Principal Mechanical Engineer, Water Sector

Start here. Grow here.

Are you ready to shape the future of water infrastructure?

We’re looking for a Principal Mechanical Engineer to join our growing Water team, with opportunities to be based across our South East offices -  Basingstoke, Croydon, London Aldgate and St Albans. 

In this role, you’ll play a key part in delivering major UK water utility investment programmes, supporting the design and delivery of projects that range from small rural sites to multi-million-pound infrastructure and non-infrastructure schemes. These frameworks are long-term and extend through AMP8 and AMP9, giving you the chance to contribute meaningfully to sustainable water solutions across multiple regions.

You will support the delivery of several high-value capital programmes, including:

• South West Water – Framework for Engineering Consultancy Services:
  Lot 3 - Multi-Discipline Engineering Design
• Wessex Water – Capital Delivery Partner Framework Agreement:
  Lot 2 - Design Consultant
• Severn Trent Water – Lot 1 Major Projects Framework:
  Supporting AMP8 delivery plan valued at a TotEx of £14.9 billion
• Severn Trent D&B Projects – Supporting Tier 1 contractors on major non-infrastructure wastewater schemes
• Southern Water Strategic Delivery Partner (SDP) Frameworks:
  • Lot 1: Non-infrastructure water projects
  • Lot 2: Non-infrastructure wastewater projects
• Southern Water Low Complexity and Infrastructure Frameworks:
  • Lot 2: Wastewater Infrastructure
  • Lot 3: Infrastructure Framework – Partnering exclusively with Tier 1 contractors to deliver efficient and sustainable water and wastewater solutions

Working flexibly, you’ll visit client sites and collaborate with teams across multi-year frameworks. As part of our thriving business, you’ll take on rewarding multi-disciplinary projects from inception to delivery, creating innovative solutions that enhance the environment and improve communities. 

Here's what you'll do:

• Develop feasibility studies, outline and detailed designs, and provide construction support.
• Create design drawings, select mechanical plant, and prepare technical specifications.
• Collaborate with multidisciplinary teams, including civil, electrical, process, and mechanical engineers.
• Ensure high technical quality, 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, valves, and odour control.
• 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.

Come & Grow With Us.

Become part of our dynamic Water business, which boasts over 600 experts across the UK & Ireland, including 170 specialists across our England & Wales Water Solutions team. Collaborate with top-tier civil, mechanical, electrical, and process engineers to deliver a variety of captivating projects, from small initiatives to large-scale ventures, all the way from concept to completion.  Here, you’ll thrive in an inclusive and forward-thinking environment where your contributions are valued.

Enjoy the Perks.

At 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, our flexible hybrid working model to ensure a work-life balance that suits your lifestyle, technical practice networks, AECOM University, and volunteering days.