Principal Mechanical Engineer – Manchester (Office-Based)

Salary: Up to £65,000 base + £3,000 car allowance

About the Opportunity

Our client, a dynamic and expanding multi-disciplinary consultancy, is seeking a Principal Mechanical Engineer to join their growing Building Services team in Manchester. This is an outstanding opportunity for an experienced engineer to play a pivotal role in delivering innovative, sustainable, and technically excellent designs across a diverse range of projects.

Located close to Manchester’s vibrant Spinningfields district, the office provides a collaborative and inspiring environment. The team works on landmark developments across the UK and internationally — from high-performance commercial and healthcare buildings to cutting-edge residential and retail schemes.

The Role

As Principal Mechanical Engineer, you’ll take the lead on multidisciplinary projects, oversee design quality, and act as a trusted point of contact for clients and stakeholders. You’ll also mentor junior engineers, shape best practices, and help drive innovation within the team.

Key Responsibilities

• Lead mechanical design delivery from concept to completion across multiple sectors
• Manage client and design team relationships, ensuring smooth project coordination
• Oversee technical standards, compliance, and quality control
• Provide technical guidance, mentoring, and team leadership
• Support business development and represent the company at industry events
• Contribute to the recruitment and professional growth of engineering talent

About You

• Degree-qualified in Mechanical Engineering or a related discipline
• Extensive experience in mechanical building services design
• Strong technical skills using MagiCAD, Relux, Amtech/EOM, AutoCAD, and Revit
• Excellent communicator, confident engaging with clients and design teams
• Chartered Engineer or actively working towards chartership
• Collaborative and proactive approach, with a passion for sustainable design
• Able to influence design outcomes and lead multidisciplinary project teams

What’s on Offer

• Competitive base salary up to £65,000 + £3,000 car allowance
• Exciting career prospects in an expanding Manchester office
• 26 days’ holiday (rising to 31 with service) plus bank holidays
• Ongoing professional development and chartership support
• Mentoring from leading industry experts
• Opportunity to work on prestigious, high-profile projects
• A friendly, supportive, and forward-thinking team culture



This is an exciting time to join a growing consultancy that values technical excellence, collaboration, and career development. If you’re ready to take your next step as a Principal Mechanical Engineer, we’d love to hear from you.