Southern Water
Senior Data Analyst
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Closing Date: 2026-08-21
Job Title: Senior Data Analyst
Location: Durrington / Hybrid working
Contract Type: Permanent
Hours: 37 hours per week
Salary: from £45k
About the Role
Southern Water is undertaking one of the most ambitious transformations in the UK water sector. Over the next five years, we will invest £7.8bn to improve resilience, environmental performance, operational performance, and customer outcomes. At the centre of that transformation sits Data, Analytics, and AI. We're building a future where decisions are increasingly informed by evidence, where data becomes a strategic asset, and where analytics helps drive better outcomes for customers, communities, regulators, and the environment.
Our ambition is to become a truly data-driven organisation, embedding analytics into everyday decision-making and ensuring insight is translated into meaningful action. That means moving beyond reporting and dashboards towards deeper understanding, better recommendations, and smarter decisions across every part of the business.
As a Senior Data Analyst, you will play a critical role in making that ambition a reality. This is an opportunity to work on challenging, high-impact problems that matter. You'll partner with stakeholders across the organisation, help shape decisions through evidence and insight, and influence how Southern Water uses data to improve operational and business performance.
For someone who enjoys combining analytical rigour, business understanding, and stakeholder influence, this role offers the opportunity to make a genuine impact while helping build the future of analytics within one of the UK's largest water companies.
About the Role
As a Senior Data Analyst, you'll lead medium-to-high complexity analytical work from problem definition through to decision-ready recommendations. You'll work closely with operational, commercial, and strategic stakeholders to understand business challenges, frame analytical approaches, and deliver clear, actionable insight. You'll help move conversations beyond reporting and into understanding causes, opportunities, and decisions.
Alongside delivering your own analysis, you'll contribute to raising analytical standards across the organisation, helping build a culture where evidence, critical thinking, and curiosity drive better outcomes. This role sits at the intersection of data, business, and decision-making, making it ideal for someone who enjoys solving real-world problems and influencing meaningful change.
What You'll Be Doing
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Solve High-Value Business Problems
- Lead end-to-end analytical initiatives, from understanding the business problem through to delivering recommendations and measurable outcomes.
- Translate complex or ambiguous questions into clear analytical approaches, hypotheses, and success measures.
- Identify opportunities where data and analytics can improve decisions, performance, or customer outcomes.
- Help stakeholders move from intuition-based decision-making towards evidence-based action.
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Deliver Insight That Drives Action
- Design and deliver high-quality analytical products, including dashboards, metrics, models, and decision-support tools.
- Transform complex analysis into clear, compelling stories that influence business decisions.
- Communicate findings confidently to both technical and non-technical audiences.
- Ensure insights are actionable, relevant, and aligned to business priorities.
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Build Trusted Analytical Products
- Develop robust metrics, reusable analytical assets, and automated solutions that support recurring decision-making.
- Ensure analytical outputs are reliable, transparent, and fit for purpose.
- Work closely with data engineering and BI teams to improve data availability, quality, and accessibility.
- Contribute to the development of scalable analytical approaches that can be reused across multiple business areas.
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Raise Analytical Standards
- Review and assure analytical work produced by colleagues.
- Support the adoption of analytical standards, frameworks, and best practices.
- Promote good analytical thinking, quality assurance, and evidence-led decision-making.
- Contribute to the continuous improvement of methods, tooling, and ways of working.
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Support and Develop Others
- Coach and mentor analysts through feedback, collaboration, and knowledge sharing.
- Support the growth of analytical capability across the wider team.
- Contribute to communities of practice, learning initiatives, and capability development activities.
- Help create an environment where analysts are supported, challenged, and able to develop their careers.
What Success Looks Like
In this role, you will help create an environment where:
- Business decisions are supported by trusted evidence and insight.
- Analytical products are reliable, repeatable, and consistently valuable.
- Stakeholders understand both what is happening and why.
- Data is used more effectively to improve operational and business outcomes.
- Analytical capability continues to mature across the organisation.
- Colleagues grow in confidence, capability, and impact.
Most importantly, your work will help ensure analytics creates measurable value and delivers meaningful outcomes for customers, the environment, and the business.
What You'll Bring
Essential
- Proven experience delivering high-value analytical work within a complex organisation.
- Strong capability in problem framing, analytical design, and method selection.
- Experience translating business challenges into clear analytical approaches and recommendations.
- Strong data storytelling and communication skills, with the ability to explain complex findings clearly to non-technical audiences.
- Experience designing and developing metrics, dashboards, models, or analytical products that support decision-making.
- Ability to influence stakeholders, challenge assumptions, and drive evidence-based conversations.
- Experience working with large and complex datasets.
- Strong analytical thinking, curiosity, and problem-solving skills.
- Experience coaching, reviewing, or supporting other analysts through mentoring, feedback, or collaborative working.
- Practical experience using analytical and visualisation tools such as Power BI, Databricks, SQL, Alteryx, or equivalent technologies.
Desirable
- Experience working with modern cloud-based analytics platforms and data ecosystems.
- Knowledge of semantic modelling, data products, or scalable analytics architectures.
- Exposure to advanced analytics, statistical techniques, or predictive modelling.
- Familiarity with data governance, analytical quality assurance, or data ethics.
- Experience working within a regulated or operationally complex environment.
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.
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You will 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 senior professionals can make a meaningful impact, influence major strategic decisions, and drive long-term value creation.
At Southern Water, we believe diverse perspectives drive innovation. If you’re passionate about making a positive impact and think you can bring value to our team, we’d love to hear from you—even if you don’t tick every box. Your unique skills and experiences could be exactly what we need.
If this role isn’t quite what you’re looking for but are keen to be contacted about opportunities at Southern Water, you can register your details here: [Introduce Yourself](myworkdaysite.com- Introduce Yourself)
Our Commitment to Diversity
We welcome applicants from all backgrounds, identities, and experiences. We do not discriminate based on race, ethnicity, gender, sexual orientation, age, disability, religion, or any other protected characteristic. If you need reasonable adjustments during the recruitment process, please let us know.
Additional Information
In line with Southern Water’s security requirements, successful candidates will be required to provide evidence of their identity, eligibility to work in the UK, criminal record check (DBS), and verification of their employment and/or education history for the past three years. Appointment to this role is subject to the successful completion of all pre-employment checks, including security vetting. Please note that if a candidate does not meet the required security standards or fails to pass the vetting process, Southern Water reserves the right to withdraw the offer of employment. Some positions may also require higher levels of security vetting, which may involve providing additional documentation.
Our Purpose
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.
Our Customers
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.
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? While we can’t accommodate every flexible working request, we’ll try to find a practical solution. So why not engage with us
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