Mobile App Developer (React Native/Flutter) – Kolkata

About the role

We are seeking a Mobile App Developer to design, develop, and maintain high‑quality Android and iOS applications. The role focuses on building cross‑platform solutions using React Native or Flutter and collaborating closely with UI/UX designers, backend developers, QA engineers, and product teams.

Key responsibilities

• Develop and maintain Android and iOS mobile applications using React Native or Flutter.
• Build reusable, scalable, and maintainable mobile UI components.
• Convert UI/UX designs and business requirements into functional mobile applications.
• Develop and integrate RESTful APIs with Node.js and Express.js.
• Design, query, and optimize MongoDB databases.
• Implement secure authentication and authorization mechanisms.
• Integrate third‑party APIs, payment gateways, maps, notifications, and other external services.
• Implement features such as push notifications, deep linking, local storage, file/image upload, and offline data handling.
• Manage application state using Redux/Redux Toolkit, Bloc, Provider, or equivalent.
• Optimize performance, API response time, memory usage, and overall user experience.
• Identify, debug, and resolve application, API, and production issues.
• Perform unit testing, integration testing, and application debugging.

Required profile

Required skills

• React Native
• Flutter
• Node.js
• Express.js
• MongoDB
• RESTful API development
• Authentication and authorization
• Third‑party API integration (payment gateways, maps, notifications)
• Push notifications, deep linking, offline data handling
• State management (Redux, Redux Toolkit, Bloc, Provider)
• Performance optimization
• Unit testing and integration testing
• Debugging and issue resolution