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

All interviews are conducted either in person or virtually with video required

Linesight is a highly successful global project and cost management consultancy that keeps clients coming back. And for that we have our people to thank. You see we’re not like the others. We’re different. Unique. It’s our fresh thinking and focus on what matters that has led to our evolving. We are on a journey working in some of the most exciting innovative sectors with some of the world’s most prestigious companies delivering major projects that deliver a more sustainable built environment. We have an open culture and a flat structure where you can expect to be treated with genuine care, respect, and empathy. With Linesight, you can truly discover the power of team! 
 

Diversity, inclusion and accessibility

Linesight is committed to transparent, equal opportunity employment practices. We are building a diverse and inclusive organisation, accessible to all, based on having a safe culture which enables all our people to be their true selves. We are a people business, and we understand that the more inclusive we are, the happier our people and better our work will be. We will ensure that individuals with disability are provided reasonable accommodation to participate in the application or recruitment process and are accommodated in the workplace. If you require assistance or accommodation of any kind, please mention this in your application, we would love to hear from you!