Interim Finance Modelling Manager

Thames Water Utilities Limited; Reading; Hybrid; GBP 76,000 - 90,000; Full time

Job summary

A leading water services company in the UK is seeking an Interim Finance Modelling Manager for a 12-18 month contract. This role requires comprehensive financial analysis and the development of a robust regulatory model. The ideal candidate will bring strong finance expertise, experience in financial modelling, and excellent data analysis skills. A competitive salary of up to £90,000 commensurate with experience is offered, along with flexible working arrangements and various benefits including annual leave and private healthcare.

Benefits

Annual Leave - 26 days, increasing with service

Annual Bonus

Private Medical Health Care

Contributory pension

Personal Medical Assessments

Health and wellbeing benefits

Performance-related pay plan

Qualifications

• Accountancy qualified (CCAB) or equivalent is essential.
• Proven experience in developing and operating financial models.
• Ability to perform sophisticated data analysis and think critically.

Responsibilities

• Operate and develop the financial and regulatory model.
• Review of credit metrics and support scenario analysis.
• Work with internal teams to ensure robust long-term business plans.

Skills

Strong finance background

Development and operation of financial models

Sophisticated data analysis

Critical and commercial thinking

Expert knowledge of Excel

Understanding of corporate finance principles

Influencing skills

Excellent communication skills

High level of business awareness

Pro-active approach

Education

Accountancy qualification (CCAB) or equivalent

Tools

Microsoft Excel

Job description

Job title Interim Finance Modelling Manager Ref 43686 Division Finance & Commercial Location Hybrid - Clearwater Court - RG1 8DB Contract type Fixed term/Secondment Full/Part-time Full-time Salary Offering up to £90,000 per annum depending on skills and experience Job grade C Closing date 20/01/2026

We are seeking an experienced Financial Modelling Manger to join our dynamic Corporate Finance team on a 12-18 month Fixed Term Contract.

This is a unique opportunity to analyse the key financial drivers of the company, understanding and optimising outcomes for customers, debt investors, shareholders, and relevant regulators. As well as giving a holistic view of the company, this role is unique in its broad scope of skills, requiring technical ability, conceptual thinking, influencing and communication skills.

• Operate and develop the financial and regulatory model with a focus on financeability, investability and customer bills
• Review of in-year and forward looking credit metrics
• Support scenario analysis as part of financial and strategic planning cycle including the Long-Term Viability Statement used in the Annual Report
• Work closely with various internal teams including FP&A, Integrated Business Planning and Regulation to ensure development of robust long-term business plans
• Assist in the calculation of shadow RCV and Return on Regulated Equity (RoRE)
• Ensure the Corporate Model reflects the latest developments in financial regulatory economics and capital structure
• Populate various tables within the Annual Performance Report
• Assist in answering questions from various stakeholders (debt investors, banks and shareholders) on financial forecasts

Location - Hybrid, Clearwater Court, Reading

Hours of work - 36 Hours

What you should bring to the role?

• Flexible individual with a strong finance background, for example accountancy qualified (CCAB) or equivalent
• Experience in development and operation of financial models
• Experience of sophisticated data analysis
• Ability to think critically and commercially, with a high attention to detail, in order to assess business issues and opportunities
• Expert knowledge of Excel and utilisation of the tool for financial modelling.
• Good understanding of corporate finance principles
• Influencing skills with individuals at all levels in the business including senior management.
• Excellent communication, relationship management and presentation skills
• High level of business awareness
• Enthusiastic and pro-active approach

What's in it for you?

This is an exciting time to join Thames Water as we continue to deliver on our turnaround plan, offering the opportunity to become part of our strategic journey.

• Competitive salary up to £90,000 per annum
• Annual Leave - 26 days holiday per year, increasing to 30 with the length of service. (Plus bank holidays)
• Annual Bonus.
• Private Medical Health Care.
• Contributory pension – Defined Contribution - Maximum of 12% -2x employee contribution.
• Personal Medical Assessments – Open to all once a year.
• 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.
• Performance-related pay plan directly linked to company performance measures and targets.

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.

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.