Principal Mechanical Design Engineer

Principal Mechanical Design Engineer - Dublin (Hybrid)

We are currently seeking an experienced Principal Mechanical Design Engineer to join a growing team delivering innovative low-carbon and decarbonisation solutions across Ireland, the UK, and Europe.

This is an excellent opportunity for a senior-level engineer with a strong background in M&E Building Services Design to take on a leadership role within a forward-thinking organisation at the forefront of sustainable energy solutions.

The Role
Based in Dublin, you will lead mechanical design projects from concept through to commissioning, working across a wide range of commercial and public sector developments.

You will collaborate closely with multidisciplinary teams and play a key role in mentoring engineers while helping shape best practice within the design function.

Key Responsibilities

• Lead the delivery of mechanical design projects within the building services sector
• Produce detailed designs including schematics, calculations, plant selection, and specifications
• Develop and review BMS control strategies
• Conduct site surveys, feasibility studies, and technical assessments
• Coordinate with project, fabrication, and commissioning teams
• Ensure compliance with all relevant standards and regulations
• Liaise with clients, contractors, and suppliers
• Support and mentor junior engineers

Requirements

• Minimum 5+ years' experience in M&E / Building Services Design
• Degree in Mechanical Engineering, Building Services, or related discipline
• Chartered Engineer (or working towards) preferred
• Strong experience in heating systems (LTHW, MTHW, steam)
• Proven ability to manage projects and deliver high-quality design solutions
• Excellent communication and organisational skills

Desirable Experience

• Low-carbon technologies and decarbonisation projects
• Heat pumps, district heating, or renewable systems
• AutoCAD, Revit, and BIM tools
• Energy modelling or simulation software

Salary & Benefits

• €80,000 - €90,000 (depending on experience)
• Pension and life assurance
• Health and wellbeing supports
• Ongoing training and career progression
• Strong team culture with regular social events
• Onsite parking and additional perks

Working Pattern

• Monday to Thursday: 8:00am - 5:00pm
• Friday: 8:00am - 3:00pm
• Hybrid working available (1-2 days from home once established in the role)