Performance Specialist

Closing Date

2026-07-06

There has never been a more important time to join Southern Water. As we move through AMP8, we are delivering one of the most ambitious capital investment programmes in the industry, focused on improving service resilience, environmental performance and long‑term affordability for customers.

The Customer Strategy, Insight and Experience team is responsible for reporting and investigation of issues which improve process for the customer and the company. We provide key facts and insight to empower the wider team to make the right decisions for the right reasons.

 

About the role

 

This Performance Analyst role (internally will be known as Performance Specialist) is responsible for the provision of performance and management information for and about internal and external stakeholders, related to the Southern Water Wholesale Services Division. General duties include investigating, building, processing, reviewing, analysing and reporting of performance and related issues, as well as supporting on regulatory and process change. Working closely with other roles across the department this role is busy, interesting and diverse.

What you will be responsible for: 

• Deliver timely, fit for purpose, reporting within agreed SLAs. Continuously improve the efficiency of reports to add value and allow for the focus to be on analysing the data rather than processing it. 
• Produce performance reporting from numerous data sources regarding business level performance vs targets and process regulatory performance. This will require you to develop an in-depth knowledge of processes and systems to ensure accuracy across many customer focussed roles.
• Transform data into clear visualisation to meet the stakeholders needs and allow them to see the complete picture. 
• Support the wider team by providing the information required to make informed decisions on a wide range of topics (including provision of data to external stakeholders such as MOSL, WaterUK and Ofwat). 

 

What you’ll bring to the role: 

• Good understanding and working experience of compiling and generating performance reports and management information. 
• Strong data handling, technical skills and experience with information validation using Excel and other analytical tools.
• Data manipulation skills and experience. 

• Experience working with reporting and analysis packages and extracting data from corporate systems (e.g. Service Now or other CRM’s, Qlikview, Alteryx, Power BI or similar).
• Ability and confidence to communicate appropriately with a range of audiences including peers, senior colleagues and specialists at all levels of the organisation

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 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)

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 preemployment 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.