Senior Mechanical Commissioning Manager

Clear.; Dublin; On-site; EUR 120,000 - 180,000; Full time

Job summary

Clear. is seeking a Senior Mechanical Commissioning Manager to lead global commissioning activities for large-scale data centre projects.

The role focuses on developing standardised strategies from planning through handover, acting as a subject matter expert for critical mechanical systems, and ensuring design intent aligns with operations. The position requires 10+ years in mechanical commissioning/engineering in complex infrastructure, with strong data centre experience and PM capabilities.

Qualifications

• Degree in Mechanical Engineering or similar preferred.
• 10+ years’ experience in mechanical commissioning and/or engineering within complex infrastructure environments.
• Strong background in data centres or mission-critical facilities highly desirable.
• Strong understanding of HVAC, cooling, chilled water and critical mechanical systems.
• Experience leading commissioning teams in a matrix or multi-stakeholder environment.
• Project management experience or certification (or equivalent practical experience).

Responsibilities

• Lead and support global mechanical commissioning activities across multiple live projects.
• Develop and implement standardised mechanical commissioning strategies from planning through to handover (L0–L6).
• Act as subject matter expert across mechanical systems within mission-critical environments.
• Ensure alignment of mechanical design intent with operational performance requirements.
• Oversee commissioning of critical mechanical plant and equipment including HVAC, cooling, chilled water, pumps, CRAH/CRAC units and associated systems.
• Drive commissioning planning, scheduling, sequencing, and tag management.
• Lead technical validation workshops and system completion planning sessions.
• Ensure strict adherence to safety systems including PTW, SSOW, and LOTO.
• Manage OFCI / CFCI vendor and contractor interfaces across complex delivery environments.
• Develop and review commissioning documentation, test scripts, method statements, and procedures.
• Oversee equipment start-up, pre-functional checks, functional testing, performance testing, and integrated systems testing.
• Manage punch lists, defect resolution, and structured close-out processes.
• Support QA/QC teams to ensure quality-led commissioning delivery and minimal rework.
• Drive data-led decision making using completion and commissioning tracking systems.
• Identify and mitigate risks across mechanical commissioning execution and system handover.
• Provide leadership to commissioning teams and underperforming stakeholders where required.

Skills

Mechanical commissioning

Leadership

HVAC systems

Data centres

Project management

Education

Degree in Mechanical Engineering

Job description

Clear are currently supporting a leading global organisation within the mission‑critical data centre sector in the search for a Senior Mechanical Commissioning Manager to join their global function.

This is a senior-level appointment responsible for driving mechanical commissioning excellence across complex, large-scale infrastructure projects on a global basis.

Key Responsibilities

• Lead and support global mechanical commissioning activities across multiple live projects
• Develop and implement standardised mechanical commissioning strategies from planning through to handover (L0–L6)
• Act as subject matter expert across mechanical systems within mission‑critical environments
• Ensure alignment of mechanical design intent with operational performance requirements
• Oversee commissioning of critical mechanical plant and equipment including HVAC, cooling, chilled water, pumps, CRAH/CRAC units and associated systems
• Drive commissioning planning, scheduling, sequencing, and tag management
• Lead technical validation workshops and system completion planning sessions
• Ensure strict adherence to safety systems including PTW, SSOW, and LOTO
• Manage OFCI / CFCI vendor and contractor interfaces across complex delivery environments
• Develop and review commissioning documentation, test scripts, method statements, and procedures
• Oversee equipment start‑up, pre‑functional checks, functional testing, performance testing, and integrated systems testing
• Manage punch lists, defect resolution, and structured close‑out processes
• Support QA/QC teams to ensure quality‑led commissioning delivery and minimal rework
• Drive data‑led decision making using completion and commissioning tracking systems
• Identify and mitigate risks across mechanical commissioning execution and system handover
• Provide leadership to commissioning teams and underperforming stakeholders where required

Desired Experience

• Degree in Mechanical Engineering or similar preferred
• 10+ years’ experience in mechanical commissioning and/or engineering within complex infrastructure environments
• Strong background in data centres or mission‑critical facilities highly desirable
• Strong understanding of HVAC, cooling, chilled water and critical mechanical systems
• Experience across industrial sectors such as oil & gas, power, pharma, or large‑scale infrastructure advantageous
• Proven experience leading commissioning teams in a matrix or multi‑stakeholder environment
• Strong understanding of project delivery from planning through commissioning and handover
• Project management experience or certification (or equivalent practical experience)