Principal Mechanical Engineer - HVAC & Building Physics (Remote)

Fully Remote
£60/hr Inside IR35
12-Month Minimum Contract
We're seeking an experienced Principal Mechanical Engineer to support a major defence infrastructure programme delivering critical M&E systems across Building C and Southern Services within the 10 Dock development.
This is a fully remote, long-term contract opportunity focused on HVAC design, substantiation, and multidisciplinary coordination within a highly regulated environment.
The Role
You'll lead mechanical design activities across concept, scheme, and detailed design stages, with particular responsibility for HVAC systems supporting substation infrastructure and occupied operational spaces.
Key responsibilities include:

Delivery of RIBA Stage 3 and Stage 4 mechanical design
HVAC and controls design for critical environments
Design and substantiation of central and local ventilation systems
Chilled water...