Mechanical Design Engineer

Company: David Leslie Ltd

Location: London

Posted: May 1st, 2026

Mechanical Design Engineer | M&E Building Services | London | £65,000-£75,000 + Travel + Hybrid Working

This is a fantastic opportunity for an experienced Mechanical Design Engineer to join a well-established M&E Building Services contractor delivering commercial office fit-out projects across Central London, typically ranging from £100k to £2m+ in value.

Working within a fast-paced Design & Build environment, this role offers the opportunity to be involved in the full project lifecycle, from initial concept and design development through to delivery and handover.

The Role

As a Mechanical Design Engineer, you will be responsible for producing and coordinating mechanical building services designs that are both technically robust and fully deliverable within live project environments.

This is a hands‑on, delivery-focused role within a Design & Build setting, working closely with project and site teams to ensure designs align with programme, cost, and buildability requirements.

Projects typically range from small works through to larger commercial fit‑out installations, generally from £100k up to £2m+ in value.

Key Responsibilities

Requirements

Important

This role is specifically suited to engineers with commercial or fit‑out project experience. Those whose experience is primarily within residential or developer‑led projects are unlikely to be a strong match.

Remuneration Package

This role would suit candidates currently working as:

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