About the role
This is a high‑impact Finance Business Partner role, embedded within our Developer Services business. You will operate as a true standalone partner, working at the heart of a commercially focused, income‑generating area of the business. You will support senior stakeholders across regulatory, operational and commercial teams, bringing together income, cost, margin and performance insight to enable confident decision‑making. This role is broader and more self‑contained than many traditional FBP positions, offering real exposure to profit, income and charging mechanisms within a regulated environment.
Key responsibilities
* Act as the primary Finance Business Partner to the Developer Services function, providing strategic and operational financial insight.
* Lead the yearly price control income activity for Developer services and be the commercial finance representee in the service charges setting process.
* Perform complex financial analysis, including trend analysis and financial modelling, to drive performance and cost ownership.
* Report on key performance indicators, identifying risks, errors, improvement opportunities and cost‑reduction initiatives.
* Lead the budgeting, quarterly and mid‑year forecasting cycles, advising on assumptions, trade‑offs and opportunities, and providing sign‑off on plans.
* Own the monthly business review process, preparing insightful presentations and recommendations for senior management and corporate stakeholders.
* Support financial governance and change initiatives, including providing financial oversight for projects and programmes.
* Develop financial controls and forecasting techniques to ensure compliance with regulatory, customer and government requirements.
* Produce accurate cash flow, sales, budget and expense forecasts to support effective business planning.
* Design and implement process improvements, including creating training materials and presenting changes to stakeholders.
Qualifications
* Proven experience in a Finance Business Partnering role.
* Strong commercial finance capability across FP&A, accounting and financial controls.
* Qualified Accountant (CIMA, ACCA, ACA) or qualified by experience.
* Strong analytical skills with the ability to interpret complex financial data and translate it into practical business insight.
* Confidence to challenge constructively, influence senior stakeholders and operate autonomously in a matrix environment.
* Excellent communication and presentation skills, with high levels of integrity and judgement.
Desirable
* Experience working in income‑generating, commercially focused or regulated environments.
* Exposure to revenue/income recognition, charging mechanisms, and opex/capex decision‑making.
* Background in utilities, infrastructure, retail or similarly complex industries.
About Southern Water
Southern Water is at the forefront of transforming Britain's water industry, investing significantly to enhance resilience, sustainability and service excellence. With £7.8bn planned investment for 2025‑30, this is an unparalleled opportunity to join a business committed to delivering a generational shift in the way water services are managed.
Diversity and inclusion
We welcome applicants from all backgrounds, identities and experiences. We are committed to creating an inclusive environment and will make reasonable adjustments throughout the recruitment process.
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