Job Title: Lead Commissioning Engineer - Electrical Location: Inverness, Scotland Day Rate: £70 - £80 per hour, Outside IR35 Start Date: ASAP - September 2025 Duration: 6 months (likely extension)Keywords: Lead Commissioning Engineer, Control & Protection, HV Substations, SSEN SAP, Transmission & Distribution, High Voltage We are seeking an experienced Lead Commissioning Engineer to oversee and deliver commissioning activities on a HV electrical renewable energy project, part of a critical high-voltage transmission network upgrade. This role will suit a candidate with significant experience in protection and control commissioning on high-voltage substations (132kV, 275kV, and 400kV). You will work closely with multi-disciplinary teams to ensure seamless project delivery, safety compliance, and technical excellence. Key Responsibilities Lead commissioning activities for high-voltage substation systems, ensuring safe, efficient, and timely delivery. Commission complex protection and control schemes, including: Feeders, Transformers, Isolators, Fault Throwers CTs, VTs, Differential Relays, Distance Relays Overcurrent Relays, Earth Fault Relays Inter-Tripping Schemes and Delayed Auto-Reclose systems Plan, manage, and execute commissioning schedules, ensuring all documentation, reporting, and handover activities are completed to the highest standards. Provide technical leadership and support to the commissioning team and site engineers. Conduct and supervise functional testing, integration testing, and FAT/SAT activities. Ensure all activities comply with relevant standards, including SSEN/TP141/SP authorisation requirements and IEC standards.Requirements Degree or equivalent qualification in Electrical Engineering (Chartered status preferred). Proven experience (5 years) as a Commissioning Engineer, ideally in a lead role on large-scale UK or EU substation projects. Hands-on experience with HV protection and control systems and commissioning of 132kV, 275kV, and 400kV assets. Relevant site safety qualifications, including CCNSG / Safety Passport, First Aid, Manual Handling, IOSH, and CSCS.This is a great opportunity to work on a high-profile renewable energy project in Scotland for a major EPC Contractor that has a large pipeline of projects. For more information or to apply, please apply or contact Maddie Jacob on (phone number removed) / (url removed)