Critical Systems Commissioning lead – Mechanical

We are seeking an experienced Mechanical Critical Systems Commissioning Lead to help develop and lead the commissioning strategy for advanced cooling systems supporting next-generation data centre applications.

This is a technical role within our central commissioning function, combining hands-on commissioning expertise, technical leadership and development of commissioning standards. You will work across product development, factory testing and site deployment, supporting regional teams to ensure safe, repeatable and high-quality commissioning from design review through FAT, SAT, integrated systems testing (IST) and final handover.

The role is particularly suited to an experienced mechanical commissioning professional with a strong background in hydronic systems, HVAC, chilled-water systems or mission-critical infrastructure who wants to develop further expertise in liquid-cooled data centre technology.

Commissioning Strategy & Technical Leadership

• Develop and own the mechanical commissioning strategy for liquid-cooled and mission-critical cooling products.
• Define commissioning philosophy, test levels, hold points, acceptance criteria and documentation requirements.
• Provide design-for-commissioning input during design reviews and new product development.
• Act as a senior technical resource for mechanical commissioning issues, troubleshooting and risk resolution.
• Drive lessons learned and continuous improvement into future product designs and commissioning processes.

Experience & Qualifications

• Relevant mechanical commissioning, HVAC, building-services or mission-critical engineering experience.
• Strong practical knowledge of hydronic systems, chilled-water systems and mechanical cooling equipment.
• Experience commissioning data - centre or liquid-cooling systems is highly desirable but not essential where the candidate can demonstrate strong transferable commissioning experience.

Working knowledge of:

• Hydronic system operation, balancing and commissioning.
• Pumps, valves, heat exchangers and associated pipework.
• Pressure testing, flushing and water-quality requirements.
• Controls and BMS/PLC interaction.
• Functional performance testing.
• Redundancy and failure-mode testing.
• Experience supporting FWT, SAT or site commissioning activities.
• Relevant mechanical/building-services engineering qualification, trade background or equivalent industry experience.
• Experience working across multiple locations or with regional teams is advantageous.

You will be comfortable operating as both a technical authority and practical commissioning engineer. You should be able to challenge designs constructively, troubleshoot complex systems, produce clear technical documentation and make sound engineering decisions under pressure.

You will also be comfortable travelling to support factory testing, first-of-kind deployments and critical commissioning activities as required.

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