Data Scientist

Tesco UK  •  London  •  Full-Time  •  Apply by 31-Aug-2025 About the role As a Data Scientist within the online team, you will influence the search and online experience on the Tesco website by utilising advanced technologies and collaborating with a team of seasoned Data Scientists, Machine Learning Engineers, and Software Engineers.This role is based out of our London (Farringdon) office, offering the flexibility of hybrid working. Spend three days a week in the office and the remainder working from home.
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, personalising 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 individuals' growth as experts in the field. Our team values work-life balance, team days, and cultivates a relaxed yet engaging culture. What is 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. Click Here to find out more!   

• 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 years’ 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, free access to a range of experts to support your mental wellbeing 

You will be responsible for • Applying, modifying, and designing algorithms and models for information retrieval and re-ranking • Advising on the systems architecture, Machine Learning components, and associated technologies • Using data to train and fine-tune models • Developing efficient and high-quality code in Software Engineering • Collaborating closely with Search Engineers, ML Engineers, and Data Scientists • Promoting data science internally and effectively communicating sophisticated solutions to non-technical colleagues You will need To excel in this role, we are seeking high-reaching individuals with a strong blend of Machine Learning and Software Engineering skills. The following requirements are important:• Commercial experience as a Data Scientist or a PhD in a relevant field such as Mathematics, Engineering or Computer Science• Hands-on expertise with Semantic Search, LLMs, Deep Learning, Recommender Systems or Information Retrieval• Strong coding skills, preferably in Python and a solid grasp of effective methods in Engineering, including version control, development driven by testing, and Continuous Integration• Desirable: Experience with Hybrid Search approaches and Vector Databases combined with experience of working with Search Engine frameworks, preferably Elasticsearch 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.    We are proud to have an inclusive culture at Tesco where everyone truly feels able to be themselves. At Tesco, we not only celebrate diversity, but recognise the value and opportunity it brings. We're committed to creating a workplace where differences are valued, and make sure that all colleagues are given the same opportunities. We’re proud to have been accredited 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.  If you are applying internally, please speak to the Hiring Manager about how this can work for you - Everyone is welcome at Tesco.