Staff Software Engineer – Commercial Trading

Company: Marks & Spencer Plc
Apply for the Staff Software Engineer – Commercial Trading
Location: City of Westminster
Job Description:

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, this is an exciting time as we redefine ourselves into a digital first, engineering‑led organisation, with the quality of our engineering team being a key differentiator.

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 software solutions align with strategy and technology standards and follow engineering best practice.
  • Architecture and Design: Lead the design of scalable and adaptable software solutions or third‑party integrations, 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 craft the most effective technical solutions.
  • Mentorship: Mentor and coach engineers at all levels, sharing knowledge and experience to help them grow and develop their skills.
  • Operational Excellence: Ensure systems are well monitored, with good alerting and tooling to support incident response and investigation. Ensure learnings are fed back into development.
  • Innovation: Stay abreast of emerging technologies. Propose and implement innovative solutions to improve 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 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 back and front‑end technologies.
  • Technical versatility and proficiency in 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

  • Java, Spring, Spring Boot, Micronaut
  • React, Next.js, Typescript, Angular
  • Azure Cloud, Kubernetes, Dynatrace (observability)
  • SQL Server, MongoDB
  • Ignite, Redis

What’s in it for you

Being 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 with a tailored induction and a wide range of training schemes to help with learning and development.
  • 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 (up to 25% off gym memberships) and the option to become an M&S shareholder using 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.
  • Access to wellbeing support, including 24/7 virtual GP and PAM Assist for you and your family.

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.

We’re an in‑person business with core collaboration days at our Support Centre each week. For most teams, this is three working days where we 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 discuss flexible working. If you 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 assessment process.

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Posted: June 27th, 2026