Senior Data Scientist - Machine Learning

About the role

At Tesco, we believe in the power of spending more time together, face to face, than apart. During your working week, you can expect to spend 60% of your time in one of our office locations or local sites and the rest remotely. We also recognize that life looks a little different for each of us. Some people are at the start of their careers, some want the freedom to do the things they love. Others are going through life-changing moments like becoming a carer, nearing retirement, adapting to parenthood, or something else. That's why at Tesco, we always welcome a conversation about flexible working. Talk to us throughout your application about how we can support you.

At Tesco Technology, we have an outstanding opportunity for an experienced Senior Data Scientist with strong stakeholder management and influencing skills. Join our team and take the lead in redesigning our customers' engagement on our groceries website. By applying sophisticated technologies like semantic search and transformer models, you will play a pivotal role in improving the search functionality for millions of customers across multiple countries. This position allows someone to quickly make a meaningful impact and contribute to the seamless operation of our supply chain, transport, and delivery operations.

About the Team

Join our world-class team of data professionals who are passionate about solving sophisticated business problems and deploying data products at scale. Our team works across various areas of our business, personalizing our customers' experience across all touchpoints, both online and in-store. We are committed to personal and career development, providing on-desk training, support, and dedicating 10% of your working week to learning and professional growth. Additionally, there are opportunities to attend and speak at external and internal events, encouraging individual growth as experts in the field. Our team values work-life balance and cultivates a relaxed yet engaging culture.

This role can be based out of either our London (Farringdon) office or Welwyn Garden City office, offering the flexibility of hybrid working. Spend three days a week in the office and the remainder working from home.

You will be responsible for

• Using your analytical mindset to find solutions to complex problems.
• Understanding difficult business problems and prototyping solutions with minimal support.
• Applying, modifying, and designing algorithms and mathematical models to solve business problems on top of big data architectures.
• Validating, documenting, and presenting the modeling process and performances, as well as communicating sophisticated solutions in a clear, understandable way to non-experts.
• Promoting data science across Tesco and promoting Tesco within 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 an extensive background in machine learning and data mining. A track record in modifying and crafting sophisticated algorithms and applying them to large data sets is crucial.

An ideal candidate will have 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 is preferable, along with a solid understanding of mathematics and statistical principles.

Experience in one or more of the following fields is required: predictive modeling, operational research, deep learning, and time series modeling. Strong programming experience (Python is preferred) is also necessary.

A senior candidate will need to have commercial experience in working with business stakeholders, a record of technical leadership, as well as exposure to supervision, mentoring, and upskilling of more junior professionals.

What's in it for you

We're all about the little helps. That's why we make sure our Tesco colleague benefits package takes care of you - both in and out of work.

• Annual bonus scheme of up to 20% of base salary
• Holiday starting at 25 days plus a personal day (plus Bank holidays)
• Private medical insurance
• 26 weeks maternity and adoption leave (after 1 year's service) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay; we also offer 4 weeks fully paid paternity leave
• Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, and free access to a range of experts to support your mental wellbeing

About us

Our vision at Tesco is to become every customer's favourite way to shop, whether they are at home or out on the move. Our core purpose is 'Serving our customers, communities, and planet a little better every day'. Serving means more than a transactional relationship with our customers. It means acting as a responsible and sustainable business for all stakeholders, for the communities we are part of, and for the planet.

Diversity, equity, and inclusion (DE&I) at Tesco means that whoever you are and whatever your background, we always want you to feel represented and that you can be yourself at work. In short, we're a place where Everyone's Welcome. We're proud to have been accredited as a Disability Confident Leader and we're committed to providing a fully inclusive and accessible recruitment process. For further information on the accessibility support we can offer, please click here.

We're a big business and we can offer a range of diverse full-time & part-time working patterns across our many business areas, which means that we can find something that works for you. We work in a more blended pattern - combining office and remote working. Our offices will continue to be where we connect, collaborate, and innovate.