We’re looking for a Senior Data Analyst to join us and support the team as we put new tools, technologies, and analytical techniques into practice. The role will support the delivery of insight and analysis across the UK’s largest water and wastewater company, with a real focus on using data to solve practical, real-world problems.

For the right person, this is a great opportunity to progress your career by stretching your skills, supporting colleagues, and applying your technical knowledge in a meaningful way. You will be involved in building logic, automating processes, developing reports, and delivering insight, using tools such as SQL, Power BI, Python,  and Azure Databricks  to drive efficiency and effectiveness across the business.

What you’ll be doing as a Senior Data Analyst

  • Analysing large and varied data sets from operational, environmental, and external sources to generate clear insight.
  • Designing, transforming, and querying databases to support reporting and data-led decision making.
  • Building and maintaining dashboards and reports using tools such as Power BI and SQL, Azure Databricks.
  • Developing logic and automation to improve efficiency, data quality, and consistency.
  • Applying statistical methods and modelling to identify trends, risks, and opportunities.
  • Working closely with stakeholders to understand priorities and translate business questions into analytical solutions.

Base location: Kemble Court, Reading (RG2 6AD)


Working hours: 36 hours per week Monday to Friday

What you should bring to the role

  • Experience with data pipelines or Azure Databricks is essential.
  • Strong experience in data analysis, reporting, and insight generation.
  • Solid knowledge of SQL and Power BI, including Power Query.
  • Experience working with large, complex data sets and multiple data sources.
  • Practical experience using statistical tools or languages such as Python or R.
  • The ability to explain data and insight clearly to non-technical audiences.

What’s in it for you?

  • This role will be paid from £48,105 to £53,000 per annum, depending on skills and experience.
  • 26 days holiday per year, increasing to 30 with the length of service. (plus bank holidays)
  • Generous Pension Scheme through AON.
  • Access to lots of benefits to help you take care of yourself 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.
  • Performance-related pay plan directly linked to company performance measures and targets.

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 meaningful career opportunities, flexible working arrangements and excellent benefits.

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.

We’re committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that’s extra time, accessible formats, or anything else just let us know, 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.