Data Centre Mechanical Commissioning Engineer

JAM Recruitment Ltd; Denmark; On-site; DKK 673,000 - 822,000; Full time

Job summary

JAM Recruitment Ltd is seeking a Mechanical Commissioning Engineer for a major data centre project in Denmark. This hands-on role is on-site and focuses on taking complex mechanical infrastructure from installation through testing, commissioning and handover.

You will work in a fast-paced, international environment with 5+ years of project experience, ensuring robust commissioning plans and close collaboration with package engineers, vendors and site teams. Permanent position.

Qualifications

• Experience with mechanical commissioning on complex construction projects.
• Knowledge of HVAC, chilled water, LTHW, ventilation and pressurisation systems.
• Familiarity with commissioning processes, sequencing and system interfaces.

Responsibilities

• Deliver mechanical pre-commissioning and commissioning activities.
• Review drawings, specifications and submittals.
• Support commissioning plans, methodologies and sequencing.
• Coordinate with engineers, planners, vendors and site teams.
• Prepare and review test packs and checklists.
• Witness functional testing and verify system performance.
• Lead walkdowns, tag walks and inspections.
• Track progress, snags and close‑out; support handover and client training.

Skills

HVAC systems

Chilled water

LTHW

Site-based work

Commissioning

Job description

Mechanical Commissioning Engineer - Data Centre

Denmark | Permanent | Up to €100,000

A major international engineering contractor is looking for a Mechanical Commissioning Engineer to join a large-scale data centre project in Denmark.

This is a hands‑on commissioning role for someone who wants to be on site, close to the systems and involved in taking complex mechanical infrastructure from installation through testing, commissioning and handover.

With 5+ years of secured project work, this is a genuine long-term opportunity rather than a short-term project.

What You'll Be Doing

• Deliver mechanical pre‑commissioning and commissioning activities
• Review IFC drawings, specifications and technical submittals
• Support commissioning plans, methodologies and sequencing
• Coordinate with package engineers, planners, vendors and site teams
• Prepare and review checklists, scripts and test packs
• Witness functional testing and verify system performance
• Lead/support walkdowns, tag walks and inspections
• Track commissioning progress, snags and close‑out
• Support system handover, O&M documentation and client training
• Identify issues early and escalation commissioning risks

What We're Looking For

• Mechanical commissioning experience within complex construction projects
• Strong knowledge of HVAC, chilled water, LTHW, ventilation and pressurisation systems
• Understanding of commissioning processes, sequencing and system interfaces
• Comfortable working in a fast‑paced, site‑based environment
• Strong communication skills and the ability to work across multiple disciplines
• A practical, hands‑on approach with strong attention to detail
• Data centre experience is a major advantage, but strong mechanical commissioning experience from other mission‑critical or technically complex environments will be considered

Why Apply?

• Up to €100,000 salary
• Permanent position
• Major data centre project in Denmark
• 5+ years of secured work
• International project environment
• Career development and progression opportunities
• Opportunity to work on technically advanced projects
• Strong overall package