Senior Planner - Infrastructure / Energy ProjectsLocation: Waltham Abbey (Hybrid - 3 days on site) A leading infrastructure contractor is seeking an experienced Senior Planner to join their growing delivery team, supporting a portfolio of major transmission and energy projects across the UK.This is an excellent opportunity to take a key role in planning and programme management across complex projects covering design, procurement, and construction phases. The Role As Senior Planner, you will be responsible for developing and managing robust project programmes while working closely with delivery teams to ensure successful project execution. Key Responsibilities Build, optimise and maintain detailed construction programmes, including resources, outages, consents and wayleaves Monitor and report progress through programme updates and reporting tools, including weekly trackers Work closely with Project Managers, Engineers and commercial teams to ensure programme alignment Support integration of cost and planning systems, including earned value reporting (CPI/SPI) Provide planning input at tender stage and support project mobilisation and handover Manage and maintain risk, issue and opportunity registers in line with change management processes Attend client and site meetings as required, ensuring delivery against programme and KPIs Ensure programme compliance with contractual requirements and support risk mitigation strategies Con...