Principal Mechanical Design Engineer

Principal Mechanical Design Engineer - Hybrid Working

Our Client is a leading provider of renewable and low‑carbon energy infrastructure to both public and private sector organisations. They support hospitals, universities, new-build developments, towns, cities, and commercial‑industrial clients in decarbonising their buildings. They deliver major, high‑profile projects across the UK that directly support national Net Zero targets and are continuing to expand into new markets and regions as part of a strong long‑term investment strategy.

Our Client is growing at 20% year‑on‑year and employs over 125 MEP engineers, making them one of the UK’s most established specialists in energy centre design and build within the building services sector. Their projects span residential, commercial, healthcare, and education, delivering complex low‑carbon infrastructure across the country.

As part of the Engineering Design team, you will contribute to a broad range of projects from early concept through to fully detailed design. Schemes typically include:

• District and communal heating systems
• Energy centres
• Trigeneration solutions
• Heat pump systems

You will work on projects at various stages and locations, using a range of technologies. The role involves conceptual design work, site investigations, surveys, client meetings, technical submissions and presentations.

• Supporting the design of distributed energy schemes, energy centres and district heating networks
• Interpreting, appraising and documenting client requirements
• Carrying out calculations, equipment selection and process design
• Producing schematics and detailed drawings
• Maintaining awareness of cost implications during the design process
• Resolving design issues and minimising project impact
• Ensuring compliance with CDM requirements and internal processes
• Conducting HAZOP studies and risk assessments
• Assisting in the mechanical specification for tender submissions

• 6+ years experience producing mechanical designs within building services, power generation, renewable energy, or similar sectors
• Design experience in at least one of the following:
  Building Services, CHP, Boilers/Heating, HVAC, Steam, Air Handling, Cooling, Renewable Energy (e.g. Solar or Heat Pumps)
• Proficient in AutoCAD
• Full UK manual driving licence

• Salary negotiable depending on experience (up to £70,000)
• Car allowance or company car
• Contributory company pension scheme
• Non‑contributory death‑in‑service insurance
• Employee Assistance Programme
  25 days’ holiday plus 8 bank holidays
• Additional holidays with length of service
• Option to buy or sell additional leave
• Onsite gym/wellbeing centre (Blackburn Head Office)
• Discounted gym membership nationwide
• EV charging points where available