Job Title: Mechanical Design Engineer (Lead / Principal grade) Location: Preston (Hybrid Working) Salary: 60,000 - 70,000 + benefits or Contract Rate: 50 - 55ph Ltd Overview: Our client is seeking a highly experienced Principal Mechanical Engineer (contract or permanent) to lead the design and delivery of complex water and wastewater infrastructure projects. This is a key technical leadership role within the team, providing strategic input across project lifecycles, ensuring compliance with industry standards, and driving engineering excellence across mechanical packages. Key Responsibilities: Provide strategic leadership in the design and delivery of mechanical infrastructure for clean and wastewater treatment works, ensuring alignment with programme, cost, and quality objectives. Lead the development of detailed mechanical designs, including drawings, specifications, and calculations, ensuring technical excellence and compliance with client and industry...