Senior Software Engineer - Commercial Trading

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 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 within our Commercial Trading domain, your expertise will help drive this transformation by creating robust, scalable and resilient solutions that deliver value across the business. You’ll play a key role in shaping technical direction, improving engineering standards and ensuring our products and platforms are built with strong observability, operational excellence and best-in-class engineering practices.

Due to high interest, this role may close earlier than advertised. We recommend applying as soon as possible.

What You'll DoYour key accountabilities will include:

Develop, test and debug high-quality software solutions, leading by example and championing engineering best practices across the team.

Provide technical leadership within projects, guiding engineers on solution design, implementation approaches and software engineering standards.

Lead the design and delivery of scalable, adaptable software solutions and third-party integrations, partnering closely with Architecture teams where appropriate.

Conduct thorough code reviews to ensure adherence to technical standards, maintainability, automated testing strategies and high-quality code, fostering a culture of continuous improvement.

Collaborate closely with business stakeholders, product managers and engineers to understand business challenges and design effective technology solutions.

Mentor engineers across the team, sharing knowledge and experience to support their technical growth and career development.

Drive operational excellence through effective monitoring, alerting, incident response processes and continuous learning from operational events.

Who You Are Your skills and experience will include:

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

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

Strong understanding of automated testing approaches and associated toolsets, applied effectively across unit, integration and system testing levels.

Technical versatility and proficiency across relevant technologies and tools, including Java, PL/SQL, JavaScript, Git and CI/CD pipelines.

Expertise in designing, building and operating scalable cloud-native applications with a strong focus on performance, security and resilience.

Excellent communication skills, with the ability to explain complex technical concepts to both technical and non-technical audiences and drive alignment across stakeholders.

A collaborative and mentoring mindset, with a genuine passion for sharing knowledge and helping engineers develop and achieve their potential.

Desirable Experience Knowledge of the retail domain, particularly product lifecycle management, merchandising, commercial trading, assortment planning or sales planning, would be advantageous but is not essential.

Tech Stack The team uses a variety of modern technologies, including:

Backend:
Java, Spring, Spring Boot, Micronaut Frontend:
React, Next.js, Type Script, Angular Cloud &

Infrastructure: Azure Cloud, Kubernetes Observability:
Dynatrace Databases: SQL Server, MongoDB Caching &…