Mechanical Commissioning Lead - Liquid-Cooled Data Centers

YDU JC Air Cond & Ref Inc.- Dubai; Dublin; On-site; EUR 110,000 - 170,000; Full time

Job summary

Johnson Controls in Dublin seeks a Senior Mechanical Commissioning Engineer to own the commissioning strategy for liquid-cooled data centre systems. You will develop methodologies, author procedures, and govern execution across regional site teams, serving as the technical authority from design review through IST and handover.

The role requires 10+ years in mission-critical mechanical commissioning, strong hydronic and BMS/PLC knowledge, cross-geography collaboration, and a pragmatic,

Qualifications

• 10+ years of experience in mechanical commissioning of mission-critical facilities.
• Proven experience commissioning liquid-cooled data centre systems.
• Strong knowledge of hydronic design and commissioning.
• Experience with BMS/PLC interaction and fault analysis.
• Willingness to travel for FATs and critical site work.
• Excellent technical documentation skills.

Responsibilities

• Own the mechanical commissioning strategy for liquid-cooled data centre products.
• Define commissioning philosophy, test levels, hold points, and acceptance criteria.
• Provide design-for-commissioning input during early design and product development.
• Act as final technical authority for mechanical commissioning issues and risk resolution.
• Audit commissioning execution for compliance with strategy and standards.
• Witness FAT, SAT, and critical onsite tests.
• Support regional teams with complex fault finding and system tuning.
• Collaborate with electrical and controls leads during IST and handover.

Skills

10+ years experience

Liquid-cooled data centres

Hydronic design

BMS/PLC integration

Travel willingness

Technical documentation

Education

Mechanical Engineering degree or equivalent

Job description

Johnson Controls in Dublin seeks a Senior Mechanical Commissioning Engineer to own the commissioning strategy for liquid-cooled data centre systems. You will develop methodologies, author procedures, and govern execution across regional site teams, serving as the technical authority from design review through IST and handover.

The role requires 10+ years in mission-critical mechanical commissioning, strong hydronic and BMS/PLC knowledge, cross-geography collaboration, and a pragmatic,