Senior PowerBI Developer - Tesco Mobile

Tesco Mobile • Welwyn Garden City or Slough • Permanent • Apply by 23-Jan-2026

This role sits within the central Analytics & Insight Chapter and the PowerBI & Automation Squad, focused on democratizing data across Tesco Mobile. You'll enable stakeholders to access insights easily, understand where to source information, and use it for maximum value.

Working in an Agile environment, you'll collaborate closely with stakeholders to understand their needs and deliver solutions that drive customer-led commercial decisions. You'll combine technical expertise in PowerBI/MS Fabric and SQL with strong communication skills to turn data into clear, actionable insights.

We're looking for someone commercially aware, a confident storyteller, and willing to challenge the status quo, ensuring decisions keep the customer at the heart. You'll provide the "so what" behind the data, delivering insight with impact.

What is in it for you

We're all about the little helps. That's why we make sure our Tesco colleague benefits package takes care of you - both in and out of work. Click Here to find out more!

• Annual bonus scheme of up to 20% of base salary
• Holiday starting at 25 days plus a personal day (plus Bank holidays)
• Private medical insurance
• 26 weeks maternity and adoption leave (after 1 years' service) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 6 weeks fully paid paternity leave
• Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing

You will be responsible for

• Developing, maintaining, and enhancing insightful, visually engaging BI reports and dashboards.
• Translating business briefs into actionable insights using internal and external data sources for a holistic view.
• Driving product performance and stakeholder engagement as part of the PowerBI & Analytics Squad.
• Collaborating with stakeholders to understand needs, challenge briefs, and optimize dashboards based on feedback.
• Applying your expertise to deliver at pace through short cycles of experimentation with a fail-fast, learn-fast mindset.
• Participating in squad ceremonies, raising impediments promptly, and continuously improving ways of working.
• Championing Agile principles to support the growth of agile maturity across the business.
• Acting as an autonomous decision-maker, using your knowledge to deliver the right solutions for customers.
• Providing accurate, timely, and impactful analysis to enable better business decisions.
• Simplifying complex data into clear, actionable insights and communicating them effectively.
• Serving as a trusted insight advisor to squads, building business knowledge, and identifying new opportunities.
• Driving process improvements through efficiencies and best practices.
• Ensuring squads leverage BI tools and feeding new requirements into the PowerBI & Automation Squad.
• Showcasing PowerBI capabilities through training to increase adoption and usage.
• Acting as a subject matter expert, coaching and mentoring less experienced team members.
• Demonstrating integrity and due diligence in all activities.

You will need

• Strong experience in developing BI dashboards and reports (PowerBI/MS Fabric preferred), with the ability to create compelling, actionable, and easy-to-understand visualisations.
• Proficiency in coding complex SQL queries on large relational databases, identifying relevant data sources, and summarising insights effectively.
• Highly numerate, ideally with a degree in Mathematics, Statistics, or a similar discipline.
• Excellent problem-solving skills and the ability to resolve data-related issues logically and efficiently.
• Strong interpersonal and communication skills, able to adapt for both technical and non-technical audiences and manage stakeholders at all levels.
• A genuine interest in extracting insight from large datasets and sharing those insights to drive business decisions.
• Ability to collaborate effectively within squads, work with product backlogs, and self-organise to deliver at pace.
• Highly organised, capable of juggling multiple priorities concurrently.
• Comfortable promoting self-service data solutions and driving adoption across the business.

About us

A 50-50 joint venture between Tesco and VMO2 that was established back in 2003, Tesco Mobile has gone from strength to strength as we've launched into new services and markets. With more than 5 million customers, we're the largest mobile virtual network operator in the UK. We're proud to have an inclusive culture that's uniquely Tesco Mobile, with a strong sense of community, plus all the benefits of working for one of the shareholders.

We care for human connection and we keep our customers at the heart of everything we do, which is why we've embraced the Agile way of working. Agile is more than just a methodology - it's a liberating journey that puts customers and purpose first. It empowers us to self-organise, collaborate, co-create and rapidly inspect and adapt everything we do - allowing us to respond at pace to our customers' needs. It encourages variety of thought and enables us to thrive, both individually and collectively.

We are proud to have an inclusive culture at Tesco where everyone truly feels able to be themselves. At Tesco, we not only celebrate diversity, but recognise the value and opportunity it brings. We're committed to creating a workplace where differences are valued, and make sure that all colleagues are given the same opportunities. We're proud to have been accredited Disability Confident Leader and we're committed to providing a fully inclusive and accessible recruitment process. For further information on the accessibility support we can offer, please click here.

We're a big business and we can offer a range of diverse full-time & part-time working patterns across our many business areas, which means that we can find something that works for you. We work in a more blended pattern - combining office and remote working. Our offices will continue to be where we connect, collaborate and innovate. If you are applying internally, please speak to the Hiring Manager about how this can work for you - Everyone is welcome at Tesco.