Senior Reporting Developer

Join our journey to create a new experience for the National Lottery and help us to power change for the greater good.

About us :

We are Allwyn UK, part of the Allwyn Entertainment Group – a multi-national lottery operator with a market-leading presence in Austria, the Czech Republic, Greece, Cyprus and Italy.  We have been officially awarded the Fourth Licence (10 year licence) to operate the National Lottery starting February 2024.

‍We’ve developed ground-breaking technologies, built player protection frameworks, and have a proven track record of making lotteries better.  Our aim is to create one of the UK’s most inclusive organisations – where people can bring the best of themselves, to do their best work, every day, for the benefit of good causes.

Allwyn is an Equal Opportunity Employer which prides itself in being diverse and inclusive. We do not tolerate discrimination, harassment, or victimisation in the workplace.  All employment decisions at Allwyn are based on the business needs, the job requirements, and the individual qualifications.  Allwyn encourages applications from individuals regardless of age, disability (visible or hidden), sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief and marriage and civil partnerships.

While the main contribution of the National Lottery to society is through the funds to good causes, at Allwyn we put our purpose and values at the heart of everything we do.  Join us as we embark on a once-in-a-lifetime, largescale transformation journey to build a bigger, better, and safer National Lottery that delivers more money to good causes.

Role Purpose :

The Senior Reporting Developer (Power BI) is responsible for designing, building, and maintaining high-quality, scalable, and user-friendly analytics solutions using Power BI. This role focuses on tabular model design, data visualization best practices, and end-to-end report lifecycle management—ensuring that business stakeholders receive accurate, insightful, and timely data.

A strong candidate will have deep hands-on experience with Power BI, including Power Query, DAX, tabular modelling, and efficient data transformations. They will be experienced at Power BI capacity planning, optimizing performance, and integrating Power BI solutions with broader data platforms. The Senior Reporting Developer will be creating reports which would reflect the business needs and will encourage data driven decision making across the business. Proactive proposals of report improvements based on the PowerBI feasibilities and efficient communication with the business stakeholders is also expected from this role.

Power BI Architecture & Development

• Design, develop, and optimize Power BI dashboards, reports, and data models.
• Implement best practices for data transformations (Power Query), DAX calculations, and tabular model design, including unit testing of tabular models to ensure accuracy and reliability.
• Create intuitive layouts and visual designs that drive business adoption, focusing on great user experiences (UX) in reports and dashboards.
• Maintain consistency in visual standards, data definitions, and nomenclature across all reports.

Data Modelling & Integration

Infrastructure, Automation & Capacity Planning

Collaboration, Engagement & Design Alignment

Governance & Compliance

Performance Monitoring & Optimization

Release Planning & Deployment of Reporting Solutions

Reporting Jobs Orchestration & Performance Optimization

Code Review & Efficient Testing Practices

Continuous Learning & Innovation

Mentoring & Knowledge Sharing

Requirements

Technical Expertise

Collaboration & Communication

Problem-Solving & Innovation

Performance Optimization

Educational Background

Additional Qualifications

Benefits