Principal Mechanical Engineer - Water

Step into a pivotal role at Stantec where your technical mastery meets the front lines of the challenges facing the water industry today. As a Principal Mechanical Engineer within our South of England Water team, you will be leading the design of mechanical systems that ensure water security and environmental resilience for water companies across the UK and Ireland. Whether you choose to base yourself in Brighton, Ashford, Kings Hill, or Southampton, you are joining a consultancy at the peak of its growth, offering you a high-visibility platform to sharpen your expertise and lead complex, multi-million-pound frameworks.

This position is designed for a technical specialist who thrives on the intricate details of the entire asset lifecycle. You will own the process from initial feasibility studies and rigorous optioneering through to the precision of detailed design and on-site construction support. Your day-to-day will involve conducting deep-dive site surveys and investigations to ensure our engineering solutions are both innovative and robust.

You will find yourself at the heart of cutting-edge mechanical design, solving unique efficiency challenges that directly impact our local communities.

Beyond the technical drafting and specification, this role serves as a cornerstone for professional development and mentorship. You will act as the primary technical conduit between project managers, supply chain partners, and contractors, ensuring that sophisticated mechanical requirements are translated into successful, real-world outcomes. As you guide less experienced engineers through the nuances of the water business, you will find a clear and supported path for your own career progression.

At Stantec, your growth is fuelled by a collaborative culture and the opportunity to leave a tangible, sustainable legacy across the UK’s water infrastructure.

For more information on our Water teams, please see Stantec Water.

You will be an experienced Mechanical Engineer with a Degree in Mechanical Engineering or a related subject, ideally holding Chartership (or be on route to Chartership), with experience in mechanical design.

Your experience will include producing technical outputs such as design specifications, sizing & designing pumping systems & aeration systems, schedules, reports and familiar with collaborative planning reviews and designs of solutions.

You will be able to provide engineering input design outputs in collaboration with other disciplines, such as General Arrangement Drawings, 3D models and Piping & Instrumentation Diagrams.

Finally, experience of mentoring junior engineers or managing a Mechanical team will be advantageous, though not essential to the role.

• Our People Culture:
  We're a close knit team and very proud of our friendly and collaborative environment
• Awards:
  Stantec were awarded the International Consulting Firm of the Year and Best place to work - Large Consulting Firms at the NCE awards as well as being consistently recognised in the top 10 Corporate Knights most sustainable companies in the world.
• Great Benefits:
  Competitive salary, pension plan, holidays, free private medical insurance, discounted gym membership and lots more.
• Flexible working arrangements
• Industry leading training and development as well as paid for professional subscriptions

To hear what some of our employees say about life at Stantec, please click on My Stantec Stories.

#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,…