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Data Scientist - Tesco Mobile
  • Python
  • Spark
  • Machine Learning
  • Big Data
  • Excel
  • Data Mining
  • Deep Learning
  • Business Intelligence
Welwyn Garden City AL7
164 days ago
About the role
Tesco Mobile is an MVNO (Mobile Virtual Network Operator) and joint venture between O2 (Telefonica UK) and Tesco. Launched in 2003 we have grown rapidly to become the UK's largest MVNO with over 5m customers. We have a unique position in the market as we benefit from the powerful combination of Tesco’s leading retail estate and massive customer base and O2’s network with 99% UK population coverage. We’ve now been a Which? Recommended Provider for 9 years running. In 2018 we were awarded "Best Pay Monthly Network", “Best Network for Customer Service", “Best Value Pay Monthly” and "High Street Retailer of the Year" at the uSwitch Awards.

The Data & Analytics team lies at the heart of the business with responsibility for Data Platforms, Business Intelligence/Analytics, and Data Science. These three areas work closely together to meet requirements from all directorates of the business.

The Data Science Team focuses on modelling complex business problems and deploying data products at scale both internally and externally across multiple areas including physical stores, online, supply chain, finance, and marketing. We encourage rotation amongst our Data Scientists so they can gain expertise in different subjects.

This is a hands-on position where you will need to leverage your analytical mindset to find solutions to complex problems e.g. customer acquisition strategies, optimising sales channels and campaigns, improved stock management, better marketing effectiveness, maximising customer lifetime value and reducing customer churn.

On any day you could be supporting the automation of decision-making across the business; optimising processes for key business objectives; or conducting deep-dive exploratory analysis to inform strategic decision-making.

You will be responsible for
As a Data Scientist, you will have the following responsibilities:

Understand difficult business problems and prototype solutions with minimal support.
Apply, modify and design algorithms and mathematical models to solve business problems on top of big data architectures (Spark).
Validate, document and present the modelling process and model performance.
Communicate complex solutions in a clear, understandable way to non-experts.
Promote data science across Tesco Mobile and promote Tesco Mobile within Tesco and across the external Data Science community.

You will need
We are looking for ambitious individuals with a mix of statistics, programming and machine learning skills. The role requires that you have an extensive background in machine learning and data mining. A track record in modifying and designing advanced algorithms and applying them to large data sets is essential. The requirements:

A scientific mentality with the ability to ask the right questions, as well as answer them
A strong numerical higher degree in a mathematical, scientific, engineering or computer science discipline
Solid understanding of mathematics and statistical principles
Experience in one or more of the following fields: predictive modelling, operational research, deep learning and time series modelling
Strong programming experience, Python preferred
Strong communication skills
Demonstrable end-to-end project experience with a track record of being able to spot opportunities and drive them through to delivery
Ability to work independently from the Data Science Manager finding your own solutions to problems
Ability to quickly gain knowledge of Tesco Mobile and understand the business. Previous experience of the telecoms industry would be a significant advantage
Ability to work simultaneously across several analytical projects, managing your own time and projects to deliver results with minimal support
Being an active team member, sharing knowledge and best proactive, and mentoring other members of the team

About us
Tesco has become a market leader by doing the little things that really matter for our customers and colleagues. It is part of what makes Tesco such a great place to work and we are proud to have been accredited as one of Britain’s Top Employers again this year.

We are the UK's number one retailer and we pride ourselves on offering a great shopping experience. We are passionate about our food, merchandise and services and will always try to get things right for our customers.

But did you know we also offer great job opportunities? With stores, distribution centres and offices across the UK, we have a vast variety of roles and we are always looking for people who have a hunger to work with customers and colleagues across our exciting business. We believe in treating each other with respect and giving everyone an equal opportunity to get on. It is our people that make the difference every day - helping us make a difference for our customers.

We are proud to have an inclusive culture at Tesco where everyone is welcome and truly feels able to be themselves. At Tesco, we not only celebrate diversity, but recognise the value and opportunity it brings to enable us to serve our shoppers a little better every day. We strive to create a workforce that reflects our customers not only here in the UK, but worldwide. Our aim is to attract and welcome a diverse range applicants from all walks of life and we would love to hear from you!

What’s in it for you
We offer excellent benefits that help make Tesco a great place to work. These include but aren’t limited to:

An annual bonus scheme which you can achieve up to 3.5% of base salary
Colleague Clubcard (including a 2nd card for a family member) after 6 months service with 10% off most purchases at Tesco
Holiday starting at 25 days plus a personal day
A retirement savings plan - 4%-7.5% contribution rate
Life Assurance - 5 x contractual pay
Buy As You Earn Scheme
Save As You Earn Scheme
Deals & Discounts through Tesco including Tesco Mobile & Tesco Bank
Deals and Discounts through many other external businesses

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