Summary: We are seeking a Principal Civil Engineer to lead the civil engineering design and delivery of wastewater treatment plant projects. The role requires expertise in underground piping, grading, and process unit layout to ensure efficient, safe, and compliant infrastructure solutions. You will be responsible for managing multidisciplinary teams, overseeing technical design activities, and ensuring that all civil engineering aspects align with project requirements, regulatory standards, and best practices. This position demands strong leadership in coordinating with design teams, clients, and contractors to deliver innovative and sustainable wastewater treatment solutions. The successful candidate will play a pivotal role in feasibility studies, detailed design, and construction support, ensuring that designs are optimised for operational performance and long-term asset resilience. Skills: Civil engineering design for wastewater treatment plants Underground piping design and layout Grading and site drainage design Process unit layout and integration Project management and team leadership Knowledge of relevant health and safety legislation and British Standards Experience with design risk assessments and quality assurance Stakeholder engagement and client liaison Ability to produce and review engineering calculations and technical reports Strong problem-solving and decision-making skills Software/Tools: AutoCAD or equivalent CAD software Hydraulic modelling tools ..... full job details .....