Job Description:

Senior / Principal Mechanical Engineer
London 
£55,000 – £70,000 + Benefits

A well-established multi-disciplinary building services consultancy is seeking an experienced Senior / Principal Mechanical Engineer to join its growing engineering team. This is an excellent opportunity for a technically strong and commercially aware engineer to play a key role in the delivery of high-profile projects across multiple sectors.

The consultancy is recognised for delivering innovative and sustainable design solutions across commercial, residential, healthcare, education, mixed-use, and infrastructure developments. Due to continued growth and an expanding project pipeline, the business is looking to appoint a motivated engineer capable of leading projects, mentoring junior staff, and working closely with clients and multidisciplinary teams.

The Role

The successful candidate will be responsible for leading the mechanical design and delivery of building services projects from concept through to completion. The position offers the opportunity to take ownership of projects, contribute to business development activities, and support the strategic growth of the mechanical engineering team.

Key Responsibilities

• Lead the mechanical design of building services systems including HVAC, public health, and sustainable solutions
• Manage projects through all RIBA stages
• Coordinate with internal multidisciplinary teams and external stakeholders
• Produce and review technical specifications, reports, and detailed design calculations
• Attend client and design team meetings
• Mentor and support junior engineers and technicians
• Ensure projects are delivered on time and within budget
• Contribute to sustainable and low-carbon design strategies

Requirements

• Degree qualified in Mechanical Engineering or Building Services Engineering
• Approximately 6–10 years’ experience within a building services consultancy environment
• Strong technical understanding of mechanical building services design
• Experience leading projects and liaising directly with clients
• Proficiency with industry-standard software including Revit, IES, Hevacomp, or similar
• Knowledge of UK building regulations and industry standards
• Chartered status or working towards chartership would be advantageous

Salary & Benefits

• £55,000 – £70,000 depending on experience
• Clear progression pathway to Associate level
• Exposure to prestigious and technically challenging projects
• Collaborative and supportive working environment
• Ongoing professional development and training
• Competitive benefits package

If you are interested in this Senior/Principal Mechanical Engineer, please contact