Hydraulic Modeller

This is a unique opportunity to join a dynamic team at the heart of Thames Water’s operational transformation. As a Hydraulic Modeller, you’ll play a key role in optimising water supply, improving quality, and reducing leakage, directly supporting critical service improvements for our customers.

What you’ll be doing as a Hydraulic Modeller
You'll be part of a small, specialist team maintaining and verifying hydraulic network models to support operational decisions. Your work will involve collaborating across departments, helping optimise water quality and system performance, resolving model anomalies, and contributing to solutions for leakage reduction, supply risks, and emergency incidents.

• Contributing to the build, maintenance, and verification of hydraulic network models, including flow and pressure surveys, as part of the Operational Hydraulic Modelling team.
• Supporting hydraulic modelling specialists in developing solutions and advising teams across Asset Management, Capital Delivery, and Clean Water Production.
• Collaborating with colleagues and stakeholders to help shape operational and investment decisions.
• Assisting with water quality modelling at reservoir sites to optimise water transfer strategies, maintain reservoir turnover, and minimise impacts on customers, leakage, and energy.
• Reviewing and resolving model calibration anomalies with support from the Systems Optimisation team and field resources.
• Helping to design system reconfiguration schemes and support leakage reduction through calmer network operations.
• Supporting BAU solutions to address DG2 low-pressure and supply interruption risks.
• Assisting with solutions for emergency operational incidents where needed.

Hybrid – Kemble Court, RG2 6AD – some travel will be required as part of the role responsibilities.

What you should bring to the role

• Degree (or equivalent) in Engineering or an environmental discipline, with a strong interest in hydraulic modelling and the water industry.
• Experience with GIS is essential, with familiarity with Infowater, InfoWorks, or IW Live tools being desirable.
• Ability to interpret complex data, draw conclusions, and make informed recommendations across strategic projects.
• Strong communicator who can collaborate effectively and deliver high-quality, modelling-led solutions.
• Proficient in IT, numeracy, and data analysis, with attention to detail.
• Well-organised, with the ability to manage multiple tasks simultaneously.
• Willingness to travel across our operational area for site visits and meetings to support outputs and gain field experience.

What’s in it for you?

• Competitive salary from up to £50,000 per annum, depending on skills and experience.
• 26 days holiday per year, increasing to 30 with the length of service (plus bank holidays)
• Performance-related pay plan directly linked to both company and individual performance measures and targets
• Generous Pension Scheme through AON
• Access to lots of benefits to help you take care of you and your family’s health and wellbeing, and your finances – from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance.

Find out more about our benefits and perks

Who are we?
We’re the UK’s largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It’s a big job and we’ve got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come.

Learn more about our purpose and values

Working at Thames Water
Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you’ll enjoy fast-tracked career opportunities, flexible working arrangements and excellent benefits.

Whether you’re interested in a role in one of our call centres or science labs, we’re looking for people like you with real passion and a burning desire to make things better.

So, if you’re looking for a sustainable and successful career where you can make a daily difference to millions of people’s lives while helping to protect the world of water for future generations, we’ll be here to support you every step of the way. Together, we can build a better future for our customers, our region and our planet.

Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more.

Our overarching aim is to ensure that Thames Water is 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. Our aim is to remove any real or perceived barriers to success, so if you need assistance, we’re here to help and support.

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. Full training will be given for what is undoubtedly an incredibly rewarding experience. It’s also a great opportunity to learn more about our business and meet colleagues.

Disclaimer: Due to the high volume of applications we receive, we may close the advert earlier than the advertised date, so we encourage you to apply as soon as possible to avoid disappointment.