Software Developer jobs in United Kingdom

Tesco Mobile • Slough • Permanent • Apply by 18-Feb-2026

As an Android Developer, you'll be at the forefront of our Engineering chapter, working alongside other dedicated Developers and Software/QA Engineers. At Tesco Mobile, we empower our customers to seamlessly manage their products and services through native mobile applications on both iOS and Android platforms. Our Mobile App squad is a diverse and agile team, including iOS and Android Developers, a Product Owner, Business Analysts, QA Engineers, and more.

You will have the chance to create, code, and implement customised solutions that elevate our Tesco Mobile Android app to new heights. Your expertise will play a crucial role in improving our mobile app by introducing new features and custom functionalities. Working in collaboration with cross-functional teams, including business partners, administrators, and fellow developers, you will deliver high-quality solutions that meet our ambitious business goals!

We're all about the little helps. That's why we make sure our Tesco colleague benefits package takes care of you - both in and out of work. Click Here to find out more!

• Annual bonus scheme of up to 20% of base salary
• Holiday starting at 25 days plus a personal day (plus Bank holidays)
• Private medical insurance
• 26 weeks maternity and adoption leave (after 1 years' service) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 6 weeks fully paid paternity leave
• Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing

• Design, develop, and maintain Android applications using Kotlin and Jetpack Compose.
• Ensure the performance, quality, and responsiveness of applications.
• Identify and accurate bottlenecks and fix bugs.
• Continuously discover, evaluate, and implement new technologies to increase development efficiency.
• Write clean, maintainable, and efficient code.
• Participate in code reviews and provide constructive feedback to team members.
• Mentor junior developers and contribute to team knowledge sharing.

• Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent work experience).
• Minimum of 5 years of hands-on experience developing for Android.
• Proficiency in Kotlin and Jetpack Compose.
• Solid understanding of Android SDK, different versions of Android, and how to deal with different screen sizes.
• Experience with RESTful APIs to connect Android applications to back-end services.
• Proficiency in writing and maintaining unit tests to ensure code quality and reliability.
• Proven understanding of Android architecture components (e.g., MVVM, MVP) and their implementation in scalable applications.
• Familiarity with cloud message APIs and push notifications.
• Knowledge of the open-source Android ecosystem and the libraries available for common tasks.
• Experience with offline storage, threading, and performance tuning.
• Understanding of Google's Android design principles and interface guidelines.
• Proficient understanding of code versioning tools, such as Git.
• Bonus: Experience or flexibility with cross-platform development (e.g., Kotlin, Android, or frameworks like Flutter/React Native) is highly advantageous and welcomed.

About us

A 50-50 joint venture between Tesco and VMO2 that was established back in 2003, Tesco Mobile has gone from strength to strength as we've launched into new services and markets. With more than 5 million customers, we're the largest mobile virtual network operator in the UK. We're proud to have an inclusive culture that's uniquely Tesco Mobile, with a strong sense of community, plus all the benefits of working for one of the shareholders.

We care for human connection and we keep our customers at the heart of everything we do, which is why we've embraced the Agile way of working. Agile is more than just a methodology - it's a liberating journey that puts customers and purpose first. It empowers us to self-organise, collaborate, co-create and rapidly inspect and adapt everything we do - allowing us to respond at pace to our customers' needs. It encourages variety of thought and enables us to thrive, both individually and collectively.

We are proud to have an inclusive culture at Tesco where everyone truly feels able to be themselves. At Tesco, we not only celebrate diversity, but recognise the value and opportunity it brings. We're committed to creating a workplace where differences are valued, and make sure that all colleagues are given the same opportunities. We're proud to have been accredited Disability Confident Leader and we're committed to providing a fully inclusive and accessible recruitment process. For further information on the accessibility support we can offer, please click here.

We're a big business and we can offer a range of diverse full-time & part-time working patterns across our many business areas, which means that we can find something that works for you. We work in a more blended pattern - combining office and remote working. Our offices will continue to be where we connect, collaborate and innovate. If you are applying internally, please speak to the Hiring Manager about how this can work for you - Everyone is welcome at Tesco.