Share this Job

Power BI Developer

Date: 25-Feb-2021

Location: SLOUGH, GB

Company: Telefónica S.A.

Here at O2, we’re about technology that creates exciting experiences. It’s why there are over 25 million people who choose to live life on O2. 


Being part of Telefonica, one of the world’s most creative digital companies, we’re able to open up all sorts of possibilities – not just for customers, but for the people who work for us, too. 


Great benefits. Great rewards. High-quality training. Ongoing career development. Flexible working. These are just some of the reasons we attract great talent. 


Our inclusive approach to recruitment helps us be a true reflection of our customers and their communities. That’s why everybody’s welcome at O2 – it’s time to get everyone in the room. 



Location: Slough


About the Team:


Tesco Mobile is the UK’s largest mobile virtual network operator (MVNO) with over 5 million customers. Tesco Mobile is a joint venture between 2 of the biggest brands in the country and the combination of Tesco’s leading retail estate and O2’s network with 99% UK population coverage provides Tesco Mobile with a unique opportunity.

The Data and Analysis team is a key team within Tesco Mobile and includes. the Data Platforms team, the Data Science team and the team where this role sits the Data Analytics and BI team  Together we serve all areas of the business with the same objective – to leverage the rich data source that is the customer insight database to enable better data-based decisions driving improved outcomes for our customers and so also Tesco Mobile.


Your Role:


You will be joining as a dashboard developer, being the champion for all dashboards across Tesco Mobile Developing dashboards and working closely with the data analysts within the team, who are subject matter experts for different areas of the business, to deliver engaging and insightful self-serve dashboards to be used by colleagues across Tesco Mobile.

Self-Serve Dashboards are a long-established and vital resource within Tesco Mobile and are the primary way that KPI reporting data insights are delivered to the business. We currently have over 40 extensively used dashboards. These cover all areas of Tesco Mobile and are used by colleagues at all levels.

The successful candidate will be joining at an exciting time with a unique opportunity to take Tesco Mobile self-serve BI capability and the businesses use of it to the next level.





  • Responsible for the complete Dashboard estate in Tesco Mobile, ensuring that existing dashboards are constantly being improved, maintained in a dynamic business environment and ensuring the roadmap for new dashboards is being delivered
  • Responsible for driving Self-Serve BI usage across Tesco Mobile through awareness and training
  • Responsible for driving more advanced usage across Tesco Mobile e.g. pushing users to create custom content and utilising the analytical functionality as BAU
  • Manage the publishing of Dashboards – working with the Data Analysts in the Data Analytics and BI team to ensure dashboards follow the agreed Tesco Mobile dashboard framework.
  • Engage with stakeholders understanding their requirements and developing and publishing engaging self-serve solutions
  • Ensure that Tesco Mobiles Dashboard estate has a consistent look and feel
  • Work closely with the Tesco Mobile Data Platforms team in order that Dashboards are scheduled and refreshed adhering to their Development framework
  • Ensure dashboard documentation is completed to high standard and exists for every dashboard


Skills & experience:


  • Excellent at creating business focussed, compelling and insightful self-serve solutions in Power BI
  • Long track record within data visualization
  • Highly numerate and logical
  • Experience in building DAX measures
  • Extensive SQL Server T-SQL scripting for data modelling and developing robust processes
  • Ability to resolve data related problems
  • Can adapt communication for both technical and non-technical people
  • Ability to collaborate and work effectively in a team
  • Comfortable with being the owner of a key business resource within Tesco Mobile and manage this responsibility independently
  • Highly organised enabling you to juggle multiple priorities concurrently


Additional Information:



Grade: PCGU






We’re looking to pay a competitive salary (depending on experience) for this position. We also offer plenty of extras to sweeten the deal, which could include things like bonuses, life assurance cover, health care and lots of flexible benefits.


We also believe a great work-life balance is important, so we’re open to considering part-time and flexible approaches to working.   Like to know more, feel free to raise it.