Mobile Application Developer - Service Technician

About Carrier 

Carrier is a global leader in intelligent climate and energy solutions, delivering advanced heating, cooling, and refrigeration systems, as well as building automation technologies. The Digital Products and Software team develops connected experiences for homeowners, service technicians, and the broader Residential ecosystem. 

Must be permanent resident. Sponsorship not available.

US Remote only

Role Summary 

Carrier is seeking a Software Engineer I, Mobile to support development of Residential mobile applications, including the Smart Home App (SHA) and Service Technician App (STA). These applications are built using React Native, TypeScript, shared monorepo libraries, and cloud-based APIs supporting connected-device workflows. 

This position is designed for an early-career engineer who will contribute to feature delivery, defect resolution, testing, and release readiness while building practical experience in mobile application architecture, state management, and API-driven development. 

Key Responsibilities 

• Develop and maintain mobile application features using JavaScript and TypeScript. 

• Build user interface components and application logic using React Native. 

• Implement API integrations to support mobile application functionality. 

• Diagnose and resolve application defects, including reproducing issues and validating fixes. 

• Participate in code reviews and contribute to improving code quality and consistency. 

• Execute unit testing and assist with integration and regression testing activities. 

• Support CI/CD pipelines and assist with mobile application release processes. 

• Collaborate with product managers, designers, QA engineers, and backend developers. 

• Apply secure coding practices, including authentication and secure data storage. 

• Participate in issue triage and support activities during U.S. Eastern Time business hours. 

Required Qualifications  

• Bachelor’s degree in Computer Science, Engineering, or a Hard Science (Physical, Life, or Applied Science). 

• 7+ years of software engineering experience, including 4+ years building and shipping production of Android and iOS mobile applications. 

• 3+ years of hands-on experience with React Native and TypeScript. 

• 2+ years of experience integrating Android and iOS mobile applications with GraphQL or REST APIs. 

Preferred Qualifications 

• Demonstrated experience writing JavaScript or TypeScript code in at least one project or coursework assignment. 

• Hands-on experience building at least one mobile or web application using React Native, React, or similar framework. 

• Experience integrating at least one REST API or web service in a project or coursework assignment. 

• Demonstrated understanding of state management concepts such as props, state, or centralized state stores through project implementation. 

• Ability to work a minimum of 4 hours daily overlap with U.S. Eastern Time (8:00 AM – 12:00 PM ET). 

• Ability to participate in virtual collaboration with distributed teams, including teams in multiple time zones. 

• Experience contributing to a mobile application deployed to iOS App Store or Google Play Store. 

• Experience working with REST APIs or GraphQL-based services in a production or project environment. 

• Exposure to state management libraries such as Redux Toolkit, RTK Query, or similar tools. 

• Experience writing unit tests using frameworks such as Jest or similar testing tools. 

• Experience working with Git version control, including branching and pull request workflows. 

• Familiarity with mobile development environments such as Xcode and Android Studio. 

• Exposure to connected-device or IoT applications, including workflows such as Bluetooth, biometrics, camera, or QR code scanning. 

• Experience using local storage solutions such as AsyncStorage, SecureStore, or similar tools. 

• Exposure to AI-assisted development tools such as Cursor, Claude, Kiro, or similar platforms.