Senior Back End Engineer

ABOUT THE ROLE As the UK’s most successful omni-channel retailer, ecommerce is a key part of our business - we run two of the busiest websites in the UK, driving a significant proportion of our sales.

Our engineering practice includes 80+ teams, working on everything from Cloud platforms to mobile apps, from ecommerce functionality to machine learning.

In addition to your contractual pay, any time worked between 22:00 - 06:00 will attract Night Premium at a rate of £5.00 per hour. This will also apply to existing Partners who have enrolled onto Enhanced Hours Premium arrangements.

• Have a quick glance of our Engineering best practices, see our engineers talk about their experience and opportunities to learn and grow;
  Check out our Tech stack, reach out to us if you have any questions. Visit -
• Flexible Working:
  This is a hybrid working role, therefore your time will primarily be split between working from home (in the UK) and London Head Office / Bracknell Head Office. However, there will also be an expectation to visit other locations as the need arises.
• Salary: up to £71,000 (depending upon experience)
• While most engineers visit the office once or twice a month, occasionally business needs may require more frequent attendance. Our offices are open five days a week for those who prefer to work from the office more regularly.
• Contract type:
  Permanent

• This is an opportunity to join one of our agile product teams working as a Senior Back-End Software Engineer using Kotlin or Java. You will be leveraging your excellent backend skills from your Kotlin or Java background to build and support new features adding value for Our Business
• As a Senior Engineer, you will also use your knowledge of Software Engineering to support the shaping of new projects and support the professional development of less experienced Engineers.
• There are opportunities to become a people manager for your fellow engineers if that is something that appeals to you
• Successful candidates will have a passion for using technology to deliver outstanding and innovative software solutions, and will have a track record of working in teams delivering complex, performant, high quality software.

You would be expected to constantly improve your engineering skills and keep up to date with the latest technologies and techniques. In return for your commitment you will receive the support and resources needed to achieve your learning goals.

• Server side Kotlin or a modern version of Java.
• A structured approach to systems analysis and development.
• Experience with application frameworks such as http4k or Spring Boot.
• An understanding of Agile development methods such as Scrum or Kanban.
• Familiarity with techniques like TDD, pair programming.
• Continuous Integration/Continuous Delivery.
• An understanding of Microservice and Event Driven Architectures.
• REST API development and/or consumption.

• Experience with Cloud Platforms such as AWS, GCP or Azure.
• Docker, Kubernetes.
• Jenkins, Gitlab CI.

• The application form consists of CV upload, followed by application questions. Please visit -  to understand more about application and hiring process
• If you are successful following your initial application, the next stages are: a screening call with a recruiter, tech assessment and two rounds of interviews.
• You'll be asked about any adjustments you might need to support the recruitment process. Please let us know, and we'll be sure to discuss it with you.

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Closing Date: December 24, 2025

Pay: £48,500.00 - £74,000.00 Annual

Contract Type: Permanent

Hours of Work: 35

Job Level: Partnership Level 7

Where You'll Be Working: London Central Office, 1 Drummond Gate, London, , SW1V 2QQ

We’re the largest employee owned business in the UK and home of our cherished brands, John Lewis and Waitrose. We’re not just employees, we’re Partners, driven by our purpose to build a happier world. As we look to our future, there’s never been a more exciting time to join us.

We’re…