Staff Software Engineer - Commercial Trading

Team: Digital & Tech
Store: London Support Office
Location: London, Greater London
Contract type: Permanent
Position type: Full Time
Salary: Competitive + Benefits; Closing date: 8th May 2026

How We Hire

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.

Summary

Summary

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.

All the details

As a Staff Software Engineer in Commercial Trading, 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.

What You'll Do

Software Development: Develop, test, and debug software solutions, taking a lead on what good coding practices look like.

Technical Leadership: Provide expert guidance on complex projects, ensuring that software solutions align both with our strategy, technology standards, and follow engineering best practice.

Architecture and Design: Lead the design of scalable and adaptable software solutions or 3rd party integrations, whilst partnering with colleagues in Architecture.

Code Review: Conduct thorough code reviews to ensure adherence to technical standards, maintainability, automated testing and high-quality code. Foster a culture of continuous improvement.

Collaboration: Gain a deep understanding of our area, working with key business stakeholders, product managers, and other engineers to be able to craft the most effective technical solutions.

Mentorship: Mentor and coach engineers at all levels, sharing your knowledge and experience to help them grow and develop their skills.

Operational Excellence: Ensure our systems are well monitored, with good alerting, and tooling to support incident response and investigation. Ensure learnings are fed back into the development process.

Innovation: Stay abreast of emerging technologies. Propose and implement innovative solutions to improve our operations and enhance customer service.

Who You Are

Proven track record in developing high-performing, robust backend systems and integrations, with a focus on optimisation and scalability.

Deep understanding of software engineering principles, patterns, and practices, applied to the development of maintainable and adaptable code.

Good understanding of automated testing practices and toolsets, and how they are best applied at unit, integration, and system levels, across both back and front-end technologies.

Technical versatility and proficiency in a range of relevant programming languages (e.g. Java, PL/SQL, JavaScript) and tools (e.g. Git, CI/CD pipelines).

Expertise in designing and implementing scalable applications on cloud infrastructure, with a focus on performance and security.

Clear communicator who can convey complex technical concepts to diverse audiences, fostering collaboration and understanding.

Possess a mentorship mindset with a genuine desire to share knowledge and empower others to reach their full potential.

Desirable Experience

Knowledge of the Retail domain, particularly around product lifecycle or merchandise and sales planning, is of interest, but not a necessity

Tech stack

The teams use a variety of technologies, including:

Java, Spring, SpringBOOT, Micronaut

React, Next.js, Typescript, Angular

Azure Cloud, Kubernetes, Dynatrace (observability)

SQL Server, MongoDB

Ignite, Redis

What’s in it for you

Being a part of M&S is exactly that – becoming a part and playing your part. We’re an inclusive, dynamic, exciting, and always evolving business built on core values.

Here are some of the benefits we offer that make working for M&S just that little bit more special…

20% Colleague discount on most things from furniture, fashion and food.

A first-class welcome to M&S with a tailored induction and a wide range of training schemes to help with your learning and development. Having options to progress is something we’re proud of at M&S.

Attractive annual bonus, based on company performance and personal objectives.

Competitive holiday entitlement with the potential to buy extra holiday days!

Amazing perks and discounts via our M&S Choices website. Including GymSave – that offers up to 25% off Gym Memberships and the option to become an M&S Shareholder using our ShareSave & ShareBuy Schemes

Charity Volunteer Day – A paid day away from work to support your chosen charity.

A very generous Defined Contribution Pension Scheme and Life Assurance

Every colleague at M&S has access to a fantastic range of wellbeing support – this includes access to our 24/7 Virtual GP, PAM Assist to support you & your family as well as many other schemes

Everyone’s welcome

M&S is ready to push boundaries to lead the retail industry into a greener, speedier, more inspiring digital era. That’s why we’re revolutionising how we work and offering our most exciting opportunities yet. There’s never been a better time to be part of our team. Marks & Spencer aims to be an inclusive organisation, trusted and admired by our colleagues, customers and suppliers. Join us and make an immediate impact.

We’re an in-person business and have core collaboration days in our Support Centre each week. For most teams, this is 3 working days where we come together to collaborate, innovate, and serve our customers brilliantly.

We are committed to an active Inclusion, Diversity and Equal Opportunities Policy, which starts with our recruitment and selection process, and we are happy to talk flexible working.

If you consider yourself to require reasonable adjustments to any part of our recruitment process, we invite you to share those requirements with us when completing your application. We will make every effort to ensure your needs are met to provide a fair and transparent process of assessment.

Meet the Team

A group of colleagues gathered around a table, smiling and discussing work with laptops open in a modern office setting.

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.

Halford Head of Technical Program Management

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

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

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

Make Your Mark

Upcoming projects

Take part in our M&S Digital & Tech team days. Grow your digital and data skills through our BEAM Academy. Or challenge yourself at one of our business-wide hackathons. We also partner with Women in Data, Databricks and Cajigo to increase opportunities for women in digital and data.

Opportunities to be heard

Your voice and your ideas matter here. Our 8 colleague networks are places to find support, listen to each other and encourage debate. You can pitch ideas ‘Straight to Stuart’, our CEO, or get involved in our BIG (Business involvement Group).

Colleague Networks

We want you to feel supported, no matter what.

Cancer Network

Fostering a supportive and inclusive workplace culture, addressing stigma, providing guidance and raising awareness to empower and assist colleagues affected by cancer.

Culture and Heritage Network

Raising awareness of various religions and cultures through events and comms, to educate others and better represent our M&S colleagues and customers.

Gender Equality Network

Addressing gender-related challenges, raising awareness, and driving action to ensure equal opportunities for all.

Forces Community Network

Supporting colleagues connected to the Armed Forces, aiding their transition to civilian life, and ensuring that they thrive in the workplace.

Family & Carers Network

A support network for parents and carers, offering a space for colleagues to share experiences, exchange ideas, and access useful resources.

Menopause Network

Initiating and encouraging open conversations about menopause by offering support and sharing experiences.

LGBTQ+ Network

Proactively representing LGBTQ+ issues and opportunities to deliver a truly inclusive place to work and shop for our colleagues and customers.

Health and Wellbeing Network

Providing a safe space for colleagues with all types of health conditions or disabilities and supporting with business initiatives to ensure our stores are truly accessible for our customers.

Benefits

Wellbeing hub

Get access to resources to support your wellbeing, including a free virtual GP service.
Giving back

Support your favourite charities by donating through your pay or even volunteering for them.
Pay

Earn a competitive salary.
Colleague discount

After completing your probation period, you'll receive 20% colleague discount across all M&S products and many of our third-party brands for you and a member of your household.

Please note only contracts of more than 12 weeks are eligible for this benefit.
Time off

Competitive holiday entitlement with the potential to buy extra holiday days.
Bonus

We have discretionary bonus schemes depending on your role and our business performance.
Life assurance

Get cover for twice your salary up to age 70 (double with our Pension Plan).
Workplace savings

We’ll help you save through our Pension Savings Plan, Share Buy and Sharesave schemes.
My Choices

Save on everyday costs through discounts and offers and get access to great health benefits.
Cycle to work

Bike/accessory hire with Cycle to Work and save on tax and national insurance.
Smart tech

Buy the latest technology with interest-free financing directly from your salary.

How to Apply

Here’s what to expect at each stage of the application process. This can change depending on the role you’ve applied to. If you need any reasonable adjustments made at any stage, let us know and we can help.

Send us your application

Fill in our short application form and hit submit.

Online assessment

Depending on the role you are applying for, you may be invited to do an assessment. Your Talent Acquisition Partner will guide and inform you along the way.

Interview

We'll invite you to join us for an interview. This could be remote or in person. Here, we'll ask you some role based technical questions and examine the behaviours we're looking for.

Decision

After we’ve made our decision, we’ll be in touch. If you’ve been successful, we’ll officially invite you to join the team and let you know the next steps.