Suitable for: HVAC Applications Engineer | Mechanical Proposals Engineer | HVAC Estimating Engineer | Technical Sales Engineer (HVAC) | Mechanical Applications Engineer | HVAC Estimator | Building Services Proposals Engineer | Technical Estimator Summary A specialist UK HVAC business is seeking an Internal Proposals Engineer to support the development of technical quotations and engineered HVAC solutions. The business designs and delivers bespoke HVAC systems for complex industrial and energy-related applications where performance, reliability and compliance are critical. Working closely with business development and engineering teams, this role focuses on reviewing technical enquiries, developing costed proposals and supporting the conversion of opportunities into secured projects. Role Review incoming enquiries, specifications and tender documentation Develop technical and commercial proposals for bespoke HVAC systems Interpret client requirements and translate them into engineered solutions Prepare detailed cost estimates, quotations and proposal documentation Liaise with internal engineering teams to ensure technical feasibility Support the sales team during the bid and proposal process Requirements Engineering background within HVAC, mechanical engineering or building services Experience in proposals, estimating or applications engineering within an engineering or manufacturing environment Ability to interpret technical drawings and tender specifications Strong attention to detail and ability to produce clear technical documentation Good commercial awareness and understanding of costing principles Package Salary £45,000-£55,000 25 days holiday bank holidays Company pension Opportunity to work on technically complex HVAC projects WR HVAC | M&E are 1 recruitment partner for HVAC jobs. Our customers include a range of large and small M&E companies, manufacturers and suppliers of heating, ventilation, air conditioning and refrigeration equipment. We recruit UK wide for sales, management and technical jobs. WR is acting as an Employment Agency in relation to this vacancy.