Senior React Native Cross-Platform Mobile Developer; iOS & Android

Senior React Native Mobile Developer

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.

What You Will Do:

Design, develop, and maintain enterprise-grade React Native applications. Build scalable, maintainable, and reusable mobile architectures. Integrate secure REST/GraphQL APIs and real-time services. Collaborate with Product, UX, Backend, Security, and QA teams. Optimize application performance, reliability, and battery usage. Troubleshoot production issues and mentor junior developers. Participate in architecture, code reviews, and Agile development processes.

What You Will Bring:

Required Skills and Experience

• 7+ years of software development experience.
• 5+ years developing production React Native applications.
• Strong JavaScript/Type Script and React Native architecture.
• Experience with React Navigation, Redux/Zustand/Context API, native modules, and App Store/Google Play deployments.

iOS & Android Platform Expertise

Strong understanding of native platform capabilities, including:

• Android and iOS application lifecycle
• Background processing
• Deep/Universal Links
• Permissions
• Native integrations

Authentication & Security

Hands-on experience with:

• OAuth 2.0, OpenID Connect (OIDC), PKCE, JWT
• Azure AD/Entra , MSAL, Auth0, Okta, Firebase Authentication
• MFA, biometrics (Face /Touch ), secure session management
• Secure storage using iOS Keychain, Android Keystore, and encrypted storage
• Mobile security best practices, certificate pinning, encryption, and secure API communication

Offline Data Synchronization

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

Push Notifications & Location Services

Experience implementing:

• Firebase Cloud Messaging (FCM) and APNs
• Rich, silent, and actionable push notifications
• GPS tracking, background location updates, geofencing, and map integrations

Networking & Performance

Experience with:

• REST APIs, GraphQL, Web Sockets/SignalR
• Request caching, offline queues, retry strategies
• Performance optimization, memory management, battery optimization, and crash analysis

Testing & Dev Ops

Experience with:

• Jest, React Native Testing Library, Detox
• CI/CD using Git Hub Actions, Azure Dev Ops, Bitrise, Fastlane, or App Center
• Test Flight and Google Play release management

Cloud & Monitoring

Experience integrating with Firebase services, along with monitoring tools such as Crashlytics, Sentry, Application Insights, or Open Telemetry.

Pay Range: (95K USD to 110K USD)

Compensation decisions are made based on factors including experience, skills, education, and other job-related factors, in accordance with our internal pay structure. We also offer a comprehensive benefits package, including health insurance, paid time off, and retirement plan.

Work Requirements:

This role is considered an on-site position located in City/Town Name, State. You must be able to commute to and from the location with your own transportation arrangements to meet the required working hours.

Benefits

Full-time (Regular)

• 401(k)

• 401(k) matching

• Dental insurance

• Health insurance

• Life insurance

• Paid time off

• Referral program

• Vision insurance

• Short/Long Term Disability