Senior React Native Cross-Platform Mobile Developer (iOS & Android)

Quest Global•Spring, TX

4d•$95,000 - $110,000•Onsite

About The Position

Quest Global delivers world-class end-to-end engineering solutions by leveraging our deep industry knowledge and digital expertise. By bringing together technologies and industries, alongside the contributions of diverse individuals and their areas of expertise, we are able to solve problems better, faster. This multi-dimensional approach enables us to solve the most critical and large-scale challenges across the aerospace & defense, automotive, energy, hi-tech, healthcare, medical devices, rail and semiconductor industries. We are looking for humble geniuses, who believe that engineering has the potential to make the impossible possible; innovators, who are not only inspired by technology and innovation, but also perpetually driven to design, develop, and test as a trusted partner for Fortune 500 customers. As a team of remarkably diverse engineers, we recognize that what we are really engineering is a brighter future for us all. If you want to contribute to meaningful work and be part of an organization that truly believes when you win, we all win, and when you fail, we all learn, then we’re eager to hear from you. The achievers and courageous challenge-crushers we seek, have the following characteristics and skills: We are seeking a Senior React Native Mobile Developer with extensive experience building secure, scalable, production-grade cross-platform applications for iOS and Android. The ideal candidate has strong React Native expertise combined with deep knowledge of native mobile capabilities, authentication, offline synchronization, secure storage, push notifications, GPS/location services, and enterprise mobile application architecture.

Requirements

7+ years of software development experience.
5+ years developing production React Native applications.
Strong JavaScript/TypeScript and React Native architecture.
Experience with React Navigation, Redux/Zustand/Context API, native modules, and App Store/Google Play deployments.
Strong understanding of native platform capabilities, including: Android and iOS application lifecycle, Background processing, Deep/Universal Links, Permissions, Native integrations.
Hands-on experience with: OAuth 2.0, OpenID Connect (OIDC), PKCE, JWT, Azure AD/Entra ID, MSAL, Auth0, Okta, Firebase Authentication, MFA, biometrics (Face ID/Touch ID), secure session management, Secure storage using iOS Keychain, Android Keystore, and encrypted storage, Mobile security best practices, certificate pinning, encryption, and secure API communication.
Experience designing production-grade synchronization including: Offline-first architecture, Background synchronization, Delta sync, Conflict detection and resolution, Retry mechanisms, Queue-based synchronization, SQLite, Realm, WatermelonDB, or similar local databases.
Experience implementing: Firebase Cloud Messaging (FCM) and APNs, Rich, silent, and actionable push notifications, GPS tracking, background location updates, geofencing, and map integrations.
Experience with: REST APIs, GraphQL, WebSockets/SignalR, Request caching, offline queues, retry strategies, Performance optimization, memory management, battery optimization, and crash analysis.
Experience with: Jest, React Native Testing Library, Detox, CI/CD using GitHub Actions, Azure DevOps, Bitrise, Fastlane, or App Center, TestFlight and Google Play release management.
Experience integrating with Firebase services, along with monitoring tools such as Crashlytics, Sentry, Application Insights, or OpenTelemetry.