Senior Android Engineer – Identity & Secure Mobile Auth

Barclays; Knutsford; Hybrid; GBP 85,000 - 115,000; Full time

Job summary

Barclays is seeking a Senior Android Engineer for Identity Services to design, develop and improve secure native Android authentication features for Barclays' mobile banking app.

You will work with Kotlin, Java, Android SDK, and modern architecture components, collaborating with backend, security and UX teams to deliver high-quality, scalable identity solutions in a hybrid UK office setup (Knutsford or London).

Qualifications

• Deep Android development experience with Kotlin/Java and Android SDK.
• Experience building authentication/identity features on Android.

Responsibilities

• Develop and deliver high-quality Android software
• Collaborate with product/design/engineers to align with business objectives
• Promote code quality through code reviews and testing
• Follow secure coding practices and risk management
• Lead or contribute to multi-year assignments and guide colleagues
• Advise stakeholders on functional and cross-functional impact
• Maintain governance and policies, manage budgets and resources

Skills

Android development

Kotlin

Java

OAuth2/OIDC

AI-assisted tooling

MVVM/Clean Architecture

Dagger/Hilt

Coroutines/Flow

Testing: JUnit/Espresso/MockK

Biometric authentication

Android Keystore/SafetyNet

App security (ProGuard/R8, pinning)

Tools

Ping Identity SDK

Google Play Console

Android CI/CD tooling

Job description

Barclays is seeking a Senior Android Engineer for Identity Services to design, develop and improve secure native Android authentication features for Barclays' mobile banking app.

You will work with Kotlin, Java, Android SDK, and modern architecture components, collaborating with backend, security and UX teams to deliver high-quality, scalable identity solutions in a hybrid UK office setup (Knutsford or London).