Senior Mechanical / HVAC Design Engineer Location: Manchester Salary: Competitive + car allowance Employment Type: Full-time, PermanentA specialist mechanical and HVAC subcontractor is seeking a Senior Mechanical / HVAC Design Engineer to join their dynamic and growing design team in Manchester. This company is known for delivering high-quality, technically complex mechanical systems as a trusted subcontractor across a wide range of real-world, installation-focused projects.About the Role:In this role, you''ll work within an experienced in-house team that supports the full design-and-build lifecycle of HVAC and mechanical systems. You''ll be involved from concept design through to detailed installation support, working on fast-paced projects across sectors including industrial, commercial, retail, and government.Projects range from high-street retailers and flagship corporate offices to secure government facilities, high-spec industrial environments, and advanced RandD buildings - including collaborations with major names in motorsport, technology, and public infrastructure. Key Responsibilities:ead HVAC/mechanical system design for live construction projectsProduce detailed technical drawings, equipment schedules, and coordinated models (AutoCAD/Revit)Carry out system sizing, ductwork and pipework layouts, and heat gain/loss calculationsCollaborate closely with project managers, site teams, and supply chain partnersTranslate specifications and client briefs into ..... full job details .....