Senior Software Engineer - Capabilities

We’re looking for a Senior Software Engineer to play a pivotal role in evolving M&S’s Payments Platform. This team provides the critical software capabilities that power online payments across the business, enabling millions of customers to complete purchases securely, reliably, and seamlessly across all M&S digital channels.

Your “customers” are product teams, engineers, business stakeholders, and ultimately millions of M&S customers — and your mission is to make them faster, more effective, and more confident through scalable services, resilient integrations, and exceptional engineering practices.

This is a role for an engineer who is excited by building high-volume transactional systems, solving complex payment challenges, and modernising technology platforms that sit at the heart of M&S’s online growth ambitions.

About the Team Our engineering teams enable product, engineering, and business teams to deliver customer experiences with speed and confidence. We create reliable, scalable, and secure platforms rooted in strong engineering standards, automation, and continuous improvement.

You will join the Payments team, helping to modernise and evolve critical payment capabilities.

The Payments team plays a critical role in supporting M&S’s online growth strategy, ensuring customers can purchase with confidence through secure, scalable, and reliable payment experiences.

What You'll DoYour key accountabilities will include:
· Design, build, and evolve payment services and capabilities that enable seamless customer transactions across M&S digital platforms.
· Develop resilient backend services, APIs, and integrations that support millions of customer payment journeys every year.
· Own features end-to-end, taking responsibility for solution design, development, testing, deployment, and production support.
· Help shape the technical direction of the Payments platform, balancing performance, scalability, resilience, security, and cost through modern engineering practices.
· Champion engineering excellence through clean, maintainable, and well-tested code, helping establish best practices across engineering teams.
· Drive operational excellence by designing systems with observability, monitoring, resilience, and supportability at their core.
· Utilise tools such as Dynatrace to improve platform visibility, monitoring, alerting, and service reliability.

Who You Are
· A senior backend software engineer with deep experience designing and delivering scalable, resilient systems in complex enterprise environments.
· Strong Java engineering expertise with experience building enterprise services, APIs, and integrations across distributed systems.
· Knowledge in designing systems that serve large customer populations while maintaining high availability, performance, and security.
· Work with ecommerce platforms, payment services, or highly transactional systems is advantageous.
· Passionate about software quality, testing, maintainability, and engineering best practices.
· Strong understanding of CI/CD, observability, production support, and operational excellence.

What’s in it for you Being a part of M&S is exactly that – playing your part to bring the magic of M&S to our customers every day. We’re an inclusive, dynamic, exciting, and ever-evolving business built on doing the right thing and bringing exceptional quality, value, service to every customer, whenever, wherever, and however they want to shop with us.

Here are some of the benefits we offer that make working for M&S just that little bit more special…
· 20% colleague discount across M&S products and selected third-party brands.
· Competitive holiday entitlement with the potential to buy extra holiday days.
· Discretionary bonus schemes awarded based on…