Senior Process Engineer - Water

Every day, water and wastewater infrastructure faces new demands, from maintaining reliable drinking water supplies to improving treatment processes and protecting the natural environment. At Stantec, our Process Engineering teams are helping shape the solutions to these challenges, delivering projects that support essential water services and create lasting benefits for communities.

We’re looking for a Process Engineer – Water Sector to join our growing teams in Reading, Brighton, Southampton or Cambridge . Working across both Clean Water and Wastewater projects, you’ll gain exposure to a broad range of engineering challenges, treatment processes and infrastructure improvements, collaborating with experienced engineers and multidisciplinary specialists.

This is an opportunity to develop your technical expertise across the wider water sector, contribute to meaningful projects and build a rewarding career within a supportive and growing Process Engineering team.

As a Process Engineer, you’ll support the development and delivery of engineering solutions across Clean Water and Wastewater projects, contributing to work at different stages of the project lifecycle.

You will:

• Develop process engineering solutions, including calculations, mass balances, hydraulic assessments and treatment evaluations.

• Prepare technical reports, specifications, calculations and design documentation.

• Support process design from feasibility and concept development through to detailed design and construction support.

• Contribute to site investigations, asset assessments, treatment optimisation and technical studies.

• Work with civil, mechanical, electrical, hydraulic and environmental specialists to develop coordinated engineering solutions.

• Collaborate with project teams to understand client requirements and deliver practical, sustainable outcomes.

• Build your technical capability through mentoring, training and hands‑on experience across a diverse project portfolio.

• Contribute to continuous improvement and the development of effective engineering practices.

Your work will help improve the performance, resilience and sustainability of water and wastewater infrastructure across the UK. By contributing to projects spanning both Clean Water and Wastewater, you’ll support reliable water supplies, effective treatment processes and better environmental outcomes.

You’ll also broaden your understanding of the water sector, learn from experienced specialists and develop the technical and project delivery skills needed to take on greater responsibility as your career progresses.

• Degree qualified in Chemical Engineering, Process Engineering or a related discipline.

• Experience or a strong interest in developing a career in process engineering within the water sector.

• Understanding of process engineering principles and water and/or wastewater treatment.

• Good analytical, technical and problem‑solving skills.

• Ability to work collaboratively within multidisciplinary project teams.

• Strong written and verbal communication skills.

• Ability to organise your workload and meet project deadlines.

• Enthusiasm for learning and developing your technical expertise.

• Chartered or Incorporated Engineer (CEng/IEng), or actively working towards professional registration.

• Membership of a relevant institution, such as CIWEM, IChemE, ICE or IMechE.

• Experience in the water, wastewater, utilities or infrastructure sectors.

• Familiarity with process calculations, mass balances, hydraulic assessments or treatment evaluations.

• Experience contributing to technical reports, engineering studies or design development.

• Exposure to site investigations, commissioning, testing or asset optimisation.

• Interest in sustainability, digital…