Marks & Spencer
Senior Software Engineer
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Senior Software Engineer
Senior Software Engineer (Personalised Search Team)
We’re looking for a Senior Software Engineer within the Personalised Search team to play a pivotal role in evolving the M&S Identity Platform. This team provides the critical software capabilities that power authentication, authorisation, and identity management across M&S digital channels, enabling secure and seamless experiences for millions of customers and thousands of colleagues.
Your "customers" are product teams, engineers, business stakeholders, and millions of M&S customers and colleagues, and your mission is to enable them through secure, scalable platforms, resilient services, and exceptional engineering practices.
This is a role for an engineer who is excited by building large-scale identity solutions, modernising authentication platforms, and delivering secure digital experiences that sit at the heart of every customer and colleague interaction with M&S.
About the Team
Our engineering teams enable product, engineering, and business teams to build and deliver digital 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 Identity Platform team, responsible for the services and capabilities that manage authentication, authorisation, and user identity across the M&S ecosystem.
Key Responsibilities
Your key accountabilities will include:
- Design, build, and evolve secure, scalable, and high-performance authentication and identity services used by millions of customers and colleagues.
- Own features end-to-end, taking responsibility for solution design, development, testing, deployment, monitoring, and production support.
- Help shape the technical direction of the Identity Platform, balancing customer experience, security, performance, and developer usability.
- Develop resilient APIs and backend services that enable secure authentication, authorisation, and identity management capabilities across the organisation.
- Champion engineering excellence through clean, maintainable, and well-tested code, helping establish best practices across teams.
- Actively participate in code reviews, technical discussions, pair programming, and knowledge-sharing initiatives.
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Who You Are
We’re looking for a Senior Software Engineer who:
- Has significant experience building and operating large-scale distributed systems serving millions of users.
- Is highly proficient with Java and/or Kotlin and modern backend development frameworks.
- Has expertise in designing and delivering secure, scalable services within cloud-native environments.
- Strong understanding of DevOps principles, CI/CD pipelines, automation, and operational ownership.
- Comfortable designing systems that balance security, usability, resilience, and performance.
- Has experience with identity and access management technologies, including:
- OAuth 2.0
- OpenID Connect
- Other relevant authentication standards (highly desirable).
Benefits
Being part of M&S is about playing your part to bring the magic of M&S to customers every day. We’re an inclusive, dynamic, and ever-evolving business built on excellence and exceptional service. Here’s what you gain:
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- Colleague discounts: Following successful probation, receive 20% discount across all M&S products and selected third-party brands for you and a dependent.
- Competitive holiday entitlement, with options to purchase additional holiday days.
- Discretionary bonus schemes based on personal objectives and organisational performance.
- Defined Contribution Pension Scheme and life assurance.
- Tailored induction programs and training initiatives to support your career development.
- M&S Choices portal offering discounts to maximise financial and personal wellbeing.
- Industry-leading parental, adoption, and neonatal policies for work-life balance and support.
- Wellbeing initiatives including access to our 24/7 Virtual GP and other health and support services for you and your family.
- A charity volunteer day to contribute to a cause you care about.
Our Commitment to Inclusivity
We’re transforming retail, innovating, and leading towards a more conscious, inspiring digital era. Marks & Spencer strives to be an organisation where inclusivity, diversity, and trust are valued by our colleagues, customers, and suppliers.
We’re committed to building representative teams, foster an environment where everyone can bring their whole selves to work, and collaborate for collective success. If you require any reasonable adjustments or support during the recruitment process, please let us know when applying.
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