AI Data Scientist – Tesco
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About the role
At Tesco, our Data Science team builds scalable solutions to complex business challenges across stores, online, supply chain, marketing and Clubcard. We apply advanced machine learning, generative AI and large language models (LLMs) to personalise customer experiences, optimise operations and drive innovation. We work across several business domains, including customer experience, online, fulfilment, distribution, commodities, store operations and technology. Team members rotate across domains to broaden their expertise and impact.
Responsibilities
You will be responsible for:
* Fast‑paced prototyping, researching emerging tools and technologies, creating benchmarks, setting standards, and contributing directly to production code and fully fledged products.
* Learning quickly and applying new skills effectively to real‑world AI applications.
* Being solution‑oriented, staying up‑to‑date with the latest developments, and thriving in a fast‑paced environment with ample room for creativity and problem‑solving.
Qualifications
* Broad understanding of LLM architectures, training methodologies and usage patterns.
* Practical experience applying LLMs, including
o Managing context windows effectively;
o Selecting appropriate models for specific tasks;
o Implementing safety guardrails and alignment techniques;
o Decomposing complex tasks into model‑friendly components.
* Strong experience evaluating and validating data pipelines and ML systems.
* Familiarity with AI‑specific evaluation methods, including quantitative metrics and qualitative assessments.
* Ability to make well‑reasoned decisions grounded in technical understanding and real‑world constraints.
* Pragmatic approach to experimentation and solution design.
* Actively engaged in learning, staying current with developments, curious, adaptable and committed to continuous improvement.
* Focused on delivering practical, scalable and responsible AI solutions.
Benefits
* 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.
* Free access to a range of experts to support 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’. We are proud to have an inclusive culture where everyone feels able to be themselves and where diversity is celebrated and valued. We are committed to providing a fully inclusive and accessible recruitment process. Our offices continue to be places where we connect, collaborate and innovate; a blended pattern of office and remote working is offered.
Location
London, England, United Kingdom
Seniority Level
Entry level
Employment Type
Full‑time
Job Function
Engineering and Information Technology
Industry
Retail
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