Finance Business Partner

Closing Date

2026-04-30

Job Title: Finance Business Partner

Location: Durrington (Hybrid working – typically 2 days per week in the office, Mon–Wed)

Contract Type: Permanent

Hours: Full time (flexible working considered)

Salary: £58,000 per annum + excellent benefits

About The Role

This is a high‑impact Finance Business Partner role, embedded within our Developer Services business. You’ll operate as a true standalone partner, working at the heart of a commercially focused, income‑generating area of the business.

You’ll 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.

If you enjoy working in the detail, influencing at pace, and owning financial performance end‑to‑end, this is a fantastic opportunity to make your mark.

What You Will Be Responsible For

• Acting as the primary Finance Business Partner to the Developer Services function, providing strategic and operational financial insight
• Leading the yearly price control income activity for Developer services and be the commercial finance representee in service charges setting process
• Performing complex financial analysis, including trend analysis and financial modelling, to drive performance and cost ownership
• Reporting on key performance indicators, identifying risks, errors, improvement opportunities and cost‑reduction initiatives
• Leading the budgeting, quarterly and mid‑year forecasting cycles, advising on assumptions, trade‑offs and opportunities, and providing sign‑off on plans
• Owning the monthly business review process, preparing insightful presentations and recommendations for senior management and corporate stakeholders
• Supporting financial governance and change initiatives, including providing financial oversight for projects and programmes
• Developing financial controls and forecasting techniques to ensure compliance with regulatory, customer and government requirements
• Producing accurate cash flow, sales, budget and expense forecasts to support effective business planning
• Designing and implementing process improvements, including creating training materials and presenting changes to stakeholders
  
  

Essential

What you’ll bring to the role

• 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.

You’ll be joining at a time of significant change, working alongside a highly skilled leadership team with a clear vision for the future. We offer an environment where experienced professionals can make a real impact, influence major decisions, and drive long‑term value.

At Southern Water, we believe diverse perspectives drive innovation. If you’re passionate about making a difference and feel you can add value — even if you don’t meet every requirement — we’d love to hear from you.

Our Commitment to Diversity

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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