Staff Software Engineer (IBM Sterling)

As part of the M&S Software Engineering team, you'll be joining a well‑loved historic brand, working on solutions that serve millions of loyal customers and thousands of colleagues! With ethical values that run right through the company's core and technology leaders that truly understand software engineers and engineering, it's an exciting time as we're redefining ourselves into a digital‑first and engineering‑led organisation, with the quality of our engineering team being a key differentiator.

About the Role

The M&S Online Fulfilment area is looking for a Staff Software Engineer to join our Promising team. You will provide technical expertise, lead the design and delivery of robust solutions, and operate with excellence. Creative, curious and pragmatic, you will lead the modernisation of our order management software to provide a seamless customer experience and enable M&S’s online growth ambitions through a scalable, reliable, secure and cost-effective system.

The Promising team is on a multi‑year journey to build the platforms and services that will provide accurate delivery details to our customers. We sit at a critical junction in the retail ecosystem, and our ambition is to provide accurate, real‑time delivery and collection options so customers can get the products they want, when and where they want them. Our team is steadily evolving towards a future where reliable availability and delivery data from resilient systems create a market leading experience for our customers, driving brand loyalty and revenue.

In this role, you will play a key part in driving our ambition to create a best‑in‑class software engineering team, environment and culture. Join our community of engineers to help build a modern digital ecosystem, work with cutting‑edge technologies, and do the best work of your career.

What you’ll do

• Build and evolve order management and promising capabilities – design and enhance resilient services, APIs and integrations that support accurate delivery promises, inventory visibility and fulfilment decisions across digital and retail channels. Your work will help ensure customers see reliable availability and delivery options throughout the order journey.

• Own features end