An established contractor is looking for an experienced Design Manager to join their team on a major water infrastructure project in the Portsmouth. This is a key role responsible for ensuring the effective delivery of design packages across a complex, multi-disciplinary project, working through planning, design, procurement, construction, and commissioning stages. Responsibilities of Design Manager: Understand client requirements and review the suitability of proposed solutions given site constraints Review design submissions before issuing to the client and coordinate responses to client comments in a timely manner Lead and review mechanical design, specifications, equipment orders, and schedules Manage the delivery of design projects within a BIM environment Conduct site asset surveys at scoping and commissioning/handover stages Liaise with operations, maintenance staff, and stakeholders throughout design and commissioning stages Attend design and progress meetings, tender handover, and pre-start meetings Review and approve design consultant applications for payment Ensure compliance with current industry standards and manage risk and commercial performance effectively Ensure timely management of both temporary and permanent design to meet project requirements Essential Requirements for Design Manager: Degree or HND in a relevant engineering discipline Minimum 3 years' post-graduate experience within the water or wastewater industry Strong knowledge of mechanical specifications, system design, and construction techniques Commercial awareness including NEC3, NEC4, and JCT contracts Knowledge of CDM regulations and health, safety, and environmental legislation Understanding of ISO 9001, ISO 14001, and ISO 45001 management systems Awareness of DSEAR and HAZOP requirements Proficiency in MS Office and MS Project or Primavera Full UK driving licence IOSH or NEBOSH qualification TPBN1_UKTJ