Mobile Software Engineer - Android

Salary: £44,000 - 76,000 per year

Requirements:

• Proven experience developing and shipping Android applications to the Google Play Store
• Strong experience building Android applications using Kotlin and Jetpack Compose
• Experience developing secure, scalable and high-performance mobile applications
• Strong understanding of Android architecture, design patterns and SOLID principles
• Experience with Clean Architecture and object-oriented programming
• Deep understanding of Android components including Activities, Fragments, Services, Content Providers and Broadcast Receivers
• Knowledge of Android lifecycle management and best practices
• Experience monitoring application performance and debugging production issues
• Experience writing automated tests including unit, integration and UI tests
• Experience working within Agile or Scrum delivery environments
• Experience collaborating with designers, product managers and backend engineers
• Experience building and maintaining multi-module applications
• Ability to mentor and support fellow engineers while promoting engineering best practices
• Experience with Android CI/CD pipelines and release automation
• Knowledge of third-party Android libraries and services
• Experience defining and shaping mobile-friendly backend services
• Experience optimising application performance at scale
• Previous experience working within a fast-paced fintech or consumer technology environment
• Passion for product design, user experience and mobile innovation
• Experience building new features and services from scratch in ambiguous environments

Responsibilities:

• Help build and evolve our next generation mobile experience
• Design, build and deliver secure, scalable and high-performing Android applications using Kotlin and Jetpack Compose
• Collaborate closely with designers, product managers and backend engineers to create intuitive, consumer-facing features
• Champion engineering excellence and continuously improve application performance
• Mentor other developers and help shape robust development practices

Technologies:

• Android
• Backend
• CI/CD
• Support
• Kotlin
• Mobile
• UX UI Design

More:

We are a pioneering, fast-changing business shaping finance as a force for good, with a role where you can have impact and do the best work of your career. This is a hybrid London role working full time, with at least two days per week or 40% of your time spent at one of our office sites. We support flexible working and reasonable workplace adjustments, and we are committed to diversity, equity and inclusion. We offer a wide-ranging benefits package including a generous pension contribution of up to 15%, an annual bonus award subject to Group performance, share schemes including free shares, adaptable lifestyle benefits such as discounted shopping, 30 days holiday plus bank holidays, and a range of wellbeing initiatives and generous parental leave policies. We are driven by our purpose to help Britain prosper and provide opportunities to learn, grow and develop within a values-led, inclusive workplace.

last updated 36 week of 2026