Mobile Developer (iOS + Android)

Role Overview You will be part of a small engineering team responsible for rebuilding the existing mobile app using modern native frameworks (SwiftUI or Kotlin/Jetpack Compose). The project includes upgrading the UI layer, replacing deprecated libraries, improving performance, and integrating with REST APIs, push notification services, and Azure-hosted backend systems. Responsibilities iOS (SwiftUI) Rebuild existing Objective-C / UIKit components using SwiftUI (iOS 17+) • Migrate networking, notifications, and background tasks to modern APIs • Integrate with external services including Firebase, Azure API endpoints, and a custom backend queue • Implement multilingual UI rendering and dynamic layout adjustments • Handle offline caching, thread-safe data flows (async/await), and performance optimization • Follow WCAG accessibility requirements (Dynamic Type, VoiceOver, color contrast) Android (Kotlin / Jetpack Compose) • Rewrite the existing Java 8 codebase using Kotlin + Jetpack Compose • Replace EOL or deprecated third-party libraries with official AndroidX/Google libraries • Implement push notifications using Firebase Cloud Messaging • Integrate with REST APIs and Azure backend endpoints • Build multilingual UI support with locale-specific rendering • Ensure background delivery, Doze mode compatibility, and battery-optimized behaviors Shared Responsibilities Participate in code reviews and technical planning • Work with REST/JSON APIs and authentication flows • Implement reusable components and maintain consistent design patterns • Write automated tests and assist with QA/debug cycles • Document architecture, modules, and integration workflows • Collaborate with PM and engineering lead in weekly sprints Required Skills For iOS Developers 4+ years of iOS development • Strong experience with Swift and SwiftUI • Background in Objective-C migration is a plus • Experience with Firebase, APNs, background tasks, and offline caching For Android Developers • 4+ years of Android development • Strong experience with Kotlin and Jetpack Compose • Ability to migrate legacy Java apps into modern Kotlin architectures • Firebase/FCM experience required For Both Strong knowledge of REST APIs, error handling, and retry logic • Ability to optimize for performance, memory usage, and battery constraints • Experience integrating SAST/DAST feedback into code fixes • Familiarity with GitHub Actions or CI/CD pipelines • Understanding of accessibility best practices • Strong communication and ability to work independently on tight timelines Nice to Have Experience working with multilingual or localization-heavy apps • Azure API integration experience • Experience with emergency/push notification–heavy apps • Familiarity with Everbridge API (not required) • Knowledge of Redux/Composable architecture patterns (Android) or MVVM (iOS) Contract Details • Full-time contract: 5–6 months • Remote work • Competitive hourly rate • Start date: January–February 2026 Pay: Up to $50.00 per hour Expected hours: No more than 40 per week Work Location: Remote Apply tot his job