Principal​/Associate Civil Engineer - Southern England

Location/s:

London, Croydon, Reading, Brighton, Cambridge & Southampton; UK

Mott Mac Donald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices.

We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve. Our people power our performance – we succeed when they do. With countless opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual.

Whether you want to grow as a subject matter expert or broaden your experience with roles across our international community, you're surrounded by global specialists who want to combine their expertise and champion you to be your best. As a proudly employee‑owned business, we benefit our clients, our communities, and each other, investing in creating the right space for everyone to feel empowered, included, and valued.

Whatever your ambition, Mott Mac Donald is where people come to be brilliant.

The Water Utilities Division is Mott Mac Donald’s centre of excellence for responding to the UK and Ireland’s water and wastewater challenges. The work we do is at the forefront of ensuring safe water supplies for future generations, preventing urban flooding, and improving the health of our rivers and coastal environments. Our multi‑disciplinary teams provide a variety of services throughout the full project life cycle, from advisory services and feasibility studies to outline and detailed design.

Together, we deliver best‑in‑class solutions to our clients while offering diverse and technically stimulating opportunities to our people.

Due to sustained framework successes, we have opportunities for Principal and Associate Civil Engineers in our Southern England offices. This is a senior design‑focused role, primarily supporting and leading the delivery of outline and detailed design for water and wastewater projects across major UK water frameworks. We are particularly interested in people with UK water company experience, but we are also open to those with strong civil engineering design experience from wider infrastructure sectors who can bring practical design leadership, technical judgement and a collaborative approach.

• Water treatment
• Water distribution and strategic pipelines
• Wastewater networks and pumping stations
• Wastewater treatment and recycling
• Storm overflow upgrades and environmental improvement schemes

The role will involve leading projects from feasibility design into outline and detailed design, coordinating technical delivery and helping shape practical, buildable and efficient engineering solutions that improve water infrastructure and environmental performance. You will provide technical leadership across design drawings, calculations, specifications, schedules and supporting technical documentation, while managing interfaces with other disciplines and supporting technical assurance. You will also provide senior input during construction where required, helping resolve design queries and maintain continuity between design intent and delivery.

In this role you will be responsible for:

• Leading and coordinating outline and detailed civil engineering design for water and wastewater projects, with a main focus on United Utilities and other UK water clients
• Providing technical leadership across design deliverables, including calculations, drawings, specifications, schedules, technical reports and design submissions
• Managing design interfaces across multidisciplinary teams, including hydraulic, process, mechanical, electrical, structural, geotechnical, environmental and construction specialists
• Reviewing, checking and assuring design information in line with project, client and professional requirements
• Resolving technical issues and helping ensure designs are practical, safe, buildable, efficient and aligned with client outcomes
• Leading, mentoring and supporting engineers and technicians, helping develop technical capability and confidence across the team
• Engaging confidently with…