Senior Commissioning Manager - Electrical (Substation)
The opportunity
We are seeking an experienced Senior Commissioning Manager with a strong electrical background to lead and manage commissioning activities across a mission critical data centre and associated high voltage substation. You will oversee the full commissioning lifecycle from planning and readiness reviews through energisation, integrated systems testing and operational handover. This role requires technical authority, leadership and the ability to coordinate multiple stakeholders in a live, safety-critical environment.
Key Responsibilities:
• Lead development and implementation of the overall commissioning strategy across data centre and substation infrastructure
• Manage commissioning activities for HV/MV electrical systems including switchgear, transformers, protection systems, UPS, generators and distribution networks
• Coordinate energisation planning, switching procedures and utility interface requirements
• Oversee Level 1–5 commissioning processes including FAT, SAT, pre-functional testing, functional testing and integrated systems testing (IST)
• Chair commissioning readiness reviews ensuring construction completion and documentation quality meet entry criteria
• Direct specialist vendors, contractors and commissioning engineers to deliver testing safely and to programme
• Ensure compliance with electrical standards, commissioning specifications and safety regulations
• Manage risk during energisation and live testing activities including lock-out/tag-out and permit procedures
• Track and resolve defects, snags and system integration issues through to closure
• Provide reporting on commissioning progress, risks and operational readiness to senior stakeholders
• Coordinate handover to operations teams including training, O&M manuals and final documentation
• Align commissioning milestones with overall project programme and data centre operational readiness targets
• Promote a strong safety culture throughout all testing and energisation activities
Requirements:
• Degree in Electrical Engineering, Building Services Engineering or related discipline
• Minimum 10+ years’ experience commissioning mission-critical electrical infrastructure
• Strong understanding of HV/MV systems, protection coordination, generators, UPS and critical power distribution
• Experience commissioning substations and data centres or similar critical environments
• Familiarity with Level 1–5 commissioning methodology and integrated systems testing
• Strong stakeholder coordination skills across client, contractors, vendors and utilities
• Experience working within structured project frameworks and contract environments (FIDIC, NEC or similar)
• Excellent problem-solving, leadership and communication skills
• Proficient in commissioning documentation and reporting systems
• Professional certification or commissioning accreditation desirable
At Linesight, we believe that our success is tied to the success of our employees, and we are committed to creating a workplace that is fair, equitable, and inclusive for everyone. We understand that creating an environment where all employees have an equal opportunity to thrive requires a concerted effort across every stage of their time with us, from hiring and onboarding to promotion, career growth, and development.
As part of this commitment, we have implemented a range of policies and initiatives to promote diversity, equity, and inclusion (DE&I). This starts with our attraction pipeline and accessible job descriptions, designed to attract a broad range of candidates, and continuing throughout the employee life cycle with DE&I checks built in at every stage. Fairness, consistency, and transparency are the core principles for all our hiring, salary increase, and promotion decisions with built-in gender pay gap checks. Employee and family-friendly policies also enhance inclusion and equity in our teams.
About Project Management
Our teams of program and project managers deliver success globally through strategic planning and stringent controls. Whether you have extensive experience or are at the early stages of your career in program or project management, we offer the opportunity to work on some of the most innovative buildings and facilities with world-leading clients. Play a central role in these projects as part of our dynamic team. We recognise the value that each team member can bring to the table, and we offer a range of supports, learning pathways and structured career planning cycles to ensure that every individual has the best opportunity to excel and further develop, regardless of the stage of your career you join us at.
Life at Linesight
