Senior Android Engineer – Kotlin/Flutter, FinTech

Queen Square Recruitment Ltd; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Queen Square Recruitment Ltd is working with a major financial services client to hire a Senior Android Engineer for a Consumer Servicing and Engagement team in Greater London. You will design, develop and maintain secure, scalable Android apps using Kotlin and Flutter, with Jetpack Compose and Material Design for modern UI.

Strong experience with MVVM/MVI/MVC/Clean Architecture and API integration is required.

Qualifications

• 8+ years of software/mobile engineering experience.
• Expertise in Android Studio and Jetpack Compose.
• Experience with Material Design and modern Android UI development.
• Strong knowledge of core Android components: Activities, Fragments, Services, Broadcast Receivers, Content Providers.
• Experience with MVVM, MVI, MVC or Clean Architecture.
• Experience with push notifications, background processing and Android lifecycle management.
• Strong debugging, performance optimisation and memory management skills.
• Experience with JUnit and Espresso for unit/UI testing.
• Version control using Git, GitHub or GitLab.
• CI/CD experience using Jenkins, Bitrise or GitHub Actions.
• Agile / Scrum delivery experience.
• Experience building secure mobile applications.
• Financial Services / Banking experience.

Responsibilities

• Design, develop and maintain Android applications using Kotlin and Flutter.
• Build modern, responsive user interfaces using Jetpack Compose and Material Design.
• Develop and maintain Android components including Activities, Fragments, Services, Broadcast Receivers and Content Providers.
• Apply architectural patterns such as MVVM, MVI, MVC and Clean Architecture.
• Integrate RESTful APIs, GraphQL services and third-party platforms.
• Implement push notifications, background services and application lifecycle management.
• Optimise application performance, responsiveness, memory management and stability.
• Debug and resolve application issues across different Android versions and devices.
• Develop automated unit and UI tests using JUnit and Espresso.
• Build reusable Android components and contribute to shared mobile libraries.
• Participate in code reviews and maintain engineering standards.
• Collaborate with designers, backend developers and product teams to deliver secure, production-ready applications.
• Support application builds, testing and deployment processes.

Skills

Kotlin

Flutter

Android Studio

Jetpack Compose

Material Design

MVVM

MVI

MVC

Clean Architecture

RESTful APIs

GraphQL

Push notifications

Unit Tests

UI Tests

Git

CI/CD

Agile/Scrum

Tools

Android Studio

GitHub

GitLab

Jenkins

Bitrise

Job description

Queen Square Recruitment Ltd is working with a major financial services client to hire a Senior Android Engineer for a Consumer Servicing and Engagement team in Greater London. You will design, develop and maintain secure, scalable Android apps using Kotlin and Flutter, with Jetpack Compose and Material Design for modern UI.

Strong experience with MVVM/MVI/MVC/Clean Architecture and API integration is required.