Principal Mechanical & Electrical Design Engineers

  • 03 Mar 2026
  • Ireland
  • Permanent / Full Time
A well-established, fast-growing decarbonisation and energy systems specialist is expanding its Dublin Design team and is hiring both a Principal Mechanical Design Engineer and a Principal Electrical Design Engineer.
  
This is a key hire phase for the business. They are investing heavily in their Dublin operation and are looking for senior engineers who want real influence - not just another design seat.
  
The Opportunity
You will take ownership of design delivery across large-scale commercial energy centre and low-carbon retrofit projects, working from concept through to build and commissioning.
  
These roles sit in a design & build environment, working closely with fabrication, project management and commissioning teams to ensure solutions are practical, buildable and high-performing.
  
Principal Mechanical Design Engineer
  • Lead mechanical design of LTHW, MTHW, heat pump and chiller-based systems
  • Develop plant schematics, calculations and specifications
  • Support BMS strategy and commissioning
  • Contribute to decarbonisation and energy efficiency solutions
  
Principal Electrical Design Engineer
  • Lead electrical building services design including LV/ELV systems
  • Design power distribution, control systems and integration of renewable technologies
  • Ensure compliance with UK & Irish standards
  • Provide technical leadership across projects
  
Candidate Requirements
  • Degree-qualified and Chartered (or working toward)
  • Minimum of 5 years' experience as a design engineer
  • Strong building services design background
  • Experience in commercial or industrial energy systems
  • Comfortable leading projects and mentoring engineers
  
More details
  • This is an exciting growth stage of the business. Help build and shape the Dublin design team
  • Clear progression into senior leadership as the team expands
  • Delivery-focused environment with real project ownership
  • Exposure to large-scale commercial decarbonisation projects across Ireland and the UK
  
If you’re a senior mechanical or electrical building services engineer looking for influence, progression and the chance to help build out a high-performing team, this is worth a conversation.

Apply Now

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