Build Your Career With Dominic O'Connor Ltd
We're always looking for skilled mechanical engineers, project managers and apprentices to join our growing decarbonisation and mechanical services team.
Work On Projects That Matter
Real Variety
From hospital theatres to school retrofits to industrial plant — no two projects are the same.
Growing Sector
Join a team at the centre of Ireland's decarbonisation and public sector retrofit programmes.
Training & Development
Structured apprenticeships and ongoing technical training across HVAC, heat pumps and BMS controls.
Nationwide Work
Projects across Ireland, from Galway to Dublin, Cork to Sligo, with experienced site supervision.
Roles We're Hiring For
Mechanical Site Supervisor
Oversee mechanical installation on live construction sites, coordinating with main contractors and subcontract trades.
HVAC Installation Engineer
Install heating, ventilation and air conditioning systems on commercial, educational and healthcare projects.
Heat Pump & Decarbonisation Technician
Install and commission air source heat pump systems as part of school and public building energy retrofits.
Mechanical Apprentice
Start your career with structured on-the-job training and support towards a recognised mechanical trade qualification.
Don't see the right role? We're always happy to hear from good people — send your CV and we'll keep it on file.