Marks and Spencer
Senior Software Engineer - Loyalty
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Senior Software Engineer - Loyalty
Senior Software Engineer – Loyalty (Sparks) Platform
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 strong ethical values and a clear ambition to become a digital-first, engineering-led organisation, this is an exciting time to join us.
Our Loyalty (Sparks) team is looking for a Senior Software Engineer to help build and evolve the platform that underpins customer journeys across the Sparks ecosystem. You’ll work in a high-impact, empowered engineering team, delivering scalable, reliable, and high-performing services while shaping the technical direction and improving developer and customer experiences.
This role is ideal for a collaborative, pragmatic engineer who thrives in modern distributed systems and is passionate about engineering excellence, innovation, and continuous improvement.
What You’ll Do
- Build, evolve, and maintain scalable Loyalty platform services supporting Sparks customer journeys
- Take end-to-end ownership of features from design through to deployment, monitoring, and optimisation
- Contribute to technical direction, balancing scalability, performance, and maintainability
- Collaborate across teams to improve developer experience and reduce friction in delivery
- Support live services through shared ownership of reliability, observability, and operational excellence
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Who You Are
- Experience building and scaling distributed systems in modern backend environments
- Strong knowledge of JVM-based languages or backend frameworks (e.g., Java, Micronaut, Spring)
- Hands-on CI/CD, DevOps practices, and operating production systems
- Familiarity with event-driven architectures and technologies such as Kafka
- Experience working with cloud platforms (preferably Azure) and containerisation (Kubernetes)
Tech Stack
- Languages & Frameworks: Java, Node.js, Spring, Micronaut, GraphQL, gRPC
- Testing: JUnit, Mockito, Testcontainers
- Cloud & Infrastructure: Azure, Kubernetes
- Data & Messaging: SQL Server, MongoDB, Redis, Ignite, Kafka
- DevOps & Tooling: GitHub Actions, Dynatrace
- Security & Quality: Snyk, Semgrep, Wiz
What’s in it for you?
Working at M&S means being part of something bigger—delivering quality, value, and service to millions of customers every day. We’re inclusive, fast-moving, and always evolving, with a strong sense of purpose and a focus on doing the right thing.
Key Benefits:
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- 20% colleague discount on all M&S products and many third-party brands (applied post-probation)
- Competitive holiday allowance (with the option to buy more)
- Discretionary bonus schemes linked to performance
- Strong pension and life assurance for financial security
- Tailored induction and training to support your development
- Exclusive savings through M&S Choices portal
- Market-leading family policies (parental, adoption, neonatal leave)
- 24/7 wellbeing support (virtual GP access, mental health services)
- One paid volunteer day annually for a cause you care about
Everyone’s Welcome
We are ambitious about the future of retail, disrupting and innovating to lead the industry into a more conscientious, inspiring digital era. At Marks & Spencer, we strive to be an inclusive organisation, trusted and admired by our colleagues, customers, and suppliers.
We want to build diverse and representative teams, where everyone can bring their whole selves to work. Our culture is one of support and collaboration, where we win together.
If you feel you’d benefit from any support or reasonable adjustments during recruitment, please let us know—we’re here to help ensure you can be at your best.
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