Senior Software Engineer - Financial Services Experience

Team
Digital \& Tech
Store
London Support Office
Location
London, Greater London
Contract type
Permanent
Position type
Full Time
Closing date: 7th July 2026

• Intro


• About the role


• Meet the Team


• People Stories


• Make Your Mark


• Colleague Networks


• Benefits


• How to Apply

Everyone is welcome at M\&S. No exceptions. It’s your background, abilities and differences that make you, uniquely you. And when you’re part of M\&S, that individuality has the potential to make waves.

About the role
------------------

This section tells you all you need to know about the position and its responsibilities, outlining everything we hope to see in a successful candidate.

All the details
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 ethical values that run right through the company’s core and technology leaders that truly understand software engineers and engineering, it’s an exciting time as we’re redefining ourselves into a digital first and engineering\-led organisation, with the quality of our engineering team being a key differentiator. As a Senior Software Engineer, your expertise will help us on this journey, creating solutions for the business that are robust and scalable, with good observability and metrics, following best\-in\-class engineering practice.

The M\&S Financial Services Experience 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. Creative, curious, and fearless, you will be an integral part of our empowered, self\-managing domain engineering team.

The team is responsible for the M\&S Financial Services Experience, a highly visible space where engineering decisions have a direct impact on customers, commercial outcomes, and regulatory obligations. It’s a genuinely interesting area to work in because it combines customer experience, data, experimentation, and complex integrations across multiple partners and systems, with plenty of opportunity to solve real problems and improve how customers interact with M\&S Financial Services

In this role, you will play a key part in driving our ambition to create a best\-in\-class software engineering team, environment, and culture. Join our community of engineers to help build a modern digital ecosystem, work with cutting\-edge technologies, and do the best work of your career.

What you’ll do

• Build and maintain high\-quality, reliable software in the cloud, embracing a 'you build it, you run it' mindset.


• Lead delivery of complex features and backlog items within your team, from design to production, ensuring smooth rollout and minimal operational disruption.


• Own technical delivery within your team, helping break down ambiguous problems into clear, executable plans.


• Design and implement solutions that align with existing architecture and contribute meaningfully to team\-level technical direction.


• Write, review, and release well\-tested, maintainable code that ensures confidence in shipping high\-quality software.


• Improve code quality and consistency by setting standards through PR reviews and best practices.


• Partner closely with Product and Design, collaborating to deliver meaningful customer outcomes.


• Work with adjacent teams when needed to align on shared components and dependencies.


• Actively participate in on\-call support, contributing to operational stability, observability, and performance.


• Coach and support other engineers through pairing, reviews, and mentoring, helping raise the team’s overall capability.


• Contribute to team OKRs and actively support planning, refinement, and roadmap discussions.


• Champion secure coding, reliability, and sustainable engineering practices within your team.

• 5\+ years of owning delivery of complex features end\-to\-end, ensuring quality, performance, and reliability \- not just completion.


• You can take ambiguous problems and turn them into clear technical plans for the team to execute.


• You design solutions that balance speed, maintainability, and long\-term scalability.


• You actively identify technical debt, risks, or inefficiencies and take action to address them.


• You use observability and metrics to validate behavior, debug issues, and improve system health.


• You regularly support and unblock teammates, helping them deliver more effectively.


• You contribute to design discussions, clearly communicating trade\-offs and influencing decisions within your team.


• You help the team operate effectively in production, supporting incidents and driving improvements after failures.


• You can debug complex issues across multiple components, not just your own code.


• You proactively improve testing strategies and code quality, ensuring long\-term confidence in releases.


• You introduce improvements to tooling, CI/CD, or workflows that increase team productivity.

• M\&S utilizes a variety of technologies within the Financial Services Experience, including:


• Front\-end: React, Next.js, TypeScript


• Back\-end: Node.js, GraphQL, REST APIs


• Cloud \& Infrastructure: Azure Kubernetes Service (AKS), Azure Functions


• Observability \& Monitoring: Dynatrace, PagerDuty


• Quality \& Testing: Jest, Playwright, Percy, Axe


• Security \& Scanning: Snyk, Semgrep, SonarCloud


• Experimentation \& Analytics: Optimizely, Adobe, Tealium

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

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.

\#LI\-Hybrid \#LI\-PJ1

Meet the Team
-----------------

Being an in\-person business
--------------------------------

We're at our best when we're close to customers, and for many of us at M\&S, that means working in store every day.

To stay close to customers, our support teams are in the office three days a week as we believe that skills are developed through collaboration, and that spending time together makes us more creative and connected. It also means we can solve problems as soon as they arise, learn and grow as a team, build trust, and get closer to our colleagues.

Janak
---------

Deepak

Halford

Janak
---------

Deepak

Halford

Janak
---------

Deepak

Halford

I think all engineers just love solving puzzles and problems. At M\&S, we’re constantly learning new things, whether it’s mastering Swift UI or understanding how customers interact with technology. But this is also a business that listens to engineers and values what we bring to the table. That’s different, believe me.

Janak (He / Him) \| Staff iOS Engineer Read full story
At M\&S, we have Data Scientists, Analysts, and Technical Product Managers, who all share a genuine passion for harnessing data to improve people’s lives. And we’re in a unique position where we can actually help many different kinds of people, from our customers to our colleagues in store and in our support centre.

Deepak (He / Him) \| Data Scientist Read full story
Being in third\-party brands, working on things M\&S hasn’t done before… that plays to my sweet spot. I’ve worked in many organisations throughout my career, and it’s rare to see such cause and effect in your work. The way we’re structured means you’re encouraged to solve problems and you have the autonomy to make progress quickly.

Halford (He / Him) \| Head of Technical Program Management Read full story
I think all engineers just love solving puzzles and problems. At M\&S, we’re constantly learning new things, whether it’s mastering Swift UI or understanding how customers interact with technology. But this is also a business that listens to engineers and values what we bring to the table. That’s different, believe me.

Janak (He / Him) \| Staff iOS Engineer Read full story
At M\&S, we have Data Scientists, Analysts, and Technical Product Managers, who all share a genuine passion for h

This listing is from indeed. View original listing ↗