Data & Analytics Portfolio Manager in Watford

At the heart of everything we do is our vision to change lives every day, and our mission to grow The National Lottery responsibly and champion its impact. Join our journey to create a new experience for The National Lottery and help us to power change for the greater good.

This role sits within the Strategy and Transformation function, and plays a pivotal role in shaping and delivering insight-led data products that drive strategic and operational decisions across Allwyn UK. A key objective of the role is to help establish a more customer-centric decision-making culture at Allwyn. This includes developing analytical products that improve understanding of customer behaviour, value and engagement, enabling the business to make better decisions across acquisition, retention, proposition development and customer experience.

You will work closely with senior stakeholders across Commercial, marketing, Digital and Retail to understand business needs, translate them into analytical solutions, and deliver high-impact insights. You’ll lead the development of scalable data products, mentor junior analysts, and champion the use of data across the organisation.

• Lead the design, development, and delivery of analytical data products that support insight-led business decisions.
• Partner with Consumer Insights colleagues to combine behavioural, transactional and attitudinal research data into a single, holistic view of customers.
• Own the end-to-end lifecycle of data products—from discovery and prototyping to deployment and stakeholder enablement.
• Support ad hoc business reviews focused on key business questions and areas of opportunity, providing rigorous and timely analysis to help drive progress.
• Deliver hands-on analysis using SQL, Power BI, and Python/R, ensuring outputs are robust, scalable, and actionable.
• Translate complex data into clear, compelling narratives tailored to different audiences, including senior leadership.
• Collaborate with data engineering and product teams to ensure data infrastructure supports analytical needs.
• Provide thought leadership on how data, combined with research techniques, can be used to drive value, influence strategy, and improve customer outcomes.
• Promote best practices in analytics, data storytelling, and stakeholder engagement across the team.

Experience applying customer analytics techniques such as customer lifetime value modelling, segmentation, cohort analysis, propensity modelling or retention analysis. Proven experience in stakeholder-facing analytics roles, with a track record of influencing decisions through data. Strong hands-on skills in Python or R, SQL, Power BI (including DAX and Power Query). Experience designing and delivering scalable data products or insight frameworks. Strong understanding of data modelling, ETL processes, and collaboration with data engineering teams. Experience collaborating with Consumer Research and Digital analytics teams and data. Experience mentoring or coaching junior analysts. Familiarity with agile ways of working and tools such as Jira and Confluence.

Analytics programming (Python and/or R); experience of Python or R for advanced analytics techniques, in addition to repeatable analysis, automation, and statistical evaluation. Ability to build automated data products rather than one-off analyses. SQL (advanced); confident querying large, complex datasets in an enterprise data warehouse environment. Ability to write performant, readable SQL for joins, aggregations, window functions, and data validation. Experience reconciling multiple data sources and identifying data quality issues. Business intelligence & visualisation (Power BI); experience maintaining and building self-serve Power BI dashboards and reports, optimising report performance and ensuring consistency of metrics across dashboards. Data quality, validation, and integrity; hands-on experience designing and running data QA checks (completeness, accuracy, consistency), with clear documentation of assumptions, limitations, and methodology. Experience peer reviewing analysis and establishing sign-off processes for high impact outputs.

At Allwyn, we are dedicated to changing lives and growing the National Lottery responsibly, championing its positive impact on people, places, and the planet. Our diverse teams are working hard to make all parts of The National Lottery inclusive – whether people play a game in a store or online, because when everyone can play, everyone wins. At Allwyn, inclusion is built into how we care for our people. Our benefits and policies support colleagues and their families at every stage of life and career. Our people are more than colleagues - they’re winners, driving positive change and making a real difference in communities.

• Company Bonus Scheme
• Matched pension contributions up to 8.5%
• 26 days annual leave + 2 Life Days (and bank holidays)
• Single Private Health Cover
• Complimentary Private Medical
• Flexible Benefits – EV Scheme, Money Coach, Will Writing, Mortgage Advice, Dental and Eye Care Schemes.
• Enhanced Family Leave (Maternity, Paternity, Adoption)
• Wellness Allowance £500
• Employee Assistance Programme
• Discounted Health Assessments
• We are a Disability Confident Leader which means we’ve taken proactive steps to ensure our workplace is accessible and inclusive for disabled and neurodivergent colleagues and candidates.

If you need any assistance or adjustments to this job description or in the application process, please contact a member of the talent team at careers@allwyn.co.uk and we’ll be happy to help.