React Native (Mobile Apps) Lead Engineer || Framingham, MA (5 Days/Week)

React Native (Mobile Apps) Lead Engineer

Framingham MA (5 Days/Week)

6+ Months Contract 

Job Description:

10+ years of software development experience with 6+ years in mobile application development.
Strong hands-on experience with React Native, TypeScript, and Expo ecosystem (EAS, OTA updates, build pipelines).
Experience building scalable, high-performance iOS and Android mobile applications.
Expertise in mobile architecture patterns such as Clean Architecture, MVVM, and modular architecture.
Strong experience with state management frameworks (Redux, Zustand, Context API).
Experience implementing navigation, routing, and deep linking using React Navigation or Expo Router.
Knowledge of secure authentication flows including OAuth, OIDC, PKCE, biometrics, and secure token handling.
Hands-on experience integrating native modules using Swift (iOS) and Kotlin (Android).
Strong understanding of mobile performance optimization (startup time, bundle size, memory usage, rendering performance, offline caching).
Experience with push notifications, analytics SDKs, fraud detection, and mobile security frameworks.
Expertise with API integrations (REST, GraphQL) and handling offline-first mobile architecture.
Experience setting up mobile CI/CD pipelines using Fastlane, EAS Build, App Store Connect, and Google Play Console.
Knowledge of mobile DevOps practices, release management, and store compliance.
Experience implementing automated testing frameworks such as Jest, React Native Testing Library, and Detox.
Experience collaborating in Agile environments and working with cross-functional teams (Product, Design, Backend, DevOps).
Experience working with cloud platforms (AWS, Azure, or GCP).
Proven leadership experience mentoring engineers and driving technical architecture decisions.