Southern Water
Senior Business Intelligence (BI) Engineer
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Closing Date 2026-08-28
Senior BI Engineer
Location: Hybrid – Durrington
Hours: 37 hours per week
Contract: Permanent
Salary: Starting from £50,000 plus benefits
Who are we?
Southern Water is building a modern, trusted data platform to support better decision-making, regulatory performance and customer outcomes. Our Business Intelligence teams play a critical role in turning complex data into clear, actionable insight across the organisation.
This is an exciting opportunity to join a newly formed BI Engineering team and help shape how business intelligence is delivered, governed and improved across Southern Water.
The role
As a Senior BI Engineer, you will help lead the day-to-day delivery of BI solutions within a domain-aligned agile squad. This role would suit an experienced BI Developer or BI Engineer who is ready to take the next step into technical coordination, mentoring and delivery leadership.
You do not need to have done every aspect of the role before, but you will need strong Power BI and semantic modelling experience, good SQL skills, strong communication, and the confidence to support other BI developers.
You will act as a key link between business stakeholders, Product Owners, Data Modellers, Data Engineers and Platform teams — helping translate business needs into practical, scalable and well-governed BI solutions.
The role includes hands-on BI development, technical guidance, squad-level coordination and mentoring. It is ideal for someone who enjoys building high-quality BI solutions, but also wants to help shape standards, improve ways of working and support the team to deliver effectively.
What you’ll be doing
- Designing, building and maintaining Power BI reports, datasets and semantic models
- Helping translate business requirements into clear, practical BI solutions
- Supporting day-to-day BI engineering delivery within a domain-aligned squad
- Coordinating work across BI Engineers, Data Modellers and Data Engineers
- Supporting prioritisation, backlog refinement and delivery planning
- Acting as a bridge between business stakeholders and technical delivery teams
- Applying good practice in Power BI performance, usability, security and access control
- Documenting report logic, data sources, measures, definitions and model design
- Supporting the development of certified metrics and a single version of the truth
- Reviewing and improving existing BI assets, models and reporting processes
- Using SQL and modern data platform tools to validate data and support report development
- Supporting data quality, governance and compliance requirements within BI solutions
- Mentoring and guiding BI Engineers, including sharing knowledge and reviewing work
- Helping establish reusable BI standards, patterns and delivery processes
- Contributing to agile ceremonies and continuous improvement across the BI community
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What we’re looking for
We are looking for someone with strong BI development experience who can combine technical capability with good communication, stakeholder engagement and team working.
You may already be working as a Senior BI Engineer, or you may be an experienced BI Developer / BI Engineer ready to step into a broader role with more ownership, coordination and mentoring.
Essential skills and experience
You’ll need:
- Strong experience developing Power BI reports, datasets and semantic models
- Good understanding of DAX, Power Query and Power BI performance considerations
- Strong SQL skills and experience working with relational data sources
- Understanding of data modelling concepts, including dimensional or semantic modelling
- Ability to gather, document and translate business requirements into reporting solutions
- Good communication skills, including the ability to work with non-technical stakeholders
- Experience working as part of a technical delivery team
- Ability to support, mentor or guide other BI developers
- Awareness of data quality, governance, security and access control principles
- A proactive approach to problem solving, documentation and continuous improvement
Desirable skills and experience
It would be helpful if you also have experience with:
- Databricks, Python or PySpark
- Azure Data Lake, Delta Lake or other modern cloud data platforms
- Row-level security and access controls in Power BI
- Deployment, release management or monitoring of BI solutions
- Agile delivery methods and tools such as Jira or Confluence
- Metadata, lineage, data cataloguing or governance tooling
- Domain-oriented, product-based or data mesh-style teams
- Previous formal line management or team leadership experience
Qualifications
Essential or equivalent experience:
- Relevant hands-on BI, reporting or analytics engineering experience
Desirable:
- Microsoft Certified: Power BI Data Analyst Associate
- Databricks certification or relevant practical experience
- Degree in Computer Science, Data Engineering, Analytics or a related discipline
- Scrum Master certification or equivalent delivery leadership experience
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Why join us?
- Join a newly formed BI Engineering team with the opportunity to help shape how it works
- Take the next step from BI development into technical coordination and delivery leadership
- Work closely with the business to deliver insight that supports real decisions
- Help build trusted, reusable and well-governed BI solutions across Southern Water
- Develop your skills across Power BI, semantic modelling, modern data platforms and agile delivery
- Support and mentor other BI Engineers while continuing to stay close to the technology
- Be part of Southern Water’s wider data and analytics transformation
Hybrid and flexible working
Competitive salary, pension, bonus and a comprehensive benefits package
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 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?
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?
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