Electrical Mechanical Site SupervisorLocation DinorwigOutside IR35 Contract17 March 2026 to 21 December 2026Spencer Ogden are currently recruiting for an experienced Site Supervisor to support works within the Power and Energy sector on behalf of a leading engineering client at Dinorwig.This is an excellent opportunity for a hands on, proactive individual with Electricity Supply Industry construction experience to take a leadership role coordinating small site teams and driving safe efficient project delivery.The RoleReporting directly to the Site Manager, you will take the lead in coordinating teams across multiple work fronts, ensuring works are delivered on time, to the required quality, within cost and in full compliance with site QEHS standards.You will also hold a strong duty of care for yourself and all personnel on site, ensuring safe working practices are maintained at all times.Key ResponsibilitiesWork in line with all applicable QEHS procedures as briefed during site induction.Lead assigned teams across various work fronts.Forward plan upcoming works to ensure engineering information is available, plant and materials are on site, labour is coordinated and activities are deliverable to programme.Operate within agreed project timescales and proactively flag potential delays.Coordinate with other contractors and work parties to ensure safe and efficient delivery.Capture delay and disruption against original scope where required.Assist with project documentation and milestone deliverables.Ensure task cards are completed on time and to standard.Maintain accurate timesheets and expense submissions.Experience RequiredApprentice trained with C and G or NVQ Level 3 in a relevant discipline plus minimum one year experienceorIndustry recognised training with minimum two years experience on Electricity Supply Industry construction sites, Power Generation, Oil and Gas or General Construction environments.You must have demonstrable experience in mechanical and or electrical installation activities, working within a live power environment, monitoring Health Safety Quality and Environmental compliance and leading small site teams.Essential Qualifications for All Construction ProjectsCSCS or CCNSG Safety PassportSSSTS or SMSTSThree Day First AidIPAFTemporary Works SupervisorHSG47MEWPRoto 360Manual HandlingWorking at HeightFire Safety AwarenessClient Specific Example National Grid or SSESSE Authorisation Cat 3Scottish Power or NG Person BESCNG Competent Person NSI6NG Competent Person NSI8 LimitedPersonal AttributesGood interpersonal skillsProficient IT skills including Word and ExcelProactive attitude to support site initiatives and communication with site management and team membersStrong problem solving capabilityAbility to lead site teams and maintain effective working relationshipsPositive approach to conflict resolutionContract DetailsLocation DinorwigOutside IR35Start Date 17 March 2026End Date 21 December 2026Competitive day rate dependent on experienceIf you are a motivated Site Supervisor with strong ESI experience and are looking for your next Outside IR35 contract, we would welcome your application.