https://jobs.co.uk/job/senior-mechanical-building-services-design-engineer-rullion-managed-services--63e00a80-ab15-49ba-b58c-5c2ef3e2d290 RSS feed for Senior Mechanical Building Services Design Engineer at Rullion Managed Services. en-gb Sat, 17 Oct 2026 14:36:52 GMT https://jobs.co.uk/job/senior-mechanical-building-services-design-engineer-rullion-managed-services--63e00a80-ab15-49ba-b58c-5c2ef3e2d290 https://jobs.co.uk/job/senior-mechanical-building-services-design-engineer-rullion-managed-services--63e00a80-ab15-49ba-b58c-5c2ef3e2d290 Sat, 17 Oct 2026 11:52:44 GMT Location: City | Salary: 10000-500000 Annual | Type: Contract | Job title: Senior Mechanical Building Services Design EngineerJob Type: 6 month temporary contract with possible extensionLocation: Manchester / HybridPay rate: CompetitiveIR35: Outside IR35Are you a talented Mechanical Building Services Design Engineer looking to take ownership of major infrastructure projects and play a key role in the delivery of complex, high-value engineering schemes?We''re seeking a Senior Mechanical Building Services Design Engineer to lead the design and delivery of mechanical building services and HVAC systems across critical infrastructure and energy projects, including substations, power transmission facilities, HVDC projects, and other mission-critical environments.What You''ll Be Doing Leading mechanical and HVAC design from concept through to construction support Producing and reviewing calculations, specifications, reports and technical studies Designing HVAC, plumbing/public health and associated building services systems Performing heating and cooling load calculations, ventilation design, pipework and ductwork sizing, and plant selection Managing technical risks, design reviews and compliance with UK regulations and industry standards Collaboratin... Contract