Principal Mechanical Engineer Water

Are you ready to shape the future of water infrastructure

Were looking for a Principal Mechanical Engineer to 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 Youll 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 youll collaborate across multi-disciplinary teams to deliver innovative and sustainable solutions. As part of AECOM youll engage in impactful projects from inception through to delivery enhancing the environment and supporting communities.

Heres what youll 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

Youll 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 youll thrive in an inclusive and forward-thinking environment where your contributions are valued.

Qualifications :

Ready to push the limits of whats possible

Heres what were looking for:

• A degree (or equivalent) in Mechanical Engineering. 
• Chartered Engineer status (or working towards it) through a recognised institution like IMechE.
• Experience in the water and/or wastewater industry.
• Proven expertise in pump station design piping design valve selection hydraulics producing reviewing and approving engineering reports designs drawings and specifications.

Additional Information :

At AECOM we value everyones unique contributions and perspectives. We celebrate diversity including neurodiversity and believe it enriches our teams. We welcome applications from all backgrounds and abilities so if youre an applicant with a disability that requires reasonable adjustment to complete the application process please contact us at 

At AECOM we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM

AECOM is the worlds trusted infrastructure consulting firm delivering professional services throughout the project lifecycle from advisory planning design and engineering to program and construction management. On projects spanning transportation buildings water new energy and the environment our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise a culture of equity diversity and inclusion and a commitment to environmental social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $16.1 billion in fiscal year 2025. See how we are delivering sustainable legacies for generations to come at and @AECOM.

Freedom to Grow in a World of Opportunity 

You will have the flexibility you need to do your best work with hybrid work options. Whether youre working from an AECOM office remote location or at a client site you will be working in a dynamic environment where your integrity entrepreneurial spirit and pioneering mindset are championed.

You will help us foster a safe and respectful workplace where we invite everyone to bring their whole selves to work using their unique talents backgrounds and expertise to create transformational outcomes for our clients.

AECOM provides a wide array of compensation benefits and well-being programs to meet the diverse needs of our employees and their families. Were the worlds trusted global infrastructure firm and were in this together your growth and success are ours too.

Join us and youll get all the benefits of being a part of a global publicly traded firm access to industry-leading technology and thinking and transformational work with big impact and work flexibility. As an Equal Opportunity Employer we believe in each persons potential and well help you reach yours.

We are a Disability Confident Employer and will offer an interview to applicants who have a disability or long-term condition who meet the minimum/essential criteria for the role. Please let us know using this email address   if you would like to apply through the Disability Confident Interview Scheme.

All your information will be kept confidential according to EEO guidelines.

Remote Work :

No

Employment Type :

Full-time