What you will do As a Senior HVAC Mechanical Design Engineer, you will be responsible for developing and designing HVAC systems, including equipment specification, sizing, and estimating for ASHPs, ventilation systems, and mechanical plant rooms. You will also provide technical support during the pre-bid process, ensuring HVAC solutions meet customer expectations and tender specifications.What we offerCompetitive salary and bonus planPaid holidays and sick payComprehensive benefits package including pension, life assurance, employee assistance program, employee referral scheme, employee discounts including high street brands, cycle 2 work scheme and discount on Johnson Controls security productsExtensive product and on the job/cross training opportunities with outstanding resources availableCareer development through various career laddersHow you will do it Analyze enquiry specifications, drawings, and associated documents to determine the exact scope of HVAC projects.Provide expert support in equipment selection, project estimating, and production of quotations and tender packages, in collaboration with the field sales department.Perform full design and costing of HVAC solutions, including the calculation of cooling load or air volume requirements and the selection of primary and supporting plant.Re-design mechanical plant rooms to accommodate ASHPs and develop full ventilation system designs.Create supporting drawings/diagrams and control system functional descriptions ..... full job details .....