Senior Engineer, Mobile Applications

Carrier is a global provider of intelligent climate, energy, and connected residential solutions. The company is seeking a Senior Engineer, Mobile Applications to design, build, and maintain iOS and Android capabilities while integrating mobile applications with APIs, authentication systems, and cloud services. The role also involves technical leadership, mentoring, cross-functional collaboration, and improving mobile quality and reliability.

Responsibilities:

• Design, build, and maintain mobile features across Residential mobile applications on iOS and Android
• Lead technical delivery for complex React Native and TypeScript-based mobile work in a shared-codebase environment
• Build and support integrations with REST APIs, GraphQL services, authentication systems, and backend-for-frontend or gateway layers
• Contribute to backend-facing work when needed, including API contract design, auth/session behavior, payload handling, and service-integration troubleshooting
• Improve app stability, performance, responsiveness, and release quality across iOS and Android
• Help define mobile architecture, state management, secure local storage, sync behavior, and maintainable component patterns
• Troubleshoot production issues that cross mobile, API, authentication, and cloud-service boundaries
• Contribute to CI/CD, release-readiness, app-store delivery, and secure engineering practices
• Partner with cloud engineering, product, UX, QA, and support teams to deliver high-quality end-to-end solutions
• Mentor junior engineers and contribute to code reviews, technical design discussions, and engineering best practices

Requirements:

• Bachelor's degree in Computer Science, Engineering, or a Hard Science (Physical, Life, or Applied Science)
• 7+ years of software engineering experience
• 4+ years building and shipping production mobile applications across both iOS and Android
• 3+ years of hands-on experience with React Native and TypeScript
• 2+ years integrating mobile applications with REST APIs, GraphQL APIs, or comparable service-based backends
• 2+ years working with authentication, authorization, token lifecycle management, and secure session handling in production applications
• 2+ years building, supporting, or troubleshooting backend or cloud services in AWS or a comparable cloud environment
• 3+ years debugging issues across app, API, and cloud-service boundaries
• 2+ years working with modern CI/CD, code review, testing, and release workflows for mobile delivery
• Ability to collaborate effectively during U.S. Eastern Time business hours
• Experience with connected-home, IoT, smart device, or subscription-based consumer applications
• Experience with backend technologies such as Node.js and TypeScript for API or service-layer development
• Experience with API gateways, backend-for-frontend patterns, or identity-provider integrations
• Experience with secure local storage patterns such as Keychain, MMKV, SecureStore, AsyncStorage, or comparable approaches
• Experience with state-management and data-fetching patterns such as Redux Toolkit, RTK Query, or similar approaches
• Experience with mobile observability, crash analysis, and production diagnostics using tools such as Crashlytics, LogRocket, or similar platforms
• Experience with native integrations such as BLE, biometrics, camera or QR flows, OEM SDKs, or React Native native modules
• Familiarity with AWS-backed platforms, cloud debugging, and backend operational concepts
• Experience using AI-assisted development tools such as Cursor, Claude, Kiro, or similar tools to accelerate coding, debugging, testing, and delivery