Description Costain is expanding its Mechanical Design & Engineering Services to meet the increased engineering and design workload in the water sector, specifically for AMP 8 projects. We are currently seeking a Senior Mechanical Engineer – Water to join our team and support multiple clients, including United Utilities, Severn Trent, Thames Water, Southern Water, Northumbrian Water, and Yorkshire Water. The position will be based at our offices on Aviator Way, Manchester, with a flexible approach to home working to promote wellbeing. We encourage applications from candidates with experience in the water sector, as well as those from other industries, to foster interdisciplinary learning and enhance on-site delivery. This role presents an excellent opportunity to establish or advance a career in a technically challenging and rewarding sector that plays a crucial role in supporting the UK's water infrastructure. LI-MR1 Responsibilities Key Responsibilities To ensure compliance with Company & Client Policy with respect to water sector requirements. To complete specific design tasks as delegated by the Project Discipline Engineer or Engineering Manager as appropriate. To ensure work packs are delivered in timely and cost effective manner and in line with Company & Clients Project requirements and applicable Company & Client Codes and Standards. Where task forces are mobilised the team members are to be selected through the SQEP process and be familiar in the appropriate field of work. To ensure well maintained Quality Assurance, auditable records, and technical files in line with CDM requirements. To ensure smooth and efficient liaison with Other Associated Partners and disciplines as required. Knowledge, Skills, and Experience Essential Senior Mechanical Engineer - Water with specific UK knowledge and experience within their specialist field and discipline. (i.e.SQEP’d–Suitably Qualified Experienced Person). Significant experience in their discipline or a closely related one. Proficiency in the delivery of engineering design across a number of work categories. Desirable Experience in one or more of the following specialist mechanical engineering fields: Water treatment Waste water treatment Biosolids/sludge treatment Pumping systems Chemical storage and dosing Asset condition surveys and reports Experience with the following mechanical engineering and design deliverables and activities: Process Flow Diagrams Plant Layout Equipment Specifications and Datasheets Pumping system calculations Qualifications Essential Be on track or have achieved professional qualifications such as Chartership or Incorporated Status Educational experience relevant to their engineering discipline, ideally degree qualified to a 2:1 or better Secondary level education, such as A levels, BTEC, T levels etc Safety passport or similar Desirable Additional technically focused qualifications / training