Principal Mechanical Design Engineer

Company: Build Recruitment
Apply for the Principal Mechanical Design Engineer
Location: Devon
Job Description:

Principal Mechanical Design EngineerHybrid Working (Office & Remote)Up to £60,000 Excellent Benefits PackageFull-Time, Permanent

About the Role We are seeking an experienced and motivated Principal Mechanical Design Engineer to join our growing Building Services consultancy. This is an exciting opportunity for a skilled engineer to take a leading role in the design and delivery of high-quality mechanical building services projects across a diverse portfolio.

Working in a hybrid environment, you will collaborate with multidisciplinary teams, manage project delivery, and provide technical leadership to junior engineers while ensuring projects are delivered to the highest standards.

Key Responsibilities

  • Lead the mechanical design of building services systems including HVAC, heating, ventilation, and public health services.

  • Produce and review detailed engineering designs, calculations, specifications, and technical reports.

  • Manage and coordinate projects from concept through to completion.

  • Provide technical guidance and mentorship to junior engineers and technicians.

  • Liaise with clients, architects, and other stakeholders to ensure project requirements are met.

  • Ensure compliance with relevant regulations, standards, and sustainability targets.

  • Attend design meetings and contribute to project planning and strategy.

Requirements

  • Minimum 7 years’ experience in mechanical design within a Building Services consultancy environment.

  • Degree educated in Mechanical Engineering or a related discipline.

  • Strong knowledge of mechanical building services design and industry standards.

  • Experience delivering projects across sectors such as commercial, residential, healthcare, or education.

  • Proficiency in relevant design software (e.g., AutoCAD, Revit) 

  • Excellent communication and leadership skills.

  • Ability to manage multiple projects and work collaboratively within a team.

What’s on Offer

  • Competitive salary of up to £60,000 depending on experience.

  • Comprehensive benefits package.

  • Hybrid working arrangement for improved work–life balance.

  • Opportunities for professional development and career progression.

  • Supportive and collaborative working environment.

How to Apply If you are a driven Mechanical Design Engineer looking to step into a Principal role within a dynamic consultancy, we would love to hear from you. Please submit your CV and a brief cover letter outlining your experience and suitability for the role.

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Posted: March 11th, 2026