Principal Mechanical Engineer

JR United Kingdom; York; On-site; GBP 50,000 - 80,000; Full time

Job summary

A leading M&E business in Edinburgh is seeking Senior and Principal Mechanical Design Engineers to drive growth and support landmark projects in HVAC and energy systems. Join a rapidly expanding team dedicated to high-quality design and technical excellence.

Benefits

Clear career progression and leadership development

Opportunity to work on landmark projects across the UK and Europe

Office-based role with plans for team expansion

Qualifications

• Experience in HVAC and renewable energy systems design.
• Proven record leading design projects and mentoring junior engineers.

Responsibilities

• Design and specify HVAC, heating, and cooling systems.
• Collaborate and ensure compliance in design solutions.
• Mentor team members and support project delivery.

Skills

Mechanical building services design

Collaboration with multidisciplinary teams

Project management

Education

Relevant engineering degree

Job description

Senior & Principal Mechanical Design Engineers – Edinburgh

A rapidly growing M&E business based in Edinburgh is expanding its mechanical design team. Specialising in data centres, pharma, education, healthcare, and commercial building services, they design HVAC, heat pumps, energy centres, plant rooms, and district heating systems for high-profile clients across the UK and Europe. With headline-making projects such as Centre Parcs resorts, sports stadiums, hotels, and movie studios, this ambitious business is experiencing rapid growth and international expansion, targeting a £400 million turnover by 2030 and looking to double the size of its design team to support this trajectory.

The Senior & Principal Mechanical Design Engineers Opportunity

We are recruiting multiple Mechanical Design Engineers at Senior and Principal levels for a permanent, full-time, office-based role in Edinburgh.

• Senior Engineer: Take ownership of your own projects from concept to completion, providing guidance and technical support to juniors and graduates, while ensuring high-quality design standards.
• Principal Engineer: Lead complex projects with full responsibility, mentor and manage team members across all levels, build strong client relationships, and drive business growth and project success.

Key Responsibilities

• Design and specify mechanical building services including HVAC, heating and cooling, renewable energy systems, plant rooms, and Building Management Systems.
• Produce detailed mechanical designs, layouts, drawings, and reports.
• Collaborate with multidisciplinary teams to deliver compliant, sustainable solutions.
• Support junior engineers and contribute to team growth.

What We Offer

• Principal: Up to £80,000
• Permanent, office-based role in Edinburgh (5 days/week)
• Opportunity to work on landmark projects across the UK and Europe
• Clear career progression and leadership development
• Join a rapidly growing team currently 18 strong, with plans to double
• Be part of an ambitious business driving rapid growth and international expansion

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Created on 24/06/2025 by JR United Kingdom