Principal Mechanical Design Engineer in City of Westminster

Principal Mechanical MEP Design Engineer

Location: London
Salary: £85,000
Progression: Associate / Director-level opportunities

Lead mechanical design on challenging, bespoke projects within a growing London consultancy, with the opportunity to develop a team, influence project delivery and progress into senior leadership.

We are working with a London-based building services consultancy looking to appoint a Principal Mechanical Design Engineer. This is an opportunity for an experienced engineer to take technical ownership of complex projects, support junior team members and play a key role in the continued development of the business.

The Role

• Lead mechanical building services design across a range of complex, one-off projects.

• Take responsibility for projects from concept through to detailed design and delivery.

• Provide technical leadership and oversee design quality.

• Manage, mentor and develop engineers within the team.

• Coordinate mechanical designs with electrical, structural and architectural disciplines.

• Attend client meetings and develop strong working relationships.

• Support project delivery, technical reviews and design coordination.

• Contribute to the development of engineering standards and working practices.

• Help drive the growth and technical capability of the consultancy.

Requirements

• Extensive experience in mechanical building services design.

• Strong knowledge of HVAC, ventilation, heating and cooling systems.

• Experience leading projects and taking ownership of technical delivery.

• Ability to manage, mentor and support other engineers.

• Strong understanding of relevant building services standards and regulations.

• Confident working with clients and multidisciplinary project teams.

• Experience delivering technically challenging or bespoke projects.

• Degree-qualified in Mechanical Engineering or Building Services Engineering, or equivalent experience.

• Chartered status, or working towards chartership, would be advantageous.

The Opportunity

• Salary of £85,000.

• A clear progression route into Associate and potentially Director-level leadership.

• The opportunity to lead and develop a small team.

• Exposure to challenging, bespoke building services projects.

• A senior role offering genuine influence over technical delivery and business development.

Please note: Candidates must already have the right to work in the UK. Visa sponsorship cannot be offered.