Senior Software Engineer – Online (Stock Domain)

Overview

The M&S Stock Domain team is looking for a Senior Software Engineer to join our dynamic team. You will provide technical expertise, ship thoughtful solutions, and operate with excellence. You will lead the modernisation of our order management software to provide a seamless customer experience and enable M&S online growth ambitions through a scalable, reliable, secure and cost‑effective system.

Responsibilities

• Build and evolve reliable data services—design and develop scalable, high-performance pipelines and APIs in Java and Micronaut, integrating with event‑streaming platforms such as Kafka.
• Own features end‑to‑end—from design through development, testing, deployment, and production monitoring—balancing delivery speed with sustainability.
• Shape the technical direction of the Stock Platform—help design and evolve the services, APIs, and event flows that power stock tracking across suppliers, distribution centres, stores and digital channels.
• Champion engineering excellence—write clean, maintainable, well‑tested code and help establish best practices across multiple teams.
• Drive operational excellence and observability—use tools such as Dynatrace to design for monitoring and alerting and participate in the support rota to ensure data remains accurate and available.
• Collaborate widely—work closely with Product Managers, cross‑functional engineering teams and other fulfilment teams to solve real business problems.
• Mentor and support colleagues—provide coaching and feedback to more junior engineers and foster an inclusive environment.

Qualifications

• 5+ years building and scaling data‑intensive distributed systems that handle large datasets, ideally serving millions of records or transactions.
• Proficient in one or more JVM languages such as Java and Kotlin, with experience using Micronaut.
• Experience designing and running CI/CD pipelines (e.g., GitHub Actions) and familiarity with Infrastructure as Code such as Terraform.
• Comfortable working in Azure and familiar with modern data processing and integration tools, including Kafka, SFTP, relational and NoSQL databases (MongoDB), containerisation (Docker, Kubernetes), and Terraform.
• Data modelling and integration expertise—understand domain‑driven design, data contracts, and schema evolution.
• Balanced strategic thinking with pragmatic delivery—able to weigh long‑term architectural goals against immediate business needs.
• Security and quality minded—experience with modern security tools such as Snyk and Semgrep and a commitment to secure coding practices.
• Curious about AI‑assisted development—open to using tools like GitHub Copilot to enhance productivity.

Benefits

• 20% colleague discount on a wide range of products.
• First‑class welcome with a tailored induction and a wide range of training schemes.
• Attractive annual bonus based on company performance and personal objectives.
• Competitive holiday entitlement with the option to buy extra holiday days.
• Perks and discounts via the M&S Choices website, including GymSave and the option to become an M&S shareholder.
• Charity Volunteer Day—a paid day away from work to support your chosen charity.
• Defined Contribution Pension Scheme and life assurance.
• Wellbeing support—including 24/7 Virtual GP and other wellbeing schemes.

EEO Statement

Marks & Spencer is an inclusive organisation, committed to building diverse and representative teams where everyone can bring their whole selves to work. We support each other and work together to win together.

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