Senior Mechanical Design Engineer (Contractor-side) — Concept to RIBA Stage 4
London & South East | Commercial Fit Out | Main Contractor | Permanent
A growing main contractor in the London and South East commercial office fit out market is strengthening its in-house design capability and is looking for a Senior Mechanical Design Engineer to lead from the front. Trading for 3.5 years and turning over circa £20m in 2026, the business has built its reputation quickly and now wants the right person to help shape how its mechanical design function develops.
This is a contractor-side role with genuine ownership from feasibility and concept through to RIBA Stage 4 technical design. The focus is firmly on delivery: programme, procurement, installability, change control and margin. You will lead mechanical design across multiple projects, coordinate external consultants and design partners, and challenge outputs where needed, including reviewing IES, Revit and Hevacomp information....