Principal Mechanical Design Engineer

Description

The opportunity has arisen to join an industry leader in UK’s & Ireland’s commercial decarbonisation sector. At Alternative Heat, we are at the forefront of innovative, sustainable building solutions. As a leader in the design, development, and delivery of offsite-prefabricated energy systems, we take pride in offering groundbreaking decarbonisation solutions throughout Ireland, UK and Europe.

Application Deadline

16 April 2026

Department

Design

Location

Alternative Heat Head Office

Team Overview

The Design department is responsible for developing innovative, practical, and fully coordinated mechanical and electrical services solutions tailored to each project. Working closely with clients, project teams, and the BIM department, the design team transforms concepts into detailed, build-ready technical designs that meet regulatory standards, client specifications, and sustainability goals. Their work underpins the technical accuracy and efficiency of our installations, ensuring seamless integration from planning through to construction.

Role Overview

As a Principal Mechanical Design Engineer, you will play a key role within our growing Design Team, based at our Banbridge Head Office. You’ll take ownership of mechanical designs from concept through to commissioning, working closely with fabrication, project management, and commissioning teams to ensure seamless delivery. You’ll be involved in the design of commercial decarbonising solutions across a diverse portfolio of sectors, while also mentoring junior engineers and helping to shape best practice within the team.

Job Title

Principal Mechanical Design Engineer

Location

Banbridge – Head Office

Hours

Monday-Thursday 8am-5pm and Friday 8am-3pm

Salary

Competitive Depending on Experience

Responsible to

Head Of Design

What You’ll be Doing

• Managing the design delivery for decarbonising a range of commercial projects.
• Delivering mechanical designs including schematics, calculations, plant selections, bills of materials, and project specifications.
• Developing and validating BMS control strategies, from design through to on-site verification.

How to Apply

To apply please click on the link provided or reach out to Nicola Hyland (Senior Talent Acquisition Specialist) - Nicolahyland@alternativeheat.co.uk

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