Data Centres

Mechanical Commissioning Engineer

Dublin, Ireland · Permanent / Full Time

  • Dublin, Ireland
  • Permanent / Full Time
  • Data Centres
  • Commissioning

The Role

Mechanical CX Engineer required to join a Tier 1 Contractor based in Dublin on a large Hyperscale DC project. Excellent package on offer. Apply Now!!!

Mechanical Commissioning Engineer - Hyperscale Data Centre (Dublin)

  • Work with a leading Tier 1 contractor on a major hyperscale data centre.

  • Gain exposure to complex mechanical systems and large-scale commissioning programmes.

  • Strong Irish and European data centre project pipeline.

  • Competitive salary and benefits package.

  • Excellent career progression into Senior Commissioning Engineer, Commissioning Manager or regional commissioning roles.

  • Work alongside experienced OEM, commissioning and client teams.


About the Opportunity
Evergreen Talent Group is partnering with a leading Tier 1 contractor to appoint an experienced Mechanical Commissioning Engineer for a major hyperscale data centre project in Dublin.

This role will support the testing, commissioning, balancing and handover of critical mechanical systems, working closely with commissioning management, construction teams, vendors and client stakeholders to ensure systems are delivered safely, efficiently and in line with project requirements.

Key Tasks of the Mechanical Commissioning Engineer

  • Carry out and coordinate pre-commissioning and commissioning activities.

  • Review commissioning procedures, test scripts, RAMS and technical documentation.

  • Support functional testing, performance testing and integrated systems testing.

  • Assist with commissioning of chilled water systems, HVAC, CRAH/CRAC units, pumps, AHUs, ventilation and associated controls.

  • Support flushing, pressure testing, balancing and system verification activities.

  • Coordinate OEM and specialist vendor attendance for commissioning.

  • Track defects, punch-list items and commissioning actions through to closure.

  • Verify system readiness prior to client witnessing and final testing.

  • Support interfaces with BMS, controls and associated electrical systems.

  • Complete commissioning check sheets, test records and system documentation.

  • Attend daily commissioning meetings and provide progress updates.

  • Assist with final handover, O&M documentation and commissioning close-out.

Key Responsibilities of the Mechanical Commissioning Engineer

  • Support the delivery of mechanical commissioning activities across the project.

  • Ensure mechanical systems are tested, commissioned and handed over in accordance with project specifications.

  • Coordinate closely with construction, QA/QC, engineering and commissioning teams.

  • Support system readiness reviews and commissioning sequencing.

  • Assist with identifying and resolving technical issues during testing and commissioning.

  • Ensure commissioning activities are completed in line with agreed programme milestones.

  • Maintain a strong focus on safety, quality, documentation and system performance.

  • Support client, consultant and third-party witnessing throughout the commissioning process.


Experience & Requirements of the Mechanical Commissioning Engineer

  • Mechanical engineering qualification or equivalent technical background.

  • Previous experience in mechanical commissioning on large-scale construction or engineering projects.

  • Data Centre / Mission Critical experience highly desirable.

  • Strong understanding of HVAC, chilled water, ventilation and mechanical services.

  • Experience with system flushing, pressure testing, balancing and functional testing.

  • Knowledge of BMS interfaces and integrated systems testing advantageous.

  • Strong technical troubleshooting and problem-solving ability.

  • Good communication, reporting and coordination skills.

  • Ability to work effectively with contractors, vendors, consultants and client teams.


For more information on this Mechanical Commissioning Engineer opportunity or other Mechanical Commissioning Engineer / Electrical Commissioning Engineer opportunities across Ireland, UK or Europe. Please reach out to a member of Evergreen Talent Group for a confidential chat.

Posted 20 October 2026. Closes 19 November 2026. Reference 1743730.

More about Data Centres recruitment

Let’s build the future together.

Partner with Evergreen Talent Group and secure the talent that drives your projects forward.