Senior Software Engineer – Payment Capabilities

Overview

As a Senior Software Engineer on the Payments Platform, you will design and evolve high-volume, secure payment services that power purchases across M&S digital channels. You’ll work with cross-functional partners to deliver reliable, scalable backend capabilities and drive engineering excellence. You will own features end-to-end, shaping the technical direction of a critical platform that underpins online growth. This role offers the opportunity to modernise core systems and improve observability, resilience, and cost efficiency. Join a collaborative team focused on delivering trusted, seamless payment experiences for millions of customers.

Pay / Benefits

• 20% colleague discount across M&S
• discretionary bonus schemes
• Defined Contribution Pension Scheme
• extensive learning and development opportunities
• wellbeing support including 24/7 Virtual GP
• shareholder opportunity via M&S Choices

Responsibilities

• Design, build, and evolve payment services enabling seamless transactions across digital platforms.
• Develop resilient backend services, APIs, and integrations for millions of payment journeys each year.
• Own features end-to-end, including design, development, testing, deployment, and production support.
• Shape the payments platform’s technical direction with emphasis on performance, scalability, security, and cost.
• Champion engineering excellence through clean, maintainable, and well-tested code and best practices.
• Drive operational excellence by building observability, monitoring, resilience, and supportability into systems.
• Utilise Dynatrace to improve platform visibility, monitoring, and service reliability.

Key requirements

• Senior backend software engineer with experience delivering scalable, resilient systems in complex enterprise environments.
• Strong Java expertise with enterprise services, APIs, and distributed integrations.
• Experience designing systems for large user populations with high availability, performance, and security.
• Experience in ecommerce, payment services, or highly transactional systems is advantageous.
• Passion for software quality, testing, maintainability, and engineering best practices.
• Solid understanding of CI/CD, observability, production support, and operational excellence.

• collaboration
• quality-minded
• clear communication
• Java
• backend services
• APIs

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