Mechanical Engineer - Water

Water isn’t just a resource; it’s the lifeblood of our communities. As we navigate the ambitious demands of the AMP8 regulatory cycle, the choices we make today will define the environmental resilience of Wales and the South West for generations.

At Stantec, our water sector teams across Cardiff, Bristol, Taunton, and Exeter are growing rapidly. We are moving beyond standard engineering to deliver narrative-led, sustainable solutions for the region's major utility frameworks. To achieve this, we are looking for passionate Mechanical Engineers to join our collaborative, award-winning team. If you want to design with community in mind and tackle the realities of climate change and water scarcity head-on, your next chapter starts here.

About the Role

This is an invitation to bring your expertise to a team that influences the entire project lifecycle. Whether you are based in Wales or across the South West, you won’t just be sitting behind a desk; you will be an integral part of transforming ideas into reality.

Your work will span from early-stage feasibility and innovative optioneering right through to detailed design, collaborative 3D modeling, and on-site construction support. You will act as a pivotal technical bridge—collaborating closely with Project Managers, clients, supply chain partners, and multidisciplinary design teams to deliver high-quality, resilient water and wastewater infrastructure.

Your Impact

At Stantec, we don't just fill roles; we empower people to make a tangible difference. In this role, your impact will be felt through:

• Engineering Excellence: Designing and sizing complex pumping and aeration systems, producing robust technical specifications, and shaping Piping & Instrumentation Diagrams (P&IDs) and General Arrangement drawings.

• Collaborative Innovation: Bringing designs to life by actively contributing to technical workshops, collaborative planning sessions, and critical safety reviews (including HAZOPs and ALMs).

• Mentorship & Growth: For our more senior engineers, your impact will multiply as you provide technical leadership, guiding and inspiring the next generation of junior engineers within the team.

• Community Resilience: Assessing existing site infrastructure to unlock capacity, improve water quality, and help our clients meet their environmental commitments.

About You

You are a problem-solver who values collaboration and technical integrity. While we are keen to talk to engineers at various stages of their career journey, ideally, you will bring:

• A strong background in mechanical design, with a proven track record within the UK water or wastewater industry.

• Professional registration (Chartered Engineer status is highly desirable, or a clear pathway toward achieving it).

• An understanding of water treatment processes and the ability to evaluate asset health on-site.

• Excellent communication skills—you are comfortable translating complex technical concepts to clients, stakeholders, and multidisciplinary teams.

• A mindset aligned with our core values: we put people first, we do what is right, we are better together, and we are driven to achieve.

#UKWater

The Stantec community unites more than 34,000 employees working in over 450 locations across 6 continents. We have been working with our clients and communities in the UK for over 150 years. We plan, design, deliver and manage the development and infrastructure needed to support the creation of sustainable, healthy and prosperous communities. 

Our teams provide effective and relevant solutions, translating our clients’ vision into valued consents, deliverable plans for projects and programmes, and efficient designs for delivery, based on technical excellence and deep market insights. We deal with today’s challenges, but also keep a fairer, better tomorrow in sight, looking at how we deliver clean growth, support radical changes in our economy and meet the needs of future communities. 

Stantec provides equal employment opportunities to all qualified employees and applicants for future and current employment and prohibit discrimination on the grounds of race, colour, religion, sex, national origin, age, marital status, genetic information, disability, sexual orientation, gender identity or gender expression. We prohibit discrimination in decisions concerning recruitment, hiring, referral, promotion, compensation, fringe benefits, job training, terminations or any other condition of employment. Stantec is in compliance with laws and regulations and ensures equitable opportunities in all aspects of employment.

Building an inspired, inclusive work environment that attracts, supports, and develops world-class talent is a crucial key to our success. If you are excited by this role but worry that your experience doesn’t exactly align, we encourage you to apply.

At Stantec we want you to perform your best at every stage of the recruitment process and are committed to ensuring it is accessible to all. If you need any support or require adjustments to be made then please contact [email protected]  and we will talk to you about how we can support you.