Principal Mechanical Design Engineer – Workplace Projects

Location: London
Type: Full-time | Hybrid Working Available
Salary: Up to £70,000 + Package 

Are you a Principal Mechanical Design Engineer ready to take ownership of exciting workplace fit-out projects across London and beyond My client, a respected and forward-thinking building services consultancy, is looking for a talented individual to join their growing team of engineers, designers, and technical specialists.

About the Role

As a Principal Mechanical Design Engineer, you’ll lead the mechanical design process on high-profile commercial projects, delivering innovative and sustainable solutions that meet client expectations and industry standards. You’ll collaborate with a multidisciplinary team and have the opportunity to work across all RIBA stages.

This is a fantastic opportunity for a Principal Mechanical Design Engineer who thrives in a fast-paced, client-focused environment and is passionate about technical excellence and sustainability.

Key Responsibilities

• Lead mechanical design on workplace fit-out projects
• Deliver sustainable and technically sound solutions
• Manage project timelines, resources, and budgets
• Represent my client in client meetings and presentations
• Mentor junior engineers and contribute to team development
• Ensure all work aligns with company procedures and quality standards
• Actively participate in training and industry events to stay ahead

What We’re Looking For

• Degree-qualified in Mechanical Engineering (BEng, BSc, or MEng)
• Chartered or working towards chartership (CIBSE, IMechE, IET)
• Proven experience as a Principal Mechanical Design Engineer in building services
• Strong fit-out experience (workplace preferred, retail acceptable)
• Proficiency in Hevacomp or IES software
• Excellent communication and leadership skills

Why Join My Client

• Work on prestigious projects across London and internationally
• Be part of a diverse and inclusive team
• Hybrid working options and flexible hours
• Career development and chartership support
• A culture that values innovation, collaboration, and sustainability

If you're a Principal Mechanical Design Engineer looking to make a real impact, this is your chance to join a consultancy that’s shaping the future of workplace design. Apply today and take the next step in your career.

So what's next Call, email, WhatsApp or meet me for a coffee. Lets have a confidential conversation and plan your next move in your career.