We are seeking an experienced Civil Site Manager to support additional capacity on a major electricity transmission infrastructure project. The successful candidate will take full responsibility for the day-to-day management of site activities, ensuring works are delivered safely, efficiently, and in line with programme and quality requirements. This role operates within high-voltage substation environments and requires strong leadership, extensive National Grid experience, and excellent knowledge of safety, quality, and construction management processes. Key Responsibilities Manage day-to-day site operations, including site operatives and subcontractors Plan, develop, and implement safety documentation, including: Construction Phase Plans Site Quality Plans Risk Assessments and Method Statements (RAMS) Prepare daily Safe Systems of Work (SSoW) and allocate works accordingly Produce and maintain Site Specific Risk Assessments and Method Statements Deliver site inductions, toolbox talks, and daily briefings Undertake regular site inspections to ensure compliance with health, safety, and environmental regulations Develop and maintain project schedules to ensure timely delivery of works Attend and contribute to weekly progress meetings Resolve site issues, constraints, and conflicts as they arise Ensure quality control measures are implemented throughout the project Maintain accurate site records and documentation, including a detailed site diary covering labour and activities Liaise effectively with stakeholders, including contractors, designers, and project teams Essential Requirements Candidates must hold the following: National Grid NSI 6 & NSI 8 (Full) SMSTS First Aid at Work SHEA Power / CSCS Temporary Works Coordinator & Temporary Works Supervisor Proven experience acting as Principal Contractor Site Manager (PCSM) on National Grid projects Desirable Experience & Qualifications Extensive knowledge of construction methodologies within the Electricity Transmission industry Competency to work in substations ranging from 66kV to 400kV Knowledge and experience working under NEC contracts Strong understanding of current health, safety, and environmental legislation Excellent written and verbal communication skills Ability to manage budgets and programme timescales effectively Strong team-working skills across multi-disciplinary project teams IT literacy, particularly Microsoft Outlook, Word, and Excel Full UK driving licence Willingness to travel and work away at project sites as required Relevant qualification in construction, mechanical engineering, or electrical engineering Previous or current National Grid TP 137.11 authorisation Existing SSE authorisation (minimum CAT1C) advantageous ersg are an equal opportunities employer; we are committed to promoting equality of opportunity for all job applicants. We do not discriminate against applicants on the basis of age, sex, race, disability, pregnancy, marital status, sexual orientation, gender reassignment or religious background; all decisions are based on merit