Mobile Application Developer

Coforge; Sheffield; Hybrid; GBP 70,000 - 95,000; Full time

Job summary

Coforge in Sheffield, UK is seeking a Senior Mobile Engineer focused on Android development. You will deliver secure, scalable mobile banking solutions and contribute to design, development and enhancement of enterprise apps while ensuring strong UX, performance and accessibility.

The role requires 8+ years in Android, strong Kotlin and MVVM/MVI, REST API integration, and collaboration across Product, UX/UI, Architecture, and Engineering teams.

Qualifications

• 8+ years of experience in Android/mobile development.
• Strong experience with Kotlin for Android development.
• Solid understanding of Android architecture patterns (MVVM/MVI).
• Experience integrating REST APIs and backend services.
• Experience with CI/CD pipelines and modern development practices.

Responsibilities

• Develop and maintain native Android applications using Kotlin.
• Implement new features and enhance existing mobile app functionality.
• Debug, troubleshoot and resolve production and development issues.
• Collaborate with Product, UX/UI, Architecture and Engineering teams.
• Ensure applications meet security, performance and accessibility standards.
• Participate in Agile ceremonies, code reviews and technical discussions.
• Contribute to reusable frameworks, best practices and engineering standards.

Skills

Kotlin

Android SDK

REST API

CI/CD

Tools

Git

Job description

Role: Senior Mobile Engineer - Android (Mid-Level / Senior)

Location: Sheffield, UK

Work mode: Hybrid – 3 days weekly from office

Skills: Android development using Kotlin, Android SDK, Rest API and CI/CD.

Experience: 8+ Years

We at Coforge are looking for Sr. Mobile Engineer in Sheffield, UK.

Role Overview

Top bank is seeking talented Mobile Engineers specializing in Android development to deliver secure, scalable and accessible mobile banking solutions. The successful candidate will contribute to the design, development and enhancement of enterprise mobile applications while ensuring exceptional user experience, performance and accessibility compliance.

Key Responsibilities

• Develop and maintain native Android applications using Kotlin.
• Implement new features and enhance existing mobile application functionality.
• Debug, troubleshoot and resolve production and development issues.
• Collaborate with Product, UX/UI, Architecture and Engineering teams.
• Ensure applications meet security, performance and accessibility standards.
• Participate in Agile ceremonies, code reviews and technical discussions.
• Contribute to reusable frameworks, best practices and engineering standards.

Required Technical Skills

• Strong experience with Android development using Kotlin.
• Solid understanding of Android SDK, Jetpack components and modern architecture patterns (MVVM/MVI).
• Experience integrating REST APIs and backend services.
• Knowledge of unit testing, UI testing and automation frameworks.
• Proficiency with Git, CI/CD pipelines and modern development practices.
• Strong debugging, troubleshooting and problem-solving capabilities.

Accessibility & UX Requirements

• Strong understanding of mobile accessibility principles.
• Experience implementing WCAG guidelines and Android accessibility features.
• Knowledge of screen readers, accessibility testing tools and inclusive design practices.
• Ability to identify and remediate accessibility issues within existing applications.
• Lead technical design discussions and mentor engineers.
• Participate in cross-platform whiteboard system design exercises.
• Drive architecture decisions focused on scalability, resilience and maintainability.
• Balance accessibility, performance and business requirements within solution designs.

Assessment Alignment

• Real-world coding assessment involving debugging and enhancement of an existing codebase.
• Hands‑on coding expected in Kotlin or relevant mobile development language.
• Mid‑level candidates assessed on Android development and accessibility scenario‑based questions.
• Senior candidates evaluated through advanced system design discussions, including cross‑platform accessibility considerations.

Preferred Experience

• Experience in Banking, Financial Services or regulated industries.
• Exposure to mobile security frameworks and secure coding practices.
• Knowledge of cloud‑native and DevOps engineering practices.