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Solution Designer

Date: 10-Sep-2022

Location: SLOUGH, GB

Company: Telefonica S.A.

Tesco Mobile is the UK’s largest MVNO with over 5 million customers and industry leading customer satisfaction.  We’re a totally unique business, a 50/50 joint venture between Telefonica O2 and Tesco that launched back in 2003.

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 – it’s time to get everyone in the room. 


Location(s): Slough, Welwyn Garden City or Manchester

Closing Date: 02/10/22


About the role


As a member of the Architecture & Solution Design Chapter working in a Squad or Tribe you will:

  • Belong to a cross-functional Squad or Tribe who is responsible for end-to-end delivery of a product that delivers customer value.
  • Bringing individual expertise from your Chapter to the cross-functional squad to deliver for the customer at pace using short cycles of experimentation with a ‘fail-fast-learn-fast’ attitude.
  • Participates in all squad or tribe ceremonies and events, raising impediments as soon as they are identified to facilitate organisational flow.
  • Inspecting and adapting their way of working for continuous improvement.
  • Embodying an Agile mindset and culture to contribute to the growth in agile maturity of our business.
  • Will work in cycles of sprints, using priorities set through the product backlog.
  • The squad or tribe member will be an autonomous, trusted decision maker able to self-organise to use their chapter knowledge and expertise to deliver the right solution for the customer.
  • Continuously acting with integrity and due diligence.


Key Responsibilities


  • Collaborating to create the end-to-end solution design aligned to agreed business requirements.
  • Identifying the impacted systems and interfaces for initiatives, aligned to the Target Architecture.
  • Supporting the definition and validation of Acceptance Criteria.
  • Translating User Stories to articulate the technical scale of an initiative to support MVP definition aligned to strategic priorities.
  • Support end-to-end testing, providing input to defect triage to ensure alignment with acceptance criteria.
  • Acting as a key contact during post-implementation hyper care to ensure initiatives land smoothly.
  • Collaborating across squads and tribes to ensure the solution is aligned to the Acceptance Criteria and our Target Architecture.
  • Providing design expertise to support the definition of ready and the definition of done.
  • Support the RFI/P/Q process offering end-to-end architecture & design considerations as early as possible.


Key Artefacts:


  • High Level Impact Assessment
  • Context Diagram
  • Solution Narrative
  • Sequence Diagrams
  • Business Rules & Logic


What We Need from You:


Essential Skills:


  • Proven experience working in Telecoms Industry, or similar IT-based role.  
  • Engineering or IT-related degree level qualification or equivalent.
  • Solid technical background, including experience with one or more of: self-care systems, webservices, billing, hardened APIs, eCommerce, and retail systems
  • Good communications skills, with the ability to explain the impact of different options or issues to non-technical stakeholders
  • Proven track record of delivering solutions across multiple supplier platforms and impacting on multiple stakeholders, in a timely fashion and with minimal post-live issues.
  • Logical and creative thinker
  • Pragmatic approach to problem solving




We’ll be sending you emails about the status of your application. To make sure you receive these,   please add and to your Safe Senders list.

We’re looking to pay a great compensation package (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.  

Also, every employee has their personal development supported with a LinkedIn learning account; plus other role specific learning available through our award-winning digital learning platform - O2 Campus. 

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

Join us and we’ll encourage you to be bold every day. So take a deep breath, your career is about to go to exciting new places. 

We have recently announced that we will be moving towards a more blended working week – combining office and remote working, leveraging the advantages of face-to-face connectivity and enjoying the flexibility and productivity of remote working.

Our base will be the office, where we connect, collaborate and innovate – and there will be the expectation for everyone to be physically together more time than apart.  For Head Office roles we therefore expect colleagues to spend a proportion of their time in the office location listed on the job description.

We are supportive of colleagues having conversations with hiring managers about what office presence will look like in the context of the role

If you have any questions around the role then please email who will be happy to help.