Senior Mechanical Design Engineer; Building Services

Are you ready to elevate your career with a consultancy that's shaping the future of the built environment? Caldwell Consulting, a renowned name in building services engineering, is seeking a Senior Mechanical Design Engineer to join their dynamic Central London team. With a portfolio that spans high‑profile commercial, residential, mixed‑use developments, hotels, and student accommodation, this is your chance to work on projects that truly make an impact.

Caldwell Consulting is an independent, full‑service engineering firm delivering innovative mechanical, electrical, and public health solutions across the UK and Ireland. Their work enhances lives through smart, sustainable design – partnering with industry leaders to create spaces that inspire.

• Premier Inn Wembley Arena and Hub by Premier Inn King's Cross
• Brentford Lock West and Palace View, Lambeth residential schemes
• The Cursitor Building, Yalding House, and 73 Great Peter Street in London
• Mixed‑use developments like Terrace Mount Bournemouth and Premier Inn & Class A Office Maidenhead

As a Senior Mechanical Design Engineer, you'll lead the design and delivery of mechanical systems for landmark developments. You'll collaborate with architects, clients, and multidisciplinary teams to produce high‑quality, sustainable solutions that meet and exceed expectations.

• Designing HVAC, heating, cooling, and ventilation systems for commercial and residential buildings
• Managing project timelines, budgets, and client relationships
• Mentoring junior engineers and contributing to technical excellence
• Driving innovation and sustainability across all stages of design

• Proven experience in mechanical building services design (ideally 5+ years)
• Strong technical knowledge of HVAC systems and UK building regulations
• Proficiency in design tools such as AutoCAD, Revit, and IES
• A degree in Mechanical Engineering or Building Services Engineering
• Passion for delivering outstanding engineering solutions

• A competitive salary up to £70,000 DOE
• The chance to work on career‑defining projects in Central London
• A collaborative, forward‑thinking team environment
• Real progression opportunities and support for professional development
• Exposure to a wide variety of sectors and design challenges

If you’re interested in this role, click “apply now” to forward an up‑to‑date copy of your CV, or call Adam on . If this job isn’t quite right for you but you are looking for a new position, please contact us for a confidential discussion on your career.