Job Description:

Principal Mechanical Engineer

Cardiff

Up to £60,000

Overview

A leading global engineering consultancy is looking for a Principal Mechanical Engineer to join their South Wales team. This is one of the most successful and profitable MEP teams within the wider business, built on a strong DfE framework position and a track record of repeat client work.

The team collaborates closely with internal civils, structural, architectural, and sustainability colleagues, and increasingly takes on referrals through the QS and PM teams. Current workload spans education sector decarbonisation and net zero projects, Welsh healthcare frameworks, and semiconductor/high-tech industry work, with a deliberately diversified pipeline across sectors.

The Business

A world-class, multidisciplinary engineering consultancy with a strong regional presence in South Wales and national reach through framework agreements. The south Wales MEP team has grown significantly while maintaining a diversified project base across education, healthcare, and high-tech sectors, avoiding over-reliance on any single client or scheme.

The Role

You'll take ownership of client relationships from initial briefing through to delivery, producing mechanical specifications and equipment schedules, and carrying out heating, cooling, and ventilation calculations to support compliant, efficient designs. You'll work closely with the firm's Multi-disciplinary offering to add value across projects, represent the business confidently in front of clients and contractors, and take the lead on site surveys and progress reviews to ensure designs are delivered as intended.

There's no expectation to bring in new work, though it wouldn't be turned away if it came through. The role carries real scope to step into a lead capacity within the mechanical design delivery team, mentor junior colleagues, and grow into broader project and budget responsibility as you progress.

About You

• Degree qualified in Building Services Engineering or a related discipline
• Chartered (or working towards chartership) with CIBSE or IMechE
• CIBSE Low Carbon Consultant qualification desirable
• Comfortable using design tools such as IES, HEVACOMP, NBS, and Revit
• Experience in a design consultancy and/or contractor design environment
• Solid grasp of relevant technical standards
• Confident taking ownership of deliverables and operating proactively

You'll thrive in a team that values quality and retention over volume, with genuine national and international relocation opportunities as your career develops within the wider business.

Calibre Search promote equality in the workplace and we welcome applications from all suitably skilled or qualified candidates regardless of their sex, race, disability, religion/beliefs, sexual orientation or age. We act as both an employment agency and employment business.