Senior Android Engineer

🔒 Confidential Employer
Posted 28 April 2026
LOCATION
London
TYPE
Full-time
LEVEL
Mid-Senior level
SALARY
£140,000 / year
CATEGORY
Fintech
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

Android Kotlin React Native CI/CD pipelines mobile security best practices cross-platform mobile development native app development

FULL DESCRIPTION

Senior Android Engineer

Company: [Employer hidden — view at passion-project.co.uk]

Location: London

Work Type: Hybrid (2-3 days a week in office)

Salary: £60k - £140k per year

About the Role

We are on a mission to level up our mobile app, and we’re looking for someone to join the team to help build our new Android app, written in Kotlin. You will join our Mobile Platform team, which is responsible for the technical foundations of the app: its architecture, shared capabilities and libraries, core experiences, and the build and analytics infrastructure. The team plays an important role as thought leaders within [Employer hidden]’s mobile community and is accountable for driving our mobile technology forward. [Employer hidden]’s ambition is to become Britain’s best bank, and we have recently launched the [Employer hidden] Account — a high-touch, mass-market product. The mobile app is our most important customer touchpoint, and it needs to be performant, reliable, and delightful. As a result, we are making a deliberate investment in the quality and evolution of our mobile technology. Today, the app is built using React Native, but we are increasingly leveraging native capabilities in Swift and Kotlin. We are in the midst of a significant overhaul of the Android experience, moving toward a more fully native approach, and we’re looking for someone to join us on that journey.

Who you are

  • You are an experienced mobile app developer with a strong track record of building and shipping production Android applications in Kotlin, including publishing apps to the Google Play Store
  • You have a solid understanding of Android frameworks, platform APIs, and native app development best practices
  • You have worked on modern, high-engagement mobile applications, with a strong focus on performance, reliability, and delivering delightful user experiences
  • You treat quality as a first-class concern and have a proven history of raising engineering standards through thoughtful design, testing, and maintainable code. You take pride in your craft and in doing things right
  • You are motivated by opportunities to have broad impact, introducing better processes, tooling, and automation to raise the bar for mobile engineering across teams
  • You have a strong customer focus and a genuine interest in [Employer hidden]’s mission

Desirable Skills

  • Experience applying mobile security best practices in production Android applications
  • Experience working with CI/CD pipelines for mobile apps, including build, test, and release automation
  • Experience collaborating closely with iOS (Swift) and/or React Native engineers in a cross-platform mobile environment

What the job involves

  • You will report to the Engineering Manager for the Mobile Platform team
  • You will work closely with other native mobile engineers to design, build, and evolve the Android platform
  • You will play a key role in migrating the app from React Native to native Android, building in Kotlin with strong architectural foundations and industry best practices
  • You will collaborate with the wider mobile engineering community, including React Native developers, to define best practices for native development and mentor engineers as they cross-train into native Android
  • You will improve the performance, robustness, and overall quality of the app by identifying bottlenecks, addressing technical debt, and fixing defects to optimise the user experience
  • You will collaborate with cross-functional partners – including product managers, designers, and backend engineers to design and deliver features that fully leverage native Android capabilities

Salary Benchmarks

Mobile Engineer

Senior: £60k - £140k

Company Benefits

  • 2-3 days a week in the office.
  • Option of working from abroad for up to 120 days a year.
  • 25 days holiday as standard, rising up to 30 days.
  • Private medical insurance through Vitality Health.
  • Free Headspace access.
  • 16-weeks full pay for all new parents.
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