Site Supervisor – High Voltage (132kV Substations / SSEN Projects) Location: London / M4 Corridor / Swindon Salary: £60,000 – £70,000 per annum Sector: Power Infrastructure | Utilities | Transmission & Distribution The Opportunity A leading national contractor is seeking a High Voltage Site Supervisor to support a major 132kV SSEN substation and cabling programme across the South of England. This is a long-term, secure role within the energy infrastructure and renewable transition sector, with over 88 confirmed substation projects running through 2028. Key Responsibilities * Supervise and coordinate HV cabling and substation construction activities * Deliver projects in line with SSEN safety and technical standards * Manage site teams, subcontractors and daily work schedules * Provide on-site leadership for power infrastructure delivery * Ensure compliance with CDM regulations, environmental and quality procedures Required Experience * Proven background on high voltage (HV) substation or cabling projects * Experience working on SSEN, National Grid or similar T&D projects * SSSTS & CSCS (essential) * Understanding of 132kV systems, SSEN Cat 3 and SSSTS requirements * Strong site supervision and stakeholder communication skills What’s on Offer * Long-term contract across multiple energy and utilities projects * Competitive pay with flexible engagement models * Car allowance, fuel card, holiday entitlement * Excellent progression within the power and utilities industry Apply today to secure your place on a leading UK energy infrastructure programme. Immediate interviews available