Mechanical Design Engineer – Building Services South East (Office-Based with Project Engagement as Required) £50,000 – £60,000 per annum + Benefits Full-time, Permanent

Low carbon focus. Design ownership. Projects with real impact.

A well-established and expanding M&E contractor is seeking a Mechanical Design Engineer to join its growing in-house design team. Working closely with the Design Manager, you’ll be responsible for producing technically sound and energy-efficient mechanical designs across a range of education, commercial, residential, and mixed-use developments.

You’ll play a hands-on role in the design process from Stage 3/4 onwards—creating detailed layouts, calculations, specifications, and modelling reports using industry-standard software. This role suits a technically capable engineer who enjoys responsibility, is passionate about low-carbon design, and is confident managing their own workload within a collaborative team.

Why this opportunity

*

Structured role within a growing in-house design department

*

Wide range of live and upcoming projects across multiple sectors

*

Opportunity to take ownership of mechanical design output from early surveys through to delivery

*

Competitive salary, ongoing training, and long-term development potential

Key responsibilities

*

Produce mechanical designs, specifications, calc...