Principal Software Engineer, Customer Platform

Company: Marks and Spencer
Apply for the Principal Software Engineer, Customer Platform
Location: London
Job Description:

Marks & Spencer is seeking a passionate Principal Software Engineer to join the Customer Platform team, driving modernisation of mission-critical systems as we scale. You will collaborate with cross-functional teams to design, build, and maintain software powering our warehouse operations.

Reporting to the Senior Head of Software Engineering, you will lead by example in engineering excellence, advocate for clean code, and mentor senior engineers across the landscape, fostering innovation and

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Posted: October 1st, 2026