AOSP & Mobile Application Expert (Kotlin + Flutter)

Job Title

Experience

Location

Key Responsibilities

• Design and develop mobile applications using

  Kotlin

  and

  Flutter

  with performance, security, and scalability in mind.
• Customize and extend

  AOSP (Android Open Source Project)

  components such as system services, HAL, and framework-level code.
• Integrate and manage

  VoIP features

  ,

  SIP stacks

  ,

  Telephony APIs

  , and

  Audio routing

  at both the system and application levels.
• Implement and enforce

  MDM (Mobile Device Management)

  policies and system-level restrictions for enterprise devices.
• Work on low-level Android components and services to tailor the Android OS for specific device requirements.
• Collaborate with cross-functional teams including UI/UX, QA, and backend teams to deliver complete solutions.
• Develop networking features using

  Sockets

  ,

  WebRTC

  ,

  REST APIs

  , and

  WebSockets

  for real-time communication.
• Integrate Firebase services (Analytics, Crashlytics, FCM, Performance Monitoring) for monitoring and diagnostics.
• Apply advanced concepts such as

  Dependency Injection

  ,

  Modular Architecture

  , and

  Clean Architecture

  for scalable app design.
• Ensure optimized memory usage, multithreading, and background execution management.

Required Skills & Experience

• 9+ years

  of Android development experience with strong command over

  Kotlin

  and/or

  Java

  .

• Hands-on experience with AOSP

  – modifying and building custom Android system images, frameworks, or services.
• Proficiency in

  Flutter

  and

  Dart

  , with experience building production-level cross-platform apps.
• Expertise in

  VoIP technologies

  , including

  SIP stack integration

  ,

  telephony features

  , and

  audio management

  .
• Strong understanding of

  Android system services

  , background execution limits, and permission models.
• Experience with

  Mobile Device Management (MDM)

  frameworks and policies implementation.
• Proficient in Android

  networking

  – Sockets, WebRTC, WebSockets, and RESTful APIs.
• Experience with

  Firebase services

  like FCM, Analytics, and Crashlytics.
• Solid grasp of

  multithreading

  ,

  services

  ,

  app lifecycle

  , and background task handling.
• Strong architecture skills using

  Clean Architecture

  ,

  MVVM/MVI

  , and

  Dependency Injection

  frameworks (Dagger/Hilt/Koin).