DE-Cross-Platform Mobile Developer React Native - Senior-GDSF02

At EY, you’ll have the chance to build a career as unique as you are, with the global scale, support, inclusive culture and technology to become the best version of you. And we’re counting on your unique voice and perspective to help EY become even better, too. Join us and build an exceptional experience for yourself, and a better working world for all.

Cross-Platform Mobile Engineer

Experience: 4 - 8 Years

Mobile Strategy & Delivery Excellence

Role Summary

We are seeking a Cross-Platform Mobile Engineer with strong hands-on experience in React Native or Flutter, combined with mandatory native development experience in either Android (Kotlin/Java) or iOS (Swift/Objective-C). The engineer will build scalable, high-performance mobile apps, contribute to reusable components, and ensure high-quality implementation aligned with Mobile Practice standards.

Key Responsibilities

• Develop mobile apps using React Native or Flutter with robust, clean, maintainable code.
• Use native iOS/Android knowledge to build bridges, custom modules, platform-specific features, and optimize performance.
• Integrate REST/JSON APIs, analytics, secure storage, push notifications, and platform services.
• Build modular, reusable UI components and contribute to shared libraries.
• Ensure performance optimization, debugging, crash analysis, and responsiveness across devices.
• Work with designers to deliver pixel-perfect UI and ensure accessibility compliance.
• Collaborate with backend, architects, QA, and DevOps teams for seamless delivery.
• Write unit tests and follow secure coding, dependency management, and CI/CD best practices.
  

Required Skills

• Strong experience in React Native (JavaScript/TypeScript) or Flutter (Dart).
• Mandatory hands-on native experience in:
• Android: Kotlin/Java, Jetpack components, Android Studio, or
• iOS: Swift/Objective-C, Xcode, UIKit/SwiftUI
• Experience building native bridges, platform channels, or custom plugins.
• Solid understanding of mobile architecture patterns: MVVM, Clean Architecture, Provider/Bloc (Flutter), Redux/MobX (RN).
• Expertise in REST APIs, JSON, async programming, state management, and performance tuning.
• Experience with Git, CI/CD pipelines, and app store/play store release processes.
• Understanding of secure coding, authentication flows (OAuth2.0/JWT), and secure storage mechanisms.
  

Nice-to-Have

• Experience with TypeScript, modular architecture, deep linking, and offline capabilities.
• Exposure to mobile analytics, feature flags, A/B testing, and crash reporting.
• Familiarity with Cloud services (Firebase/AWS/Azure) for mobile features.
• Knowledge of SonarQube or static analysis tools.
• Experience creating POCs, reusable accelerators, or internal component libraries.
  

EY | Building a better working world

EY exists to build a better working world, helping to create long-term value for clients, people and society and build trust in the capital markets.Enabled by data and technology, diverse EY teams in over 150 countries provide trust through assurance and help clients grow, transform and operate.Working across assurance, consulting, law, strategy, tax and transactions, EY teams ask better questions to find new answers for the complex issues facing our world today.