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Principal Mechanical Design Engineer

United Kingdom, Blackburn · Job Posted May 29, 2026
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Job Description

Due to our ongoing growth, we are looking for a Principle Mechanical Design Engineer to join our growing teams based in our London, Blackburn and Glasgow office. As part of the Engineering Design team you will be involved in producing a broad range of conceptual to fully detailed designs covering things such as District and Communal Heating Systems, Energy Centres, Trigeneration Solutions and Heat Pumps Due to the nature of the role you will be involved in projects at a variety of stages and locations utilising a range of technologies requiring initial conceptual work, site investigations, surveys, client meetings, project submissions and presentations.

Job Responsibility

  • Supporting the design of distributed energy schemes, energy centres, district heating networks and other major projects
  • Interpreting, appraising and documenting client requirements
  • Carrying out calculations, equipment selection and process operation
  • Producing schematics and detailed drawings
  • Maintaining an awareness of cost implications within the design process
  • Dealing with design issues and minimising their impact
  • Ensuring compliance with CDM requirements and in-house processes
  • Conducting HAZOP studies and Risk Assessments
  • Assisting in specifying mechanical aspects for tendering works

Requirements

  • 6+ years’ experience producing mechanical designs for Power Generation, Power Transmission, Renewable Energy, Building Services or similar projects
  • Design experience in at least one of the following fields: Building Services, CHP, Boilers/Heating, HVAC, Steam, Air Handling, Cooling, Renewable Energy (e.g Solar or Heat Pumps), or similar
  • Knowledgeable on AutoCAD
  • Full UK manual driving licence

What we offer

  • Car Allowance or Company Car
  • Contributory Company Pension Scheme
  • Non-contributory death-in-service insurance
  • Employee Assistance Programme
  • 25 Days Holiday plus 8 days bank holidays
  • Additional holidays awarded in line with length of service
  • Option to purchase/sell additional holidays
  • Onsite gym/wellbeing centre at our Blackburn Head Office
  • Discounted gym membership across the UK
  • EV charging points where possible

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