Principal Mechanical Design Engineer (Building Services)

TN United Kingdom; Wolverhampton; On-site; GBP 50,000 - 75,000; Full time

Job summary

A leading construction company is seeking a Principal Mechanical Design Engineer to lead complex mechanical design projects across the UK and Ireland. This permanent role involves mentoring engineers and ensuring compliance with regulations while delivering sustainable systems for various building projects.

Qualifications

• Chartered Engineer (CEng) or actively working towards it.
• Significant experience in mechanical design with leadership roles.
• Strong understanding of UK BIM standards and multidisciplinary coordination.

Responsibilities

• Lead mechanical design from concept through detailed design and commissioning.
• Manage design teams and ensure compliance with regulations.
• Attend and lead client meetings and site inspections.

Skills

Mechanical Design

Building Services

Data Centre

Construction

Renewable energy systems

Decarbonisation strategies

Education

Degree in Mechanical Engineering or Building Services Engineering

Tools

Hevacomp

IES VE

MagiCAD for AutoCAD/Revit

Autodesk Revit (MEP)

AutoCAD 2D

BMS tools

Microsoft Excel

Job description

Job Summary

Title: Principal Mechanical Design Engineer

Location: Wolverhampton, Edinburgh, or Dublin

Key Skills Required

Data Centre, Construction, Mechanical Design

Important

Data Centre, Construction, Mechanical Design

Our client, a leading entity in the construction sector, is seeking a highly experienced and driven Principal Mechanical Building Services Design Engineer to join their team. This permanent role involves leading complex mechanical design packages and mentoring a team of engineers. You will play a strategic role in delivering technically sound, regulation-compliant, and sustainable mechanical systems for new build and refurbishment projects across the UK and Ireland.

Key Responsibilities:

1. Lead mechanical design from concept through detailed design, tender, construction, and commissioning stages.
2. Develop designs for HVAC systems, Domestic Hot & Cold Water Services, LTHW and CHW, renewable and low-carbon energy systems, steam and compressed air systems, and Building Management Systems.
3. Manage and mentor design teams, ensuring adherence to project timelines, quality standards, and technical accuracy.
4. Produce and review detailed mechanical calculations for pipe and duct sizing, pump and fan selection, heat loss/gain, and system pressure drops.
5. Coordinate mechanical designs with other disciplines including electrical, public health, architectural, structural, and sustainability.
6. Provide technical input at all project stages including feasibility, value engineering, and commissioning reviews.
7. Attend and lead client meetings, site inspections, and technical workshops.
8. Ensure compliance with current UK and Irish regulations, energy targets, and best practices.
9. Support development and implementation of BIM Level 2 and ISO 19650 design workflows.

Job Requirements:

1. High proficiency in Hevacomp, IES VE, MagiCAD for AutoCAD/Revit, Autodesk Revit (MEP), AutoCAD 2D, and BMS tools.
2. Proficient with Microsoft Excel for custom engineering calculations and performance schedules.
3. Degree in Mechanical Engineering or Building Services Engineering (BEng/BSc minimum; MEng preferred).
4. Chartered Engineer (CEng) status with CIBSE or IMechE (or actively working towards).
5. Significant experience in mechanical building services design within the UK, with leadership responsibilities.
6. Experience leading mechanical design on large-scale or complex projects.
7. Strong understanding of UK BIM standards (BS EN ISO 19650) and multidisciplinary coordination practices.
8. Excellent verbal and written communication skills.
9. Experience in decarbonisation and whole-life carbon design strategies.
10. Knowledge of embodied carbon tools (e.g., CIBSE TM65).
11. Experience working across both UK and Irish regulatory environments.
12. Sector-specific experience in healthcare, education, or data centres.
13. Experience supporting bid writing, fee proposals, and project planning.

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