Staff Software Engineer - Web 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 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.

We’re looking for a Staff Software Engineer to join our Web Platform team - a group focused on building tools, frameworks, and capabilities that power every web engineer at M&S. In this role, your customers are engineers. Your focus will be on improving developer productivity, reducing friction, and enabling teams to deliver high-quality web experiences faster and more effectively.

You’ll play a key role in shaping our platform strategy, influencing engineering practices at scale, and building products that engineers love to use. This is a high-impact opportunity for someone passionate about developer experience, modern web technologies, and platform engineering.

What you’ll do

• Design and evolve platform capabilities including shared tooling, libraries, and CI/CD pipelines used across web engineering
• Set technical direction and define standards for web engineering, driving adoption across teams
• Own architectural decisions across areas such as monorepo structure, build systems, and deployment strategies
• Collaborate with engineering teams to understand challenges and improve developer productivity and experience
• Mentor and coach engineers while contributing to hiring and raising engineering standards across the organisation

Who you are

• Experience building internal platforms, tools, or developer-facing products
• Strong expertise in modern web technologies including React, Next.js, and TypeScript at scale
• Deep understanding of CI/CD, DevOps practices, and cloud-based architectures
• Experience with monorepo tooling (e.g. NX) and optimising build performance and workflows
• Strong leadership, mentoring, and stakeholder engagement skills across engineering teams

Tech Stack

• Frontend & Frameworks: React, Next.js, TypeScript
• Tooling & Testing: NX, Playwright, Jest
• DevOps & CI/CD: GitHub Actions, pipeline design
• Cloud & Infrastructure: Azure
• Observability: Dynatrace (or equivalent)

What’s in it for you?

Working at M&S means being part of something bigger - helping to deliver 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.

Here are just a few of the benefits that make working here even more rewarding:

• 20% colleague discount on all M&S products and many third-party brands for you and someone in your household, available once you’ve completed your probation
• Competitive holiday allowance with the option to buy more
• Discretionary bonus schemes linked to your performance and ours
• Strong pension and life assurance to help plan for the future
• Tailored induction and training to support your development from day one
• Exclusive perks and savings through our M&S Choices portal
• Market-leading family policies, including parental, adoption and neonatal leave
• 24/7 wellbeing support, including virtual GP access and mental health services
• One paid volunteer day a year to support a cause that matters to you

Everyone’s welcome

We are ambitious about the future of retail. We’re disrupting, innovating and leading the industry into a more conscientious, inspiring digital era. We’re transforming how we work together and offering our most exciting opportunities yet. Marks & Spencer strives to be an inclusive organisation, trusted and admired by our colleagues, customers and suppliers. Join us and make change happen.

We are committed to building diverse and representative teams, where everyone can bring their whole selves to work and be at their best. We support each other and work together to win together.

If you feel you'd benefit from any support or reasonable adjustments during any stage of the recruitment process, please don’t hesitate to let us know when completing your application. This information will be picked up by our team, so we can try and put steps in place to help you be at your best through this process.

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