Senior Data Analyst

Allwyn UK
Watford
1 day ago
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Join our journey to create a new experience for The National Lottery and help us to power change for the greater good.


We are Allwyn UK, part of the Allwyn Entertainment Group – a multi-national lottery operator with a market-leading presence across Europe which includes: Czech Republic, Austria, Greece, Cyprus & Italy.


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, large-scale transformation journey by creating a National Lottery that delivers more money to good causes.


We’ll talk a bit more about us further down the page, but for now – let’s talk about the role and who we’re looking for…


A bit about the role…

The Senior Data Analyst reports directly to the Data Engineering Manager and is responsible for analyzing and profiling data to identify data quality issues and inconsistencies.


The Senior Data Analyst works closely with the BI Business Analyst to ensure that the data within the warehouse meets the needs of the reporting requirements and understands how to implement any new reporting needs.


What you’ll be doing…
Design, Development and Dashboarding

  • Developing and maintaining data mappings and transformations to support ETL processes specifically for reporting.
  • Designing and maintaining DWH Data models and specific reporting layer technologies.
  • Designing and creating reports, dashboards and data visualizations to meet business needs.
  • Support data driven approach to customer interaction and business design.
  • Assist the Automation team with the relevant automation parameters.

Effort Estimation

  • Analyse assigned tasks to accurately estimate the level of effort needed.

Collaboration, Engagement & Design Alignment

  • Creating and maintaining data dictionaries and metadata documentation.
  • Collaborating with BI, especially with BI business analysts to support report and dashboard development.
  • Collaborating with data engineers and other teams to integrate data from diverse sources into the data warehouse.
  • Collaborating with data engineers and developers to optimize ETL processes and data workflows.
  • Staying up-to-date with data warehousing and analytics trends and best practices.
  • Conduct peer reviews and regularly synchronize with the engineering and reporting teams to ensure data developments align with reporting dashboards and analytics needs.

Governance & Compliance

  • Implement data governance best practices, ensuring data quality, integrity, and security across developed reports and dashboards.
  • Ensure data accuracy, completeness, and consistency in the data warehouse.
  • Collaborate with Security and Compliance teams to adhere to data privacy regulations and internal policies.
  • Assist in the development and execution of data validation and quality assurance processes.
  • Monitoring and analysing data warehouse performance to identify and address bottlenecks or issues.

Support for Data Ops & Priority Issue Resolution

  • Supporting data warehouse users by troubleshooting data-related issues and providing data insights.

Code Review & Efficient Unit Testing Practices

  • Adhere to the best practices provided by Data Engineering manager and ensure reviews are implemented.
  • Ensure applying the agreed frameworks and writing the test cases.

Key Measures of Success:

1. Timely delivery of development and tasks assigned



  • On-time completion of data insights or feature enhancements.
  • On-time completion of user reports and dashboards for ultimate completion and deployment by either the BI Data Engineers (for data) and BI reporting Team (for final dashboards and reports).
  • On-time completion of deployment of new data insights adhering to the set method of deployment.

2. Data Quality & Accuracy



  • Reduction in data discrepancies and errors across specific reporting layers.
  • Successful implementation of automated data quality checks and alerts.

3. Timely Delivery of Insights



  • Improved speed of data availability for downstream analytics and reporting platforms.

4. Engagement



  • Positive feedback from team members regarding attitude and collaboration.

5. Reporting & External Integration Alignment



  • Smooth collaboration with reporting team and external partners, reflected in consistent implementation as provided by the Data Engineering Manager.
  • Positive cross-functional feedback on data availability, usability, and performance.
  • Successful alignment with product and business goals as measured by project deliverables and feedback surveys.

What experience we’re looking for…

1. Technical Expertise



  • Strong SQL skills for data querying and analysis.
  • Proficiency in data visualization tools (e.g., Tableau, Power BI).
  • Knowledge of data modeling concepts and ETL processes.
  • Familiarity with data warehouse technologies and databases.
  • Data Modeling: Strong knowledge of schema design, dimensional modeling, and normalization best practices.
  • Attention to detail and strong analytical skills.
  • Effective communication and collaboration skills.
  • Problem‑solving abilities to resolve data‑related issues.
  • Understanding of data quality and data governance principles.
  • Basic knowledge of programming languages (e.g., Python) may be beneficial.

2. Communication



  • Excellent communication skills to translate complex data requirements into actionable insights.
  • Proven ability to collaborate effectively with cross‑functional stakeholders (Product, Analytics, Reporting, BI, etc.).

3. Project & Effort Management



  • Experience managing multiple data initiatives simultaneously, prioritizing tasks, and meeting deadlines.
  • Proven track record accurately estimating tasks effort.
  • Strong analytical capability to identify resolutions to issues raised.

4. Educational Background



  • Bachelor's degree in computer science, information technology, or a related field (or equivalent work experience).

5. Additional Qualifications



  • Certification in relevant data analysis or reporting tools is advantageous.
  • Knowledge of Betting and Gaming (Lottery) domain is preferred.
  • Prior experience working with large-scale data environments in a fast-paced or startup-like setting is a plus.

About us:

We’ve developed ground‑breaking technologies, built player protection frameworks, and have a proven track record of making lotteries better.



  • Innovation - We pride ourselves on it! We’re constantly looking for new ways to excite our customers, bringing new products to enjoy which is all underpinned by our responsible play values and making them accessible to all.
  • Giving back – Did you know that playing the lottery generates around £30m a week for charities and good causes in the UK? Our aim is to have doubled this number by the end of the first 10 year licence
  • Sustainability – Our aim to be net zero by 2030 which would make us the first lottery provider globally to achieve this
  • Inclusion and accessibility – We are making all parts of The National Lottery inclusive – whether you play a game in a store or online.

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 and we’ll be happy to help.


Being the custodians of the National Lottery license is a big responsibility, so all of our roles are subject to extensive background checks


An inclusive reward offering with wellbeing at the centre…

At Allwyn, we’ve put together a range of inclusive benefits and policies to support our colleagues at every stage of their lives and careers.


Here’s a list of some of the fantastic benefits we offer…

  • Company bonus scheme
  • Matched pension contributions up to 8.5%
  • 26 days annual leave + 2 Life Days (and bank holidays)
  • Complimentary Private Medical
  • Life Assurance
  • Enhanced Maternity & Paternity leave
  • £500 wellness allowance
  • Access to nutritional advisor and personal trainers
  • Discounted Health Assessments
  • Complimentary Financial coaching

Our benefits and policies reflect our commitment to wellbeing and inclusivity and are enhanced with features that benefit our colleagues (and their families). By offering a variety of benefits that support our colleagues, we continue to create a place of work where people feel rewarded and can succeed.


A place of belonging…

We want 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.


We are a Disability Confident Leader which means we’ve taken proactive steps to ensure our workplace is accessible and inclusive for disabled colleagues and candidates. As part of this we offer an interview to disabled applicants who meet the essential requirements of the job.


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