Principal Mechanical Engineer - Water

join our growing water team . You will play a key part in delivering multi-billion-pound capital programmes across the UK water sector, contributing to projects ranging from small rural sites to complex, multi-million-pound infrastructure and non-infrastructure schemes in both water and wastewater. These long-term frameworks extend through AMP8 and AMP9 , offering security, variety, and the opportunity to make a real impact in shaping sustainable water solutions. Key Programmes You’ll Support: South West Water – Engineering Consultancy Services Framework: Lot 3 – Multi-Discipline Engineering Design Wessex Water – Capital Delivery Partner Framework: Lot 2 – Design Consultants Southern Water – £3.7 billion Capital Delivery Programme: Strategic Delivery Partner (SDP) Frameworks: Supporting Tier 1 Contractors on: Lot 1: Non-infrastructure water projects & Lot 2: Non-infrastructure wastewater projects Low Complexity Delivery Route & SDP Lot 3 Infrastructure Frameworks: Partnering exclusively with Tier 1 Contractors to deliver high-quality wastewater infrastructure projects. With flexible working from our locations, you’ll collaborate across multi-disciplinary teams to deliver innovative and sustainable solutions. As part of AECOM, you’ll engage in impactful projects from inception through to delivery, enhancing the environment and supporting communities. Here's what you'll do: Lead mechanical design team for the projects involved in. Develop feasibility studies, outline and detailed designs, and provide construction support. Prepare and review of pumping system, air blower system design calculations Prepare and review design drawings, select mechanical plant, technical specifications & datasheets. 3D model review Collaborate with multidisciplinary teams, including civil, electrical, process, and mechanical engineers. Ensure high technical quality deliverables, contribute to bids, and maintain client relationships. Manage project budgets, schedules, and deliverables to meet agreed targets. Design mechanical installations for water and wastewater systems, including pumps, screens, lifting equipment, valves, and air blower. Conduct site surveys and liaise with clients, contractors, and suppliers. Produce layouts, technical specifications, datasheets, and P&IDs for system designs. As well as providing innovative and industry leading MEICA solutions to Clients, the team also collaborates with a wide variety of disciplines from other offices in delivering projects, including a close working relationship with our Enterprise Capabilities centres in India, South Africa and Romania. Why Join AECOM? You'll enjoy a range of core and personalised benefits designed to support your future and well-being, customised to fit your lifestyle. Take advantage of career development opportunities, technical practice networks, AECOM University, volunteering days and our flexible hybrid working model to ensure a work-life balance that suits your lifestyle. Become part of our dynamic Water business, which boasts around 700 experts across the UK & Ireland. Collaborate with top-tier engineers and consultants to deliver a variety of captivating projects, from small initiatives to large-scale ventures, all the way from concept to completion. At AECOM, you’ll thrive in an inclusive and forward-thinking environment where your contributions are valued.