Senior Process Engineer

Thames Water is on a mission to transform and modernise our wastewater infrastructure — and we’re looking for a Senior Technical Assurance Engineer with a strong Process Engineering background to lead the way on some of our most ambitious Major Projects.

This isn’t just a technical role. It’s an opportunity to shape the future of wastewater treatment for millions of people, balancing cutting-edge design, sustainability, value for money, and long-term resilience.

What you’ll be doing:

• Collaborate with diverse internal stakeholders, including engineers, asset management, and operations to shape fit-for-purpose solutions.
• Extensive collaboration with and assurance of consultants and contractors supporting the delivery of large, complex capital projects.
• Support preliminary, outline and detailed design with our delivery partners.
• Ensure compliance with legislation and regulations, as well as our policies, standards, and expectations.
• Conduct audits and review Risk Assessments, Method Statements, and Safe Systems of Work to contribute to our goal of zero incidents, zero harm, and zero compromise.
• Identify and support the management of delivery risks and opportunities.
• Contribute to the creation of Project Briefs and respond to RFIs.
• Train and mentor team members in treatment processes, procedures, and compliance requirements.

This role will be based on a Hybrid Basis at Clearwater Court in Reading, requiring on-site and office presence three days a week.

What you should bring to the role:

• Bachelor's, preferably Master’s, degree or other appropriate technical qualification in Chemical Engineering or related field.
• Recognised by a relevant professional institution as a chartered member or actively working towards chartered membership.
• Several years of relevant experience in the water industry, with experience in designing water treatment and/or wastewater treatment plants.
• Understanding of the water industry environment to achieve compliance with engineering regulatory requirements.
• Awareness of applying Construction (Design and Management) Regulations 2015 (CDM 2015).
• Technical knowledge and expertise within your discipline, with the ability to collaborate with various engineering disciplines.
• Excellent analytical and problem-solving skills.
• Excellent communication and interpersonal skills.
• Ability to prioritise and manage multiple projects and tasks.

What’s in it for you?

• Competitive salary from £52,000 to £62,000 per annum, depending on skills and experience.
• 26 days holiday per year, increasing to 30 with length of service (plus bank holidays).
• Contributory pension – Defined Contribution - Maximum of 12% - 2x employee contribution.
• Personal Medical Assessments – Open to all once a year.
• Wider benefits scheme including our benefits hub, packed full of offers and information to save you money and support your wellbeing.

Thames Water is the UK’s largest water and wastewater company, with more than 16 million customers relying on us every day. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive.

Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference. As part of our family, you’ll enjoy fast-tracked career opportunities, flexible working arrangements, and excellent benefits.

Our overarching aim is to ensure that Thames Water is a great, diverse, and inclusive place to work. We welcome applications from everyone and offer extra support for those who need it throughout the recruitment process.

When a crisis happens, we all rally around to support our customers. As part of Team Thames, you’ll have the opportunity to sign up to support our customers on the frontline as an ambassador.