Senior Mechanical Design Engineer

Company: Premier Group
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Job Description:

Job Title – Senior Mechanical Design Engineer

Duration – 3 Month Contract (potential for extension)

Working Model – Fully remote or onsite in Bridgend, Wales

Hourly Rate – Circa £40p/hour (Outside IR35)

Senior Design Engineer Overview

My client is seeking an experienced Senior Mechanical Design Engineer with a building services background to join their design team. This role is suited to someone capable of working independently within a contracting environment, delivering detailed mechanical building services designs across commercial and industrial projects.

The position involves design development through to installation, commissioning, and handover, with a strong emphasis on HVAC, public health systems, and building services coordination. The successful candidate will also be responsible for Part L compliance and Stage 4 design verification in line with UK building regulations.

The Senior Design Engineer role will involve:

  • Produce and review mechanical designs for commercial and industrial projects
  • Work independently and manage own workload
  • Prepare technical reports and specifications
  • Carry out Part L energy assessments and ensure compliance with UK Building Regulations
  • Review and verify Stage 4 designs before construction
  • Coordinate with other disciplines and ensure builder’s work requirements are met
  • Support project delivery through to installation and commissioning

The Senior Design Engineer will need to have the following attributes:

  • Proven experience as a Mechanical Design Engineer within Building Services
  • Able to work independently with minimal supervision
  • Solid understanding of HVAC and mechanical building systems
  • Knowledge of Part L assessments and energy compliance
  • Knowledge of Stage 4 design and construction coordination
  • Good communication and coordination skills
  • Revit experience is beneficial but not essential

If you are interested in this position, please apply with an up to date CV, along with your availability and hourly rate expectations.

Posted: May 23rd, 2026