FP&A Senior Analyst

We are seeking a highly skilled, data-curious and motivated FP&A specialist to join our Group FP&A Team. The successful candidate will be responsible for performing in-depth analysis and second-line assurance of divisional financial information, ensuring accuracy, consistency, and reliability of financial data and forecasts across the organisation and alignment to organisational strategy. This is an exciting role which occupies a key position in our performance management, planning, analysis, forecasting and budgeting team and requires a strong analytical mindset, excellent problem-solving skills, and the ability to communicate complex findings effectively.

The FP&A Senior Analyst (Opex) will be specifically responsible for preparing and maintaining in-depth analyses across several key areas of operational expenditure, to identify drivers, patterns and provide valuable financial insights to senior stakeholders both in Finance and the wider organisation.

This is a rewarding opportunity to influence the financial future of the UK’s largest water company, ensuring we deliver sustainable performance and create long-term value for our customers, communities, and stakeholders.

What you will be doing as FP&A Senior Analyst (Opex)
Financial Modelling & Analysis

Develop and maintain robust analytical models to understand and forecast operational expenditure drivers.
Analyse historical performance trends to identify insights, risks, and opportunities.
Build forward‑looking models to enhance financial planning capability.Planning, Budgeting & Forecasting

Support the annual budgeting, quarterly forecasting, and long‑term strategic planning cycles.
Provide second‑line assurance to ensure the accuracy and consistency of financial forecasts and divisional submissions.Performance Reporting & Insight

Produce high‑quality analysis, dashboards, and visualisations for senior stakeholders across Finance and the wider business.
Investigate performance variances and provide insightful commentary that informs decision‑makingStakeholder Engagement

Partner with divisional FP&A teams, HR, Treasury, and Commercial to gather data and validate assumptions.
Work closely with the FP&A Manager (Opex) to improve the efficiency, automation, and quality of reporting processes.Continuous Improvement & Automation

Streamline existing reporting, eliminating non‑value‑added processes.
Automate analysis and outputs using Power BI, SAC Planning, or other analytical tools.Location- Hybrid, Reading
Working hours - 36

What should you bring to the role?

A qualified accountant with experience in the FP&A function with a proven track record in 'adding value'.
Excellent knowledge of providing financial insight, preparing annual plans, forecasts and knowing what ‘good’ looks like
Strong proficiency in data analysis techniques, tools, and modelling
Excellent problem-solving capabilities with a curious and creative mindset to exploring patterns and extracting meaningful insights, and a keen attention to detail
Strong communication skills with the ability to explain complex concepts to non-technical stakeholders
Advanced Excel and PowerPoint skills, with the ability to create complex models and impactful presentations
Ability to manage a short-term weekly cash flow forecasting on a receipts and payments basisWhat’s in it for you?

Competitive salary of £65,000 - £72,000 per annum, depending on experience.
Annual Leave - 26 days holiday per year, increasing to 30 with the 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, which is packed full of offers and information to save you money and support your wellbeing.
Performance-related pay plan directly linked to company performance measures and targets. Find out more about our benefits and perks (Please note different T&Cs apply if on secondment)

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