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Job Description Job Title : Senior Mobile App Developer - 4 to 6 Years Location : Bengaluru, India Company Overview Big Air Lab operates at the edge of applied AI where foundational research meets real-world deployment. We craft intelligent systems that think in teams, adapt with context, and deliver actionable insight across domains. Position Summary We are looking for a Senior Mobile App Developer with 2 to 3 years of professional mobile app development experience - at least 1 to 2 years of which must be dedicated to Flutter and Dart for cross-platform applications. The ideal candidate will be well-versed in state management using Riverpod (or similar frameworks), comfortable integrating WebRTC for real-time audio/video, and capable of handling end-to-end mobile app lifecycles (from UI design to App Store/Play Store submission). You should enjoy working on streaming/chat-style features, be adept at managing permissions and device integration (camera, microphone), and have a keen eye for responsive UI/UX design in Flutter. Key Responsibilities - Develop, maintain, and optimize cross-platform mobile applications using Flutter and Dart, ensuring clean architecture and modular code. - Implement and manage complex app state using Riverpod (e.g., StateProvider, FutureProvider, AsyncNotifier) or similar frameworks (Provider, Bloc, GetX). - Integrate WebRTC (via flutter_webrtc) for real-time audio/video functionality, including peer-to-peer streaming, signaling (Firebase/WebSocket), and handling STUN/TURN servers. - Build responsive, user-friendly interfaces in Flutter, designing video grids, call controls, and other UI components that adapt seamlessly across various screen sizes. - Handle real-time UI updates for dynamic states such as mute/unmute, participant joins/leaves, and other call-related events. - Configure and debug iOS builds in Xcode and Android builds in Android Studio, including provisioning profiles, signing certificates, and deployment pipelines. - Manage App Store (iOS) and Play Store (Android) submission processes : prepare provisioning profiles, handle versioning, and ensure compliance with store guidelines. - Integrate RESTful APIs and/or WebSocket connections for server communication, handling JSON payloads and ensuring efficient data parsing and error handling. - Manage device permissions (camera, microphone, network) using packages like permission_handler, ensuring a smooth user experience and handling permission-related edge cases. - Write unit tests and widget tests for UI components and business logic; debug cross-platform and WebRTC issues in both Xcode and Android Studio. - Implement basic security measures and privacy compliance (e.g., encryption for media streams, GDPR/CCPA requirements) to protect user data and adhere to regulatory standards. - Collaborate closely with designers, backend engineers, and QA teams to define requirements, review code, and deliver end-to-end features on schedule. - Stay updated with the latest Flutter/Dart releases, WebRTC enhancements, and mobile-app-related best practices; share knowledge and mentor junior developers as needed. - Assist in troubleshooting live production issues, perform root-cause analysis, and release timely hotfixes or updates. Qualifications - Overall Experience : 3 to 6 years of professional mobile app development. - Flutter & Dart : 2 to 3 years of dedicated experience building cross-platform apps. - State Management : Minimum 1 year using Riverpod (or Provider, Bloc) for complex app states and handling real-time UI updates (e.g., in chat/streaming apps). - WebRTC :1 to 2 Years of hands-on experience integrating flutter_webrtc or equivalent; familiarity with signaling mechanisms (Firebase, WebSocket). - Cross-Platform Development : At least 1 year each working with : - iOS : Configuring Xcode, provisioning, signing, and debugging. - Android : Configuring Android Studio, managing Gradle, signing, and debugging. - App Store/Play Store : Experience in app submission workflows, including provisioning profiles (iOS) and signing/build configurations (Android). - Networking & APIs : 1 to 2 years integrating REST APIs or WebSocket in mobile apps; strong understanding of JSON UI/UX Design : 1+ years building responsive, user-friendly interfaces in Flutter (e.g., grids, custom controls). - Permissions & Device Integration : 1+ years working with device permissions (camera, mic, network) and integrating native plugins. - Testing & Debugging : 1+ years writing unit/widget tests; debugging cross-platform issues, especially around WebRTC, in Xcode and Android Studio. - Security & Privacy : 6 to 12 months implementing encryption for media streams and ensuring compliance with data privacy standards (e.g., GDPR, CCPA). Must-Have Skills - Proficient in Flutter and Dart for cross-platform UI and business logic - Expert in state management with Riverpod and familiar with Provider, Bloc, or GetX - Experienced integrating flutter_webrtc for real-time audio/video streaming - Skilled in implementing signaling using Firebase or custom WebSocket - Proficient with Xcode for iOS build configuration, provisioning, and debugging - Proficient with Android Studio for Gradle management, signing, and debugging - Knowledgeable about App Store and Play Store submission requirements - Experienced in integrating REST (HTTP/JSON) and WebSocket APIs - Skilled in designing responsive video conferencing UIs (video grids, call controls) in Flutter - Competent in managing camera, microphone, and network permissions using permission_handler - Able to write unit and widget tests for UI and logic in Flutter - Experienced in debugging WebRTC and platform-specific issues in Xcode and Android Studio - Familiar with implementing basic encryption for media streams - Knowledgeable about GDPR and CCPA compliance requirements Good-to-Have Skills - Advanced WebRTC optimization (STUN/TURN, SFU/MCU) - Backend development (Node.js, Firebase, AWS) - Push notifications (FCM, CallKit for iOS, Android call screens) - Performance optimization (app size, CPU, platform channels) - Advanced UI/UX (virtual backgrounds, screen sharing, animations) - Analytics and monitoring (Sentry, Firebase Analytics, WebRTC metrics) CI/CD And DevOps - Pipelines with GitHub Actions/Bitrise - Streamlined App Store and Play Store deployments - Accessibility and localization (i18n, RTL, screen reader support) - Native development (Swift/Kotlin for platform-specific features) - AI/ML integration (noise cancellation, live captions, face detection) Preferred Qualifications - Bachelors degree in Computer Science, Engineering, or a related field. - Strong Git workflow experience (feature branches, code reviews, pull requests). - Demonstrated ability to mentor junior developers and conduct code reviews. - Proven track record of delivering at least one production-grade Flutter app to both App Store and Play Store. - Familiarity with Agile/Scrum methodologies and collaborative tools (Jira, Confluence). Perks & Benefits - Competitive salary with performance-based bonuses. - Opportunity to work on cutting-edge real-time audio/video applications. - Flexible working hours. - Access to the latest development tools and technologies. - Professional development budgets for conferences, courses, and certifications. - Wellness programs, and team-building events. (ref:hirist.tech)