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Location
In office (Dublin)
Visa
Irish employment permits in 12 months: 11

Confirmed on the employer's own hiring board on Nov 14, 2026. First seen by Alion on Sep 30, 2026. Mercury Engineering scores B on the Alion truth index.

Overview
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Profile match
Mercury Engineering is a major European engineering and construction contractor headquartered in Dublin, Ireland. Specializing in the design, construction, and management of complex built environments, the company provides integrated mechanical, electrical, fire protection, and data technology services. Its core operations serve world-leading corporations across high-growth sectors, including hyperscale data centres, pharmaceutical and life science facilities, semiconductor manufacturing plants, and advanced commercial infrastructure.

Mercury is the European leader in construction solutions.

We build and manage complex engineering & construction projects for the world’s leading corporations. Our solutions help deliver technologies and life changing advancements that connect people, communities, and businesses, giving them the power to achieve incredible things. Our people have the courage to be innovative. Their determination and sharp focus enable us to deliver with certainty, time and time again.

We deliver our clients’ visions through leading edge construction solutions across multiple sectors, including Enterprise Data Centres, Advanced Technology & Life Sciences, Hyperscale Data Centres, Fire Protection.

At Mercury, it is our duty to encourage and back our people to realise their vision of themselves. We place them at the heart of what we do, providing challenging opportunities to develop within a great team in a supportive environment that allows them to reach their full potential.

Key Responsibilities of the Role:

  • Carry out the installation, maintenance, and repair of sprinkler systems.
  • Service fire pumps and associated drivers.
  • Troubleshoot faults within Fire Water Pump Rooms.
  • Drain and refill sprinkler systems safely and efficiently.
  • Operate fire pumps and associated fire alarm interfaces.
  • Interpret and work from sprinkler system drawings and specifications.
  • Lead maintenance and installation activities when required and work effectively on own initiative.
  • Liaise with clients and maintain positive working relationships on site.
  • Ensure all works are completed in accordance with LPC and FM sprinkler standards and regulations.
  • Travel to various project and client sites as required.
  • Participate in out-of-hours works when necessary to support operational requirements.

Essential Criteria for the Role:

  • Proven experience as a Sprinkler Pipe Fitter / Fire Protection Maintenance Technician.
  • Strong knowledge of all types of sprinkler systems.
  • Experience servicing fire pumps and associated equipment.
  • Demonstrated troubleshooting and fault-finding experience within Fire Water Pump Rooms.
  • Ability to work independently and take ownership of tasks.
  • Ability to work effectively under pressure and meet deadlines.
  • Excellent communication and interpersonal skills.
  • Good understanding of LPC and FM sprinkler rules and standards.
  • National Craft Certificate or equivalent trade qualification.
  • Full clean driver's licence.
  • Safe Pass and Manual Handling certification.
  • Flexibility to travel and work outside normal working hours when required.

Desirable Criteria:

  • Previous experience in a fire protection maintenance environment.
  • Experience leading small teams or acting as a lead fitter.
  • Knowledge of fire alarm interfaces associated with sprinkler systems.
  • Experience working across multiple client sites and live operational environments

Mercury is an equal opportunities employer .

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