Job Details

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

Leadership & Strategic Responsibilities
As a Principal Engineer, you will play a significant leadership role within the business and help shape the future of the team.
You'll have the opportunity to:
andmiddot;Lead, mentor, and develop Engineers, Graduates, and Technicians across multiple projects
andmiddot;Provide technical leadership and governance across design teams
andmiddot;Support recruitment, team development, and succession planning initiatives
andmiddot;Drive quality assurance, innovation, and continuous improvement within engineering delivery
andmiddot;Contribute to business growth through client engagement, networking, and new business opportunities
andmiddot;Champion best practice and technical excellence across the organisation

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

Desirable Experience
Experience with any of the following would be highly advantageous:
andmiddot;Chartered Engineer (CEng) status through CIBSE, IMechE, or equivalent professional institution
andmiddot;Team leadership, line management, and resource planning experience
andmiddot;IES Thermal Modelling
andmiddot;Revit / AutoCAD / Navisworks
andmiddot;Experience acting as Project Lead or Discipline Lead on major multidisciplinary schemes
andmiddot;Strong business development and client account management experience

What's In It For You?
andmiddot;Opportunity to lead high-profile, technically complex projects
andmiddot;Significant influence over project delivery and technical direction
andmiddot;Exposure to cutting-edge engineering solutions across multiple sectors
andmiddot;Leadership opportunities with genuine scope for career progression
andmiddot;Involvement in business development and strategic growth initiatives
andmiddot;Collaborative working environment with highly experienced industry professionals
andmiddot;Hybrid and flexible working arrangements
andmiddot;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.
Apply today to become part of a forward-thinking engineering team delivering innovative, sustainable, and high-quality solutions across a diverse portfolio of major developments.