Mechanical Design Engineer

Mechanical Design Engineer – Commercial Fit Out (Central London)

£65,000 - £75,000 + travel

2-3 days hybrid working

Permanent position

James Lewis are assisting a well-established building services contractor in the appointment of a Mechanical Design Engineer to support the delivery of UK commercial fit out projects. This is a great opportunity for an engineer who can take ownership of design through RIBA Stage 4/5, working closely with Project Managers, coordinators and client‑side stakeholders to deliver compliant, buildable solutions to programme.

• Degree qualified in a relevant subject (preferable)
• Membership (or working towards membership) of a professional institute (preferable)
• UK commercial fit out experience essential (contractor or consultancy background)
• Highly proficient in mechanical design principles through RIBA Stage 4/5 across:
  • General fresh air, dirty extract and LEV ventilation services
  • Domestic services
  • Above ground drainage services
  • LTHW heating services
  • CHW, VRF and Hybrid VRF cooling services
• Good understanding of WELL, BREEAM and NABERS requirements and their impact on design proposals (desirable)
• Proficient in thermal modelling software packages (preferable)

• Autonomous design of the above services, including Stage 4 calculations, plant/equipment selections and technical submissions within programme
• Producing clear mark‑up drawings and overseeing development with the coordination team into:
  • 3D Revit / fabrication models
  • Stage 5 installation drawings
• Attending internal and external meetings, including client‑facing sessions
• Working closely with Project Managers and the wider delivery team, providing technical support as required
• Maintaining commercial awareness and understanding the cost implications of design decisions

• £65,000 - £75,000 (dependent on experience)
• Travel: 2-3 days hybrid working
• No additional perks

Shortlisting is underway, so please apply quickly to avoid missing out.