Senior Mobile Developer

Position: Senior Mobile Engineer
Experience: 5+ Years
Location: Navi Mumbai, Airoli

About the Role

We are seeking a highly skilled Mobile Engineer with strong expertise Flutter, and/or React Native development for creating hybrid application hosted in iOS, Android. The ideal candidate should have hands-on experience building scalable mobile applications with real-time communication features such as audio calling, video calling, chat systems, and push notifications. The candidate will play a key role in designing, developing, and maintaining high-performance mobile applications used by a large user base.

Key Responsibilities:

Mobile Application Development

• Design, develop, test, and maintain high-quality mobile applications for iOS and Android platforms.
• Build cross-platform applications using Flutter and/or React Native.
• Develop reusable, scalable, and maintainable mobile application components.
• Optimize application performance, responsiveness, and battery consumption.

Real-Time Communication Features

• Develop and enhance video calling and audio calling functionalities.
• Implement WebRTC-based communication solutions.
• Integrate third-party communication platforms such as Agora, Twilio, Vonage, or similar technologies.
• Ensure low-latency, reliable real-time communication experiences.

Chat & Messaging Solutions

• Design and develop real-time chat and messaging applications.
• Implement one-to-one and group chat features.
• Develop message delivery status, read receipts, typing indicators, and media sharing capabilities.
• Integrate WebSocket, Socket.IO, Firebase Realtime Database, or similar technologies for real-time communication.

Push Notification Implementation

• Develop and maintain push notification services using Firebase Cloud Messaging (FCM) and Apple Push Notification Service (APNS).
• Configure notification scheduling, deep linking, and user segmentation.
• Monitor and optimize notification delivery and engagement.

API & Backend Integration

• Integrate RESTful APIs, GraphQL APIs, and third-party services.
• Collaborate with backend engineers to define API contracts.
• Handle authentication, authorization, and secure data transmission.

Quality & Performance

• Troubleshoot and resolve application defects and performance bottlenecks.
• Implement mobile security best practices.
• Conduct code reviews and enforce coding standards.
• Write unit tests and participate in integration testing and UAT support.

Collaboration & Delivery

• Work closely with Product Managers, UI/UX Designers, QA Engineers, and Backend Developers.
• Participate in Agile/Scrum ceremonies and sprint planning.
• Provide technical guidance and mentor junior developers when required.
• Contribute to technical architecture and mobile engineering best practices.

Required Skills

Strong proficiency in:

• iOS Development (Swift, Objective-C)
• Android Development (Kotlin, Java)
• Flutter and/or React Native

Real-Time Communication

• Experience with:

• Video Calling Applications

• Audio Calling Applications

• WebRTC

• VoIP Technologies

Chat Applications

• Experience building:

• Real-Time Chat Applications

• Messaging Platforms

• Group Chat Features

• Media Sharing

Notifications

• Strong experience with:

• Firebase Cloud Messaging (FCM)

• Push Notifications

• APNS

• In-App Notifications

Integration & Architecture

• REST API Integration
• GraphQL
• WebSocket / Socket.IO
• Firebase Services
• State Management Solutions

Tools & Platforms

• Git/GitHub/GitLab
• CI/CD Pipelines
• App Store Deployment
• Google Play Store Deployment