Senior Mobile App Developer - Flutter/Dart

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)