Position Overview

We’re looking for a Cornwall based Mechanical Design Engineer to deliver building services projects . Your focus will be on designing, detailing, and developing mechanical systems in line with client needs and defence-sector standards. A security clearance from the Ministry of Defence (MOD) is essential.

Key Responsibilities

• Lead mechanical design for building services systems—HVAC, plumbing, fire suppression, and auxiliary services.
• Produce coherent and compliant 2D and 3D technical drawings using CAD tools (e.g., Revit MEP, AutoCAD, SolidWorks).
• Select and specify mechanical system components that meet performance, reliability, and cost-effectiveness targets.
• Coordinate mechanical systems design with architectural, electrical, structural, and control disciplines.
• Ensure all designs comply with UK building regulations, industry best practices, and MOD-specific security and performance standards.
• Review contractors’ deliverables; provide technical reviews and sign off on mechanical systems.
• Contribute to design reviews, site visits, and commissioning to ensure successful implementation.
• Maintain clear documentation—design calculations, specifications, and change logs.
• Engage with clients, contractors, and project stakeholders, ensuring smooth communication and project continuity.

Required Qualifications & Skills

• Bachelor’s degree in Mechanical or Building Services Engineering (or closely related discipline).
• Proven experience with mechanical design and design management as either a consultant or a contractor
• Experience with heating, cooling, public health systems etc
• Strong understanding of UK building regulations, standards (e.g., CIBSE, BS EN), and latest MEP industry practices.
• Experience working to defence or MOD standards, with the ability to handle sensitive information securely—current MOD security clearance is mandatory.
• Excellent analytical, problem-solving, and technical documentation abilities.
• Strong understanding of construction methods
• Ability to interpret architectural and engineering drawings
• Must be commutable from Cornwall office

Nice-to-Have Attributes

• Experience with H2X, IES, AutoCAD, MEP Worx and Revit
• Previous experience managing small design teams or leading projects
• Familiarity with sustainable building services design (energy efficiency, green certifications)
• Awareness of procurement and cost estimation for mechanical systems

Location & Benefits

• Competitive salary, bonuses and benefits package
• Training and development opportunities
• Supportive employer offering professional development, training, and progression opportunities
• Exposure to both commercial building projects and sensitive-defence related work
• Wellbeing days
• Flexible working arrangements
• Opportunity to be a part of a rapidly growing business

If you think this role could be for you or someone you know, please get in touch today!