Head of Technical & Commissioning

Job-ID: 103301Category: Operations EngineeringLocation: Home Based, United KingdomWorkplace: HybridPosted: 2026-10-29Contract Type: PermanentDriving Required: YesSecurity Clearance Required: NoDue to continued growth, we are recruiting a Head of Technical & Commissioning.

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This role is in the Operations Engineering job family, supporting Costain project delivery, with a focus on high voltage site construction operations (HV commissioning), Technical assurance and compliance.This is a high voltage (up to 400kV) technical and commissioning expert role, supporting National Grid substation construction / Cabling and OHL development works predominately.   This role will be the business unit’s technical expert for HV substations, Cabling, OHL projects & commissioning activities.

They will own the processes, controls, assurance, competency, etc across the whole project lifecycle – tender, design, construction, commissioning and handover. #LI-AW1QualificationsEssentialOver 10 years experiences in the transmission industry for Tier 1 contractors or Electricity Transmission clientsStrong knowledge of UK HV (up to 400kV) project / construction operations at all stages of project life cycle Have detailed knowledge and experience of National Grid standards and requirements (TSs & SRs)Strong leadership skillsCommercial / contractual awarenessSafety and quality focussedRisk and opportunity managementDigital skills relevant to requirementsBe a UK Chartered Engineer, CEng MIETCurrently holds or previously held TP141/SR141 Commissioning Engineer Authorisation or Senior Authorised Person (SAP) PositionNG Persons AuthorisationDesirableLine management and people development (depending on role) experienceConnections to industry bodies / institutionsCommercial / contractual trainingResponsibilitiesResponsibilitiesProvide technical leadership across all HV projects, supporting client sales, tendering, technical delivery, supplier selection, construction, quality, commissioning and handover. Supports governance gates and internal reviews for compliance with National Grid technical specifications, procedures and supplier requirementsWork with the design leaders to ensure all design output and scope is compliant with HV requirements including National Grid / other clients.   Signs off technical nominations for CDAEs, LCDAEs and Principal Designer in line with SR188Responsible for development and assurance of HV technical working procedures aligned to the project, Costain, client and regulatory needs, ensure these integrate with other disciplinesOwns 'How to Work Safely on HV transmission projects' procedureSafety focus: particularly management of hazards associated with HV sites i.e.

Electricity at Work Regs 1989, impressed voltages, HSG47, GS6Owns Impressed Voltage Management Procedure and signs off on Impressed Voltage Management Plans per projectIssues appointment/ nomination forms for Earthing Control Persons (ECPs) and Earthing Application Persons (EAPs)Independently reviews commissioning plans for live projectsProven track record of building strong and trusted relationships with NG Asset Operations and NG Commissioning EngineersResponsible for HV technical competency, both in discipline and for others involved in delivery, such as civils on a HV site.  Define training and competency needs for all roles on HV works, establish a career pathway in HV and succession plans.Ensures all Costain National Grid staff have the required competencies to execute their roles (works with SHE Team to audit this)Able to take the lead and resolve complex, multifaceted technical challenges in their discipline; can recognise and mange interfaces with othersi. xwzovoh e.

Protection and control systems, HVDC, testing & commissioning, energisation, Return to Service (RTS) activities, HVSCC, handoverExpert communicator and visible leader, supporting both on project and wider initiatives, expert in risk, value engineering and optioneering, etc.Expert in reporting status, including spend, risk, performance and HSEQ mattersDriving quality control / assurance across the HV projects operations, focus on achieving right first time and predictable deliveryStrong focus on continuous improvementAttend/ sign off FATs with the client and or suppliers Ensures lessons learned and best practice are captured across all projectsCollaborate with project leadership, procurement, commercial and supply chain to drive deliveryHave an in-depth knowledge of the HV supply chain used in the UK, in particular National Grid.Familiar with OEMs HV equipment, experience of FATs and SATs