Senior Transformation Manager

Closing Date

2026-10-19

Job Title: Senior Manager Transformation Portfolio

Location: Durrington / Hybrid

Contract Type: Permanent

About the role

An exciting opportunity has arisen for a Senior Manager Transformation Portfolio to lead portfolio governance, performance insight, benefits realisation and strategic portfolio planning across Southern Water's transformation portfolio. Working closely with senior leaders across the business, you'll provide oversight, challenge and recommendations to support investment decisions, delivery performance and the successful realisation of transformation outcomes.

What you will be responsible for:

• Leading portfolio governance, reporting and performance management across transformation initiatives.
• Maintaining the transformation portfolio roadmap and supporting prioritisation and optimisation activities.
• Identifying and managing portfolio-level risks, dependencies and opportunities.
• Delivering high-quality executive reporting, dashboards and portfolio insight.
• Assuring business cases, benefits forecasts and value realisation across the portfolio.
• Building strong relationships with senior stakeholders and acting as a trusted portfolio management advisor.
• Leading and developing a small team while driving portfolio management best practice and continuous improvement.

Additional Requirements specific to the role

• Occasional travel to Southern Water sites may be required.
• Hybrid working in line with business requirements.
• Line management responsibility for a small portfolio management team.

What you'll bring to the role

Essential

• Significant experience within Portfolio Management, PMO, Transformation, Business Change or Strategic Planning environments.
• Experience managing complex portfolios comprising multiple programmes, projects and change initiatives.
• Strong understanding of portfolio governance, benefits realisation, investment management and delivery assurance.
• Experience producing executive-level reporting, dashboards and performance insights.
• Strong stakeholder management, influencing and communication skills.
• Experience leading and developing teams within portfolio, programme or transformation functions.

Desirable

• Experience within utilities, infrastructure, engineering or other highly regulated environments.
• MoP, MSP, APM, Agile, PRINCE2 or equivalent professional qualifications.
• Experience supporting strategic investment planning and business case governance.
• Experience using enterprise portfolio management systems and reporting tools.
• Experience driving portfolio digitisation, automation and data-led decision making.

Interested? We'd love to hear from experienced portfolio and transformation professionals who are passionate about delivering meaningful business change at Southern Water.

Welcome

Our purpose is big. Our impact is huge. And we know that every single one of us has the power, through our actions, to positively change society and the environment for good. It’s why careers with us have real meaning. Because, if you’re driven and ambitious, we can offer you huge opportunities for personal growth, professional development and constant innovation. Forever evolving. Forever focused on doing the right thing, we empower and encourage everyone to play to their strengths and to help us shape a fair and positive future for all. We believe in Water for Life. If you do too, Dive Right In.

We succeed together

Our customers are at the heart of everything we do, because delivering water for life is our core purpose. To achieve this, we need 24/7 support in place to resolve incidents quickly and efficiently. All our employees understand the importance of out-of-hours incident support – because when problems appear, fixing them is our top priority. That’s why our people join together and support when and however needed to make sure our customers get the service they deserve. Joining the Southern Water family means you’ll become part of our incident support team. During your interview, your manager will speak to you about any incident support rotas that apply to your position.

Need flexibility in your work?

Does this opportunity excite you but you’re not 100% sure if you meet all the requirements for the role? Or are you concerned that ‘normal’ office hours aren’t possible given your personal circumstances? Whilst we can’t accommodate every flexible working request, we’ll try to find a practical solution. So why not engage with us and find out more about this role?