Job Specifications
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.
We foster a culture of continuous learning, dedicating 10% of the working week to personal development. Our team benefits from academic partnerships, regular knowledge-sharing events and a collaborative, inclusive environment that values work-life balance and professional growth.
You will be responsible for
We are seeking a Senior AI Engineer to be part of a fast-pacing team, to create new customer growth.
Expect end‑to‑end ownership - rapid experimentation, fast shipping, and leaning in wherever the work takes you, beyond your job title. If you’re ambitious, hard‑working, and excited to build 0→1 against tall ambitions, you’ll thrive here.
Design and ship production-grade LLM systems and shared platform capabilities that power experiences for millions, solving cross-cutting pain points with smart build‑vs‑buy decisions. You’ll work end‑to‑end - from rapid prototypes to production code - accelerating GenAI use cases across the business.
While existing knowledge is valuable, a strong ability to learn quickly and apply new skills effectively is essential. The ideal candidate will be solution-oriented, eager to stay current with the latest developments, and comfortable in a fast-paced environment with ample room for creativity and problem-solving.
You will need
Proven experience building and deploying machine learning systems beyond prototyping.
Understanding of LLMs and emerging AI Engineering system design patterns and challenges.
Ability to make well-reasoned decisions grounded in technical understanding and real-world constraints.
Confidence engaging with other technical teams and running collaborative technical sessions.
Familiarity with ML engineering practices and tools such as:
Experiment tracking and reproducibility
Model versioning and lifecycle management
Robust statistical evaluation
Hands-on end-to-end software experience including
System design
Backend/APIs
DevOps and Infrastructure
Experience with Python and common Python libraries
Familiarity with LLM frameworks such as LangGraph, LangChain
Experience with NLP
Whats 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 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
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.
About the Company
We are Tesco, and we're always looking ahead. We use tech to make things a little better for everyone, every day.
Forget off- the-shelf. We love coming up with our own ideas and building things ourselves. We empower our technologists to play a part in Tesco's future. Solving crunchy tech problems, making customers' lives a little easier, and making a difference to our communities and the planet.
Our Technology team is made up of over 3,500 experts spread over 5 countries: UK, Poland, Hungary, Czech Republic and India....
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