obligations, including time-risk allowances, critical path analysis, and change controlProgress Tracking: Monitor site activity against plan, produce short-term lookaheads, and manage reporting of delays or deviationsCollaborative Planning: Liaise with site teams, subcontractors, designers, and project managers to coordinate sequencing and schedulingScenario Analysis: Conduct "what-if" simulations to assess potential risks and develop recovery strategiesRisk Management: Identify planning risks and opportunities, integrating them into the programme management processClient Liaison: Provide clear, structured programme updates and reports to client-side representatives and regulatorsSecurity and Compliance: Operate within s