Brownlee Cale are seeking an experienced Mechanical/Electrical Supervisor (Electrically Biased) to join a critical water infrastructure project based in Wales. The ideal candidate will bring a strong electrical background. The role is part-time, requiring 2-3 days work per week. You will play a key role in supervising on-site M&E activities, ensuring works are delivered safely, on time, and to specification. Key Responsibilities: * Supervise and coordinate electrical and mechanical installation works across the site * Oversee the implementation and commissioning of instrumentation and control equipment, ensuring functionality and integration with SCADA or other control systems. * Monitor and enforce HSE standards and ensure all work complies with project specifications, industry standards, and relevant legislation. * Liaise with project managers, subcontractors, suppliers, and client representatives to coordinate site activities. * Review and interpret technical drawings and documentation. * Maintain accurate site records, including progress updates, inspections, and test results. * Support fault-finding and diagnostics on electrical and I&C systems as needed during commissioning and handover. * Ensure all temporary and permanent electrical installations meet safety requirements. Requirements: * Recognised Electrical qualification (e.g., NVQ Level 3, HNC/HND, or equivalent). * Proven supervisory experience on water or heavy infrastructure projects * Solid understanding of both electrical and mechanical systems, with a clear bias towards electrical. * Awareness of instrumentation and control systems (pressure/flow sensors, PLCs, SCADA) is preferred. * Strong working knowledge of relevant standards (e.g., BS7671, IEE wiring regs). * ECS/CSCS card and SSSTS or SMSTS certification desirable. * Excellent organisational and communication skills. * Valid UK driving licence. PLEASE NOTE: This position is CIS / Umbrella PAYE engagement only. If you would like to discuss this role further, please contact Siobhan Davis at Brownlee Cale