Principal Software Engineer - Personalisation

Define and drive technical strategy, architecture, and engineering standards across the Personalisation domain

Design and deliver scalable systems supporting personalisation, search, recommendations, and ML-powered features

Partner closely with Product, Data Science, and Design to deliver customer-centric solutions

Lead and influence technical decision-making across multiple teams and platforms

Mentor and support senior engineers, helping to raise the overall engineering capability

Improve engineering quality, reliability, and productivity through best practices, tooling, and platform enhancements

An experienced technical leader with a strong background in Java/Python and large-scale production systems

Strong experience working with Machine Learning systems and collaborating with Data Science teams

Skilled in system design and architecture, with the ability to deliver scalable, high-quality solutions

Comfortable working across cross-functional environments with multiple stakeholders

Passionate about growing others and driving engineering excellence

A strong communicator who can influence technical and business decisions at all levels

Everyone’s Welcome

We are ambitious about the future of retail. We’re disrupting, innovating and leading the industry into a more conscientious, inspiring digital era. We’re transforming how we work together and offering our most exciting opportunities yet. Marks & Spencer strives to be an inclusive organisation, trusted and admired by our colleagues, customers and suppliers. Join us and make change happen.

We are committed to building diverse and representative teams, where everyone can bring their whole selves to work and be at their best. We support each other and work together to win together.

If you feel you'd benefit from any support or reasonable adjustments during any stage of the recruitment process, please don’t hesitate to let us know when completing your application. This information will be picked up by our team, so we can try and put steps in place to help you be at your best through this process.