Assistant Accountant

Powered by Water, Driven by Purpose

At Pennon Group, we’re proud to serve communities while protecting the environment. Together with our subsidiaries, South West Water, Bristol Water, Bournemouth Water, SES Water, Pennon Water Services and Pennon Power, we’re leading the way in water and renewables.

We’re proud to be recognised as a leader in the UK water sector, working towards a greener future. Our goals? As well as lowering our carbon footprint, we’re working with partners to plant 300,000 trees, restore peatlands and supporting farmers and landowners to improve water quality and wildlife.

Whether you’re starting out or seeking a new challenge, our scale and ambition create opportunities for you to shape your own career.

Ready to make a splash? Join our team today.

Assistant Accountant - Treasury

£31,000 - £34,000 per annum
Exeter based

Are you an ambitious finance professional looking to build a career in treasury within a FTSE-listed group?

At Pennon Group, we're looking for an Assistant Accountant - Treasury to join our high-performing Group Finance team in Exeter. This is an excellent opportunity for someone who enjoys analysing financial data, understanding how funding and debt structures support major infrastructure investment, and wants exposure to a specialist area of finance that has a direct impact on business performance.

Working alongside our Treasury Accountant, you'll gain hands-on experience across treasury accounting, debt and interest reporting, cash management, forecasting, and financial analysis. You'll also have the opportunity to contribute to projects involving refinancing, treasury systems, process improvements and sustainable financing initiatives.

• Supporting treasury accounting and month-end reporting activities

• Producing accurate reporting on debt, interest and cash positions

• Assisting with interest forecasting and financial planning

• Supporting cash management processes across the Group

• Helping maintain treasury management systems and ensuring data integrity

• Supporting half-year and year-end reporting requirements

• Assisting with internal and external audit activity

• Contributing to treasury projects including refinancing, green finance and system enhancements

• Identifying opportunities to improve and automate reporting processes

• Monitoring market activity and developing an understanding of macroeconomic factors impacting treasury performance

We're interested in hearing from candidates who:

• Have experience within a finance, accounting or assistant accountant role

• Enjoy working with large data sets and financial information

• Have strong analytical and problem-solving skills

• Are confident using Excel and financial systems

• Can manage multiple deadlines in a fast-paced environment

• Have a genuine interest in treasury, funding, debt markets, cash management or wider financial strategy

• Are curious, commercially minded and keen to develop specialist treasury expertise

• Can build effective working relationships across different teams and stakeholders

• Studying towards ACA, ACCA or CIMA, or looking to begin a professional accounting qualification

• AAT Level 4, Finance-related degree or Economics degree would be advantageous

This role offers a unique opportunity to build treasury experience within a large and complex organisation. You'll gain exposure to high-value borrowing portfolios, financial markets, forecasting and strategic funding decisions while working within a supportive and collaborative finance team.

We believe in rewarding our people for their hard work and dedication. As our Assistant Account within Treasury you'll enjoy:

• Competitive Salary – Based on experience and skills

• Annual Bonus Scheme – Recognising company performance

• Pension Scheme – Helping you plan for your future

• Flexible Working Options – We value work-life balance and offer flexible hours and hybrid working where possible

• Healthcare Benefits – Access to employee assistance programs

• Employee Discounts – On various products and services

• Annual Leave – Take time to recharge with our holiday entitlement

Closing Date: 23rd November 2026

We may close this vacancy early if we receive a high volume of applications. We encourage you to apply as soon as possible.

Please note that the successful candidate will be subject to a mandatory DBS check as part of the onboarding process.

Be yourself, we like it that way. Together, we will build a culture of belonging, where inclusion is instinctive. Diversity is our strength and a reflection of our communities. We care, we value everyone, we celebrate uniqueness.

Our core values, which are essential to our success, are:

Be Rock Solid - Build trust and be trusted. Be the one we all look to and can depend on.

Be You - We want you to bring your best everyday. Be yourself and make your mark in your individual way.

Be the Future - Embrace change. Drive Progress. Own the challenge.