Principal Mechanical Engineer

Carrington West; City Of London; Hybrid; GBP 76,000 - 83,000; Full time

Job summary

Carrington West is seeking a Principal Mechanical Building Services Engineer in London with hybrid working options. The role leads complex HVAC and Public Health projects, setting technical direction and mentoring teams.

You will drive project delivery, client engagement, and bids while maintaining high standards of quality and regulatory compliance. You will oversee multidisciplinary design teams, influence strategic engineering directions, and contribute to business development in a

Qualifications

• Degree-qualified in mechanical building services engineering.
• Chartered Engineer status or actively working towards chartership with a clear path.
• Extensive experience delivering mechanical building services design projects.
• Strong expertise in HVAC and public health design.
• Proven experience leading multidisciplinary design teams and managing project delivery.
• Strong commercial awareness with budgets, programmes and client expectations.

Responsibilities

• Leading the design and delivery of complex mechanical building services projects, including HVAC and Public Health systems.
• Acting as the technical authority on projects, providing oversight and quality assurance across design teams.
• Delivering innovative and commercially focused engineering solutions that meet client and regulatory requirements.
• Producing and reviewing technical deliverables including calculations, reports and design documentation.
• Managing client relationships and acting as a key contact throughout project lifecycles.
• Leading coordination with architects, contractors, and multidisciplinary teams.

Skills

HVAC design

Public Health design

Team leadership

Client management

Bid management

Technical governance

Education

Degree in Mechanical Building Services Engineering

Chartered Engineer (CEng) or working towards

Tools

Revit

AutoCAD

Navisworks

Job description

Principal Mechanical Building Services Engineer

Location: London (Hybrid Working Available)
Rate: £55 to £60 per hour (Depending on Experience)

Are you an accomplished Mechanical Building Services Engineer looking to step into a Principal-level position where you can lead complex projects, influence technical strategy, and play a key role in developing both teams and client relationships? This is an excellent opportunity to join a highly respected multidisciplinary consultancy delivering technically challenging projects across advanced manufacturing, life sciences, infrastructure, energy, defence, and highly regulated environments. As a Principal Mechanical Engineer, you will take a leading role in project delivery, provide technical direction, support business development, and help shape the future growth of the mechanical engineering team.

Why Apply?

This role goes beyond technical design delivery. You'll act as a trusted advisor to clients, lead multidisciplinary project teams, and provide strategic engineering input on major projects from concept through to completion. You'll have the opportunity to influence project outcomes, support the development of future talent, contribute to winning new work, and help drive technical excellence across the business, all within a collaborative environment that values innovation, leadership, and professional growth.

What You'll Be Doing

• Leading the design and delivery of complex mechanical building services projects, including HVAC and Public Health systems
• Acting as the technical authority on projects, providing oversight, guidance, and quality assurance across design teams
• Delivering innovative and commercially focused engineering solutions that meet client, regulatory, and project requirements
• Producing and reviewing technical deliverables including calculations, reports, specifications, and design documentation
• Managing client relationships and acting as a key point of contact throughout project lifecycles
• Leading coordination with architects, contractors, specialist consultants, and multidisciplinary engineering teams
• Supporting project planning, resource management, and delivery programmes
• Identifying opportunities for business development and contributing to bids, tenders, and proposals

Leadership & Strategic Responsibilities

• Lead, mentor, and develop Engineers, Graduates, and Technicians across multiple projects
• Provide technical leadership and governance across design teams
• Support recruitment, team development, and succession planning initiatives
• Drive quality assurance, innovation, and continuous improvement within engineering delivery
• Contribute to business growth through client engagement, networking, and new business opportunities
• Champion best practice and technical excellence across the organisation

What You'll Bring

• Degree-qualified in Mechanical Building Services Engineering or a related discipline
• Chartered Engineer (CEng) status, or actively working towards Chartership with a demonstrable pathway to completion
• Extensive experience delivering Mechanical Building Services design projects across complex building environments
• Strong expertise in HVAC and Public Health design
• Proven experience leading multidisciplinary design teams and managing project delivery
• Strong commercial awareness with experience managing project budgets, programmes, and client expectations
• Demonstrable experience managing and developing client relationships
• Experience leading bids, tenders, fee proposals, and work-winning activities

Desirable Experience

• Chartered Engineer (CEng) status through CIBSE, IMechE, or equivalent professional institution
• Team leadership, line management, and resource planning experience
• IES Thermal Modelling
• Revit / AutoCAD / Navisworks
• Experience acting as Project Lead or Discipline Lead on major multidisciplinary schemes
• Strong business development and client account management experience

What's In It For You?

• Opportunity to lead high-profile, technically complex projects
• Significant influence over project delivery and technical direction
• Exposure to cutting-edge engineering solutions across multiple sectors
• Leadership opportunities with genuine scope for career progression
• Involvement in business development and strategic growth initiatives
• Collaborative working environment with highly experienced industry professionals
• Hybrid and flexible working arrangements
• Continued professional development and support for leadership growth

Ready for Your Next Move?

If you're a senior-level Mechanical Building Services Engineer ready to step into a Principal position, or an existing Principal Engineer looking for your next challenge, this is an excellent opportunity to take a leading role on some of the UK's most prestigious and technically demanding projects.