Senior Mechanical Engineer

Dornan Engineering Services Ltd; Dublin; On-site; EUR 80,000 - 120,000; Full time

Job summary

Dornan Engineering Group is seeking a Senior Mechanical Engineer to join our Dublin-based data centre division. The role reports to the engineering lead on site and focuses on delivering high-value mechanical building services across projects in Europe, the UK and Ireland.

You will leverage extensive experience in large-scale construction, HVAC, piping and plant systems, coordinating design through procurement, installation, testing and commissioning while maintaining programme targets and

Qualifications

• Degree in Mechanical Engineering, Building Services Engineering, or a related engineering discipline.
• Experience delivering mechanical packages on major construction projects, ideally data centres or complex environments.
• Understanding of mechanical design, commissioning, and QA in building services.

Responsibilities

• Lead mechanical design and delivery across data centre projects on site.
• Coordinate design, procurement, installation, testing and commissioning activities.
• Mentor junior engineers and support project delivery with stakeholders.

Skills

Mechanical engineering

HVAC

Project coordination

Mentoring juniors

Education

Bachelor’s degree in Mechanical or Building Services Engineering

Job description

Job Title

Dornan Engineering Group is a leading international engineering contractor delivering high-value projects across Europe, UK & Ireland. Based in Dublin, this is an exciting opportunity to join our growing data centre division as a senior mechanical engineer, reporting into our engineering lead on site.

Your Experience

Extensive experience in mechanical engineering within the construction industry, preferably on large-scale Data Centre, Pharmaceutical, Industrial, or Mission Critical projects. Strong understanding of mechanical building services systems including HVAC, chilled water, heating, ventilation, pipework, and associated plant. Proven ability to coordinate design, procurement, installation, testing, and commissioning activities through all phases of project delivery. Experience working within fast-paced project environments while managing competing priorities and maintaining programme targets. Sound commercial awareness with an understanding of project budgets, change management, and cost control. Strong knowledge of Health, Safety, Quality, and Environmental standards, with a commitment to promoting a positive safety culture. Excellent communication and stakeholder management skills, with experience coordinating across clients, consultants, subcontractors, and multidisciplinary project teams. Demonstrated ability to mentor and develop junior engineers, supporting team growth and high-performance project delivery.

Your Qualifications

Degree in Mechanical Engineering, Building Services Engineering, or a related engineering discipline. Previous experience delivering mechanical packages on major construction projects, ideally within the Data Centre sector or other technically complex environments. Strong understanding of mechanical design principles, commissioning processes, and quality assurance requirements. Proficiency in reviewing technical drawings, specifications, and contractor submittals. Knowledge of industry standards, regulations, and best practices relevant to Data Centre and Building Services projects. Membership of a recognised professional institution such as Engineers Ireland, CIBSE, IMechE, or working towards Chartered Engineer status would be advantageous.

Dornan Strava Club

Employees can take part in fitness challenges, build connections across the business, and contribute to monthly charitable giving initiatives.

Be Yourself

We want everyone at Dornan to feel welcome, valued, and supported. By embracing different backgrounds, experiences, and perspectives, we create an environment where people can be themselves, grow their careers, and thrive.