Senior Android Developer

Web Spiders; Kolkata District; Hybrid; INR 1,200,000 - 1,500,000; Full time

Job summary

Web Spiders Group is seeking a Senior Android Developer to design, build, and maintain Android apps with Kotlin, Java, and modern architecture. You’ll work directly with the client’s team on a white-label staff augmentation engagement, in Kolkata onsite or remote.

The role demands 5+ years of hands-on Android experience, mastery of MVVM and Android Jetpack, and solid testing practices. You’ll collaborate on architecture decisions, contribute to code quality, and participate in technical rounds

Qualifications

• 5+ years of hands-on Android development with Kotlin and Java.
• Strong MVVM, Clean Architecture, and SOLID principles.
• Experience with Android Jetpack components (ViewModel, Lifecycle, Navigation, Room).
• Proficiency in Jetpack Compose and XML layouts, with state management.
• Experience with Kotlin Coroutines and Flow for asynchronous operations.
• Familiarity with dependency injection using Hilt or Dagger.
• Experience integrating REST APIs using Retrofit/OkHttp, including error handling and authentication.
• Understanding of local persistence, caching, and offline data handling.
• Strong knowledge of Android lifecycle, configuration changes, and process recreation.
• Familiarity with unit and UI testing using JUnit, MockK/Mockito, and Espresso or Compose UI tests.
• Proficiency with Android Studio, Gradle, Git, debugging, and profiling tools.
• Strong problem-solving, communication, and independent delivery skills.

Responsibilities

• Design, develop, test, and maintain Android applications and reusable modules.
• Apply appropriate architecture patterns to create scalable, maintainable applications.
• Build responsive interfaces and manage application state.
• Integrate APIs, local storage, and third-party libraries.
• Troubleshoot crashes, memory leaks, and performance issues.
• Write unit tests, participate in code reviews, and maintain code quality.
• Collaborate directly with the client's team on requirements, technical decisions, and delivery.

Skills

Kotlin

Java

MVVM

Clean Architecture

Android Jetpack

Jetpack Compose

REST APIs (Retrofit/OkHttp)

Unit/UI Testing

Git

Android Studio

Tools

Android Studio

Gradle

Git

Job description

We are seeking an Senior Android Developer with strong knowledge of Android architecture and modern development practices for a white-label staff augmentation engagement. The selected candidate will work directly with the client's team to build and maintain Android applications.
Location: Kolkata (Onsite) / Remote
Employment type: Full-time or contract
No of Positions: 2
Joining: Immediate

Key Responsibilities

• Design, develop, test, and maintain Android applications and reusable modules.
• Apply appropriate architecture patterns to create scalable, maintainable applications.
• Build responsive interfaces and manage application state.
• Integrate APIs, local storage, and third-party libraries.
• Troubleshoot crashes, memory leaks, and performance issues.
• Write unit tests, participate in code reviews, and maintain code quality.
• Collaborate directly with the client's team on requirements, technical decisions, and delivery.

Required Skills And Technical Expertise

• 5+ years of hands-on Android development experience with Kotlin and working knowledge of Java.
• Strong understanding of MVVM, Clean Architecture, separation of concerns, repository patterns, and SOLID principles.
• Experience with Android Jetpack, including ViewModel, Lifecycle, Navigation, and Room.
• Proficiency in Jetpack Compose and/or XML-based layouts, including state management and reusable UI components.
• Experience with Kotlin Coroutines and Flow for asynchronous operations and reactive data handling.
• Familiarity with dependency injection using Hilt or Dagger.
• Experience integrating REST APIs using Retrofit/OkHttp, including error handling and authentication.
• Understanding of local persistence, caching, and offline data handling.
• Strong knowledge of Android lifecycle, configuration changes, and process recreation.
• Familiarity with unit and UI testing using tools such as JUnit, MockK/Mockito, and Espresso or Compose UI tests.
• Proficiency with Android Studio, Gradle, Git, debugging, and profiling tools.
• Strong problem-solving, communication, and independent delivery skills.

Interview Process

Candidates will attend a 1-2 hours screen-sharing coding round to build a small Android module followed by 2 technical rounds with the interview panel. Candidates should be prepared to explain their architecture, implementation choices, and approach to code organization.

Preparation And Guidelines

• Have Android Studio installed with a blank Android project ready.
• Keep a working emulator or Android test phone available.
• Online searches and the IDE's default basic code completion are permitted.
• AI tools and assistants are strictly prohibited during the interview. All AI plugins must be completely disabled beforehand. Any use of AI will result in immediate disqualification.