Tesco UK • Welwyn Garden City • Full‑Time • Permanent • Working hours 36 • Apply by 07-May-2026
Here at Tesco we focus on solving complex business problems and developing data products that can be deployed at scale to our customers. Our work spans across multiple areas including Stores, Online, Fulfilment, Marketing and Clubcard and we encourage rotation amongst our Data Scientists so they can apply their skills to different business challenges and gain deeper levels of subject matter expertise.
Our core work involves developing data products that can be deployed at scale both internally and externally. 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.
What is in it for you
* 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 6 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
* Owning your technical domain and leading technical engagements with multiple business units
* Line managing Data Scientists and mentoring/coaching the wider team in best approaches to optimisation problems.
* Helping to define the strategic direction the team should take, trading off between contradicting priorities.
* Translating ambiguous business challenges into data science problems and applications.
* Managing, guiding and mentoring the team in their daily work.
* Communicating complex solutions in a clear, understandable way to non‑experts.
* Working end‑to‑end on Data Science developments, contributing to all aspects of the project lifecycle which result in productionised data products.
* Scientifically analysing and evaluating the effectiveness of different approaches to guide future development and tracking the value created by the team.
* Building mathematical models on top of big data architectures to gain deep insights into opportunities to improve the customer experience and the Tesco business.
* Promoting data science across Tesco, and promoting Tesco across the external Data Science community.
You will need
* Specialist knowledge of a technical Data Science domain, preferably in Operations Research and Simulations (other domains may include Machine Learning, Deep Learning, Forecasting, NLP, Statistics).
* Experience with different programming languages and a high level of capability of at least one language – Java, Python, Scala, Go (or similar).
* Ability to influence senior stakeholders on technical topics.
* Experience of leading highly technical Data Science developments involving multiple stakeholders in the area of logistics.
* Experience of coaching/mentoring others in technical approaches.
* Experience of partnering with technology teams to productionise developments and roll out at scale.
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