Mechanical Commissioning Engineer – Data Centre Construction

Job title: Mechanical Commissioning Engineer – Data Centre Construction
Location: Fredericia, Denmark
Company: Irish Main Contractor Delivering Major European Data Centre Projects
Package: €65,000 to €85,000 rotation, accommodation, flights and package

The Company

This established Irish main contractor has become one of the most recognised names in European data centre construction, delivering large-scale hyperscale and mission-critical facilities across Denmark, Sweden, Germany, Finland and the Netherlands.

With a strong reputation for technical delivery, commissioning excellence and long-term project pipelines, they continue to secure some of the largest data centre projects currently under construction in Europe. Their commissioning teams play a critical role in successful project delivery, working closely with clients, vendors and specialist subcontractors from installation through to handover.

The Role: Mechanical Commissioning Engineer

Based on a major data centre project in Fredericia, Denmark, the Mechanical Commissioning Engineer will support the commissioning and handover of complex mechanical building services systems.

Working alongside the Commissioning Lead and wider project team, you will be involved throughout the commissioning process, from pre-commissioning and testing through to integrated systems testing and client handover.

This is a site-based Mechanical Commissioning Engineer role offering excellent exposure to large-scale mission-critical infrastructure projects while working with experienced commissioning professionals.

Must Have Requirements

• Must have experience as a Mechanical Commissioning Engineer, Mechanical Engineer or Building Services Engineer on construction projects
• Proven experience required with HVAC, chilled water, ventilation or mechanical building services systems
• Strong understanding of commissioning procedures, testing methodologies and system sequencing
• Experience working with a main contractor, specialist contractor or commissioning provider is required
• Excellent communication and reporting skills

Preferred Experience

• Data centre commissioning experience preferred
• Experience using commissioning software and digital completion systems
• Previous exposure to mission-critical, pharmaceutical or industrial projects beneficial
• Experience coordinating vendors and specialist subcontractors

Nice to Have

• Degree in Mechanical Engineering or Building Services Engineering
• Commissioning certifications
• Previous European project experience
• Knowledge of integrated systems testing processes

Key Responsibilities

• Review IFC drawings, specifications and mechanical technical submittals
• Support commissioning planning and system turnover activities
• Assist with commissioning methodologies, boundaries and system sequencing
• Coordinate commissioning activities with package managers, vendors and subcontractors
• Prepare and review commissioning scripts, check sheets and test documentation
• Witness and verify commissioning activities across mechanical systems
• Carry out system walkdowns, tag walks and inspections
• Maintain commissioning trackers, punch lists and progress reports
• Support mechanical functional performance testing activities
• Track defects and ensure timely close-out of commissioning issues
• Assist with preparation of O&M manuals and handover documentation
• Attend client commissioning meetings and support project reporting
• Ensure all testing activities comply with project procedures and client requirements
• Support inspections, audits and sign-off processes

About You

You are a Mechanical Commissioning Engineer who enjoys being on site and actively involved in bringing complex systems into operation. You understand mechanical commissioning processes, system interfaces and testing procedures, and you take a structured approach to quality and documentation.

You will be comfortable working alongside mechanical contractors, specialist vendors, commissioning managers and client representatives while maintaining a strong focus on programme delivery, quality assurance and successful project handover.

What’s On Offer

Salary: €65,000 to €85,000 DOE

Benefits:

• Accommodation provided
• Flights provided
• Rotation available
• Pension contribution
• Long-term European project pipeline
• Career progression into Senior Commissioning Engineer and Commissioning Lead roles
• Ongoing technical development and training

Why Apply?

This is an opportunity to join one of Europe's busiest data centre delivery teams on a major hyperscale project in Fredericia, Denmark.

You'll gain valuable experience working on technically demanding mechanical systems while being supported by an experienced commissioning team that values quality, collaboration and professional development.

With a strong pipeline of projects across Europe, this role offers excellent long-term career prospects for Mechanical Commissioning Engineers looking to build their experience within the data centre sector.

How to Apply

Call Stephen Nugent on 015314345 or email stephen@breaghrecruitment.com for a confidential discussion.

Why Breagh Recruitment

Breagh Recruitment specialises in the recruitment of Mechanical Commissioning Engineers, Commissioning Managers, Building Services Engineers and Mechanical Project Engineers across Ireland, the UK and mainland Europe.

We work closely with leading main contractors, specialist commissioning providers and mission-critical construction companies delivering data centres, pharmaceutical facilities, industrial plants and large-scale building services projects.

If you're a Mechanical Commissioning Engineer looking for your next opportunity in Denmark or elsewhere across Europe, we'd be happy to discuss current opportunities confidentially.

Related Roles: Mechanical Commissioning Engineer, Commissioning Engineer, Senior Commissioning Engineer, Mechanical Building Services Engineer, Mechanical Project Engineer, Commissioning Manager, Data Centre Engineer