Vivek Vijaya Kumar
Android Developer specializing in high-performance, structurally sound mobile applications. I build resilient systems using Kotlin and Jetpack Compose, focusing on technical precision and minimal overhead.
Core Competencies
- Architecture & Modernization: Modernizing legacy XML-based codebases toward Jetpack Compose, Kotlin Coroutines, and Clean Architecture (MVI/MVVM).
- UI & Design Systems: Creating modular, accessible, and responsive UI components using Jetpack Compose and Material Design 3.
- Reactive Workflows & Data: Building offline-first, event-driven data pipelines utilizing Room, DataStore, StateFlow, and Coroutines.
- Performance & Reliability: Optimizing cold start times, frame rates, memory footprint, and network latency using Android Profiler and Firebase Crashlytics.
- Hardware & Low-Level Integration: Implementing platform IPC (AIDL, JNI) and embedded communications including Bluetooth LE, GPS, and Android Automotive integrations.
Technical Capabilities & Professional Highlights
- Multi-Display & Form Factor Support: Extensive experience building applications for varied screen densities, dynamic window sizes, single-screen, and multi-screen environments.
- Library & SDK Development: Proven track record in designing reusable, lightweight Android SDKs and feature modules for multi-project consumption.
- System Design & Object-Oriented Analysis: Proficient in Object-Oriented Analysis and Design (OOA/OOD) utilizing UML modeling for complex app architecture planning.
Technical Proficiency
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Core Languages & Platform
- Kotlin
- Java
- Android SDK
- Android OS
- Android Automotive
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Modern UI & Design Systems
- Jetpack Compose
- Material Design 3
- Android Views
- Custom Views
- Responsive Layouts
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Architecture & Dependency Injection
- MVI
- MVVM
- Clean Architecture
- SOLID Principles
- Modular Architecture
- Hilt
- Dagger
- Koin
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Concurrency & Asynchronous Systems
- Kotlin Coroutines
- Flow
- StateFlow
- SharedFlow
- RxJava
- Reactive Programming
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Data, Persistence & Storage
- Room
- SQLite
- DataStore
- Local Caching
- Offline-First Patterns
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Networking & Integration
- REST APIs
- Retrofit
- OkHttp
- Kotlin Serialization
- Gson
- Network Error Handling
- Socket Programming
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Testing, Profiling & Quality Assurance
- JUnit
- MockK
- Mockito
- Robolectric
- Compose UI Testing
- SonarQube
- Firebase Crashlytics
- Android Profiler
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Hardware, Location & Platform IPC
- Bluetooth / BLE
- GPS / Location Services
- Google Maps SDK
- AIDL
- JNI
- WorkManager
- Content Providers
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Build Systems & Tooling
- Gradle
- Android Studio
- Git
- CI/CD Pipelines
- Build Optimization