Mobile Application Developer

TheCodingShef; Chennai; Presencial; INR 1.800.000 - 2.400.000; Tempo integral

Resumo da vaga

Worktual Innovations in Chennai is seeking a Senior Mobile Application Developer to lead the design, development and release of our Android apps. You will own real-time voice/video features (SIP/VoIP, WebRTC) and collaborate with cross-functional teams to ship high-quality mobile experiences.

You will work in Kotlin with Jetpack Compose, MVVM/MVI, and Clean Architecture, building cross-platform components with React Native where needed.

Qualificações

• 4–8 years of Android/mobile development experience.
• Strong Kotlin and Jetpack Compose expertise.
• Experience with MVVM or MVI and Clean Architecture.
• Familiarity with real-time comms (SIP/VoIP, WebRTC).
• REST/GraphQL, testing and CI/CD experience.
• Experience with cross-platform work (React Native) is a plus.

Responsabilidades

• Design and build Android apps in Kotlin and Jetpack Compose using MVVM/MVI and Clean Architecture.
• Develop and maintain real-time calling features: SIP signaling, WebRTC audio/video, push events.
• Deliver call handling, chat, presence and history with robust performance.
• Collaborate with backend, QA and product teams on API design, planning and releases.
• Own Play Store releases and production monitoring, ensuring quality.

Conhecimentos

Kotlin

Jetpack Compose

Coroutines & Flow

MVVM/MVI

Hilt / Dagger

WebRTC

Ferramentas

Retrofit

OkHttp

Android Studio

Android Profiler

Descrição da vaga

# Mobile Application DeveloperWorktual InnovationsChennaiOn-siteMid-levelPosted yesterdayApply on employer siteYou apply on the employer's own page. Never pay to apply for a job.## About the roleKotlinJetpack ComposeCoroutines & FlowHilt / DaggerRetrofit / OkHttpMVVM / Clean ArchitectureTestingGradleCI/CDPerformanceREST / GraphQL\\*Immediate Joiners only\\*\\*Monday to Saturday working\\*\\*Male Candidates are preffered\\*\\*Key skills:\\*\\*SIP/VoIP, WebRTC\\* , \\*Kotlin,\\* \\*Jetpack Compose,\\* \\*MVVM/MVI,\\* \\*WebRTC audio/video,\\* \\*incoming-call push,\\* \\*React Native for Android and iOS,\\* \\*WebSocket\\*\\*About the role\\*We are looking for a Senior Software Engineer (Mobile) 4 to 8 years to own the design, development and release of our communication apps on Android, with cross-platform work in React Native. You will work across real-time voice and video calling (SIP/VoIP, WebRTC), contact-centre features, and AI.\\*Key responsibilities\\*\\* Design and build Android apps in \\*Kotlin and Jetpack Compose using MVVM/MVI, Clean Architecture\\* and multi-module Gradle.\\* Build and maintain real-time calling features: \\*SIP signalling, WebRTC audio/video, incoming-call push, foreground call services\\* and Telecom integration.\\* Deliver \\*call handling, chat, presence\\* and call history.\\* Integrate on-device machine learning models (ONNX) through the native layer for offline inference.\\* Develop and maintain cross-platform features in \\*React Native for Android and iOS\\*.\\* Own app \\*performance and stability: startup time, ANRs, memory leaks, crash rate, using Android Profiler, Perfetto\\* , Baseline Profiles and LeakCanary.\\* Make \\*architecture decisions, review code, and set coding standards\\* for the mobile team.\\* Work with backend, QA and product teams on \\*API design, planning and releases\\*.\\* Manage Play Store releases, \\*policy compliance\\* , and production monitoring.\\*Required skills and experience\\*\\* Strong Kotlin: coroutines, Flow, and a clear understanding of how they work internally.\\* Jetpack Compose, ViewModel, Navigation, Room, DataStore, WorkManager, Hilt.\\* Architecture: MVVM, MVI, Clean Architecture, unidirectional data flow, multi-module projects.\\* Real-time communication: SIP/VoIP, WebRTC, WebSocket, push-based incoming calls.\\* Networking and security: Retrofit, OkHttp, TLS/HTTPS, certificate pinning, Android Keystore.\\* Android SDK internals: lifecycles, services, permissions, background execution limits.\\* Performance tooling: Android Profiler, Perfetto, Macrobenchmark, Baseline Profiles, LeakCanary, ANR analysis.\\* Testing: unit tests with coroutines and Flow, Compose UI tests.\\* Experience shipping and maintaining apps on Google Play.\\*Nice to have\\*\\* React Native development for Android and iOS, including native modules.\\* Contact-centre or UCaaS product experience.\\* CI/CD for mobile (GitHub Actions or similar), screenshot testing.