Principal Mechanical Design Engineer; Mission Critical

Principal Mechanical Design Engineer (Mission Critical)

Join to apply for the Principal Mechanical Design Engineer (Mission Critical) role at Lusona Consultancy
.

4 days ago – be among the first 25 applicants.

Our exclusive client is a global contractor leading in energy, digital, and industrial transitions, delivering bespoke solutions across infrastructure, buildings, and processes. With a strong presence in the UK and internationally, this organisation is renowned for its commitment to innovation, sustainability, and operational excellence. The company operates across a diverse portfolio, including data centres, clean rooms, pharmaceutical facilities, and other mission critical environments, ensuring high‑performance engineering solutions that meet the most demanding standards.

Our client is looking for an ambitious Senior or Principal Mechanical Design Engineer.

• Developing detailed mechanical designs for HVAC, chilled water, and specialist systems.
• Supporting project delivery from concept through to construction and commissioning.
• Collaborating with internal teams, clients, and external consultants to ensure design integrity.
• Conducting technical reviews, calculations, and system simulations.
• Assisting in mentoring junior engineers and contributing to continuous improvement.

• Degree qualified in Mechanical Engineering or other relevant subject.
• Proven experience in mechanical design engineering within mission critical sectors.
• Strong technical knowledge of HVAC, chilled water systems, and cleanroom design.
• Excellent proficiency in industry standard design tools such as AutoCAD, Revit, IESVE, Hevacomp, etc.
• Excellent project management and communication skills.
• Chartered Engineer status or working towards it (CEng, IMechE or equivalent) is desirable.

• Up to £70,000 per annum (DoE)
• Bonus – discretionary
• Car allowance
• 25 days annual leave + public holidays
• Life cover (4 times annual salary)
• Company stakeholder pension scheme
• Private medical insurance (including family cover)
• 2 corporate social responsibility days per year
• Broad range of learning opportunities, such as professional qualifications, collective/individual training and personalised support programmes
• Attractive employee referral rewards scheme
• Access to employee networks
• 24/7 employee assistance program and access to mental wellbeing app

If you’re interested in this opportunity, please submit your updated CV or reach out to Lusona Consultancy for a confidential conversation.

We’re happy to assist you in finding the perfect match should this role not be the right fit.

Seniority level:
Mid‑Senior level

Employment type:

Full‑time

Job function:
Engineering and Information Technology

Industries:
Staffing and Recruiting

Location:

Cumbernauld, Scotland, United Kingdom