Commissioning Manager - Mechanical

Global Commissioning; Greater London; On-site; GBP 70,000 - 90,000; Full time

Benefits offered by this job

20 days holiday + bank holidays

5% Company Pension Contribution

Vitality Healthcare Coverage

Cycle to Work scheme

Job summary

Global Commissioning is seeking a Commissioning Manager to lead the design, installation and commissioning of critical IT and electrical systems within data centre environments. You will direct Project Managers, Supervisors and sub-contractors, ensuring on-time delivery and full design compliance through all project phases.

The role demands strong leadership, robust planning and hands-on experience with Level 4/5 commissioning, reports, and client communications across multiple sites.

Qualifications

• Completion of trade apprenticeship or qualifications – Essential
• CSCS / Safe Pass / ECS / SMSTS holder – Essential
• Prince 2 or equivalent – Desirable
• HNC in Electrical, Mechanical or Building Services – Desirable
• BEng (Hons) in an engineering discipline or equivalent – Desirable

Responsibilities

• Oversee design, installation and commissioning of critical systems in data centre environments.
• Lead commissioning workshops and coordinate on-site and off-site activities with sub-contractors.
• Draft and review commissioning plans, test scripts, and performance reports.
• Manage weekly client meetings and maintain commissioning trackers and documentation.
• Coordinate handover, training data collection, and final commissioning reporting.

Skills

Leadership

Team management

Stakeholder management

Education

BEng (Hons) in Electrical/Mechanical or Building Services

HNC – Electrical, Mechanical or Building Services

Prince 2 or equivalent

Job description

About us

Global Commissioning Limited is a privately owned consultancy, with our Head Office based in the UK. Specialising in the data centre industry, we offer commissioning management and validation services to project developers and operators, ensuring they receive a fully operational and design-compliant building at handover. We are a growing company and currently operate in multiple countries across Europe and we have active offices in Germany, Poland, Finland, France, Italy and the Netherlands.

The Role

As the Commissioning Manager, you will be pivotal in overseeing the safe, timely, and efficient design, installation, and commissioning of critical systems and IT infrastructure within data centre environments. This challenging position requires excellent leadership and organisational skills to manage services on and off-site, providing direction to Project Managers, Supervisors, and various sub-contractors as needed.

Primary Responsibilities

As the Commissioning Manager, your key responsibilities will include:

Design Phase

• Authoring and reviewing the Owner's Project Requirements, Basis of Design, and commissioning documents
• Drafting the Commissioning Plan and Programme, ensuring alignment with project goals and timelines
• Leading the Commissioning Agent Kick-Off Meeting, facilitating collaboration and understanding among stakeholders
• Compiling a comprehensive project directory, ensuring all relevant information is documented and easily accessible

Construction Phase

• Leading Level 2, Level 3, and Level 4 Commissioning Workshops, fostering teamwork and efficient execution of commissioning tasks
• Attending Factory and Field Witness Tests, overseeing the process, and producing related reports to ensure compliance with project specifications
• Developing Commissioning Checklists for electrical, mechanical, monitoring, and safety systems, guaranteeing thorough and systematic assessments
• Drafting Level 4 Test Scripts and Site Observation Reports, documenting observations accurately and providing clear action plans
• Conducting weekly commissioning and client meetings, maintaining effective communication channels throughout construction
• Managing and updating the Commissioning Tracker, ensuring all commissioning activities are tracked and progress is well-monitored

Acceptance Phase

• Overseeing Level 4 Commissioning across various systems, coordinating with project teams to resolve any issues promptly
• Collating and presenting Level 4 Commissioning data and preparing comprehensive reports for project stakeholders
• Drafting Level 5 Test Scripts and leading the Pre-Integrated Systems Testing Meeting, ensuring a smooth transition to the final commissioning phase
• Coordinating Level 5 Commissioning and producing the preliminary report, highlighting successes, and identifying areas for improvement

Handover Phase

• Coordinating system training data collection, ensuring end-users receive the necessary training for efficient system operation
• Reviewing Operations & Maintenance procedures, validating their completeness and accuracy
• Leading the "Lessons Learnt Workshop," facilitating a constructive discussion to identify valuable insights for future projects
• Delivering the Final Commissioning Report, summarising the commissioning process and outcomes to support the successful handover of the project

Qualifications And Experience

• Prince 2 or equivalent – Desirable
• Completion of trade apprenticeship or qualifications – Essential
• CSCS / Safe Pass / ECS / SMSTS holder – Essential
• HNC – Electrical, Mechanical or Building Services - Desirable
• BEng (Hons) in an engineering discipline or equivalent – Desirable

We will fully support those candidates who have the potential to achieve the above through further education, CPD, and mentoring.

As an employee of Global Commissioning, you will be eligible for:

• 20 days holiday plus bank holidays, increasing 1 day each year for the first 5 years of service
• 5% Company Pension Contribution
• Vitality Healthcare Coverage for you and your family

Fully Funded Training Courses And Qualifications

• Cycle to Work scheme
• BUPA Employee Assistance Programme
• Electric vehicle salary sacrifice after qualifying period

We are committed to equal opportunities and welcome applications from all sections of the community.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.