Android Developer
- MSR Technology Group LLC
15 Hours Ago
NA
Yearly
Irving-TX
9-15 Years
Required Skills: JUnit, MockK, Mockito, Espresso, Compose testing, Kotlin
Job Description
Must Have Technical/Functional Skills
• 9+ years overall; 4+ years of recent mobile application development.
• Strong hands-on Kotlin with knowledge of null safety, collections, lambdas, extension functions, generics, sealed classes, delegation, and Android platform APIs.
• Ability to build adaptive interfaces, navigation, reusable composables/views, lists, forms, themes, animations, and accessibility support.
• Experience with MVVM/MVI, Clean Architecture, repository pattern, dependency injection, modularization, and separation of concerns.
• Practical experience with coroutines, suspend functions, Flow/StateFlow, structured concurrency, lifecycle awareness, and thread management.
• Retrofit/OkHttp or equivalent, REST/JSON, serialization, API error handling, Room, DataStore, caching, pagination, and offline considerations.
• Android Keystore, encrypted storage, secure token handling, certificate/pinning awareness, biometric authentication, and secure coding practices.
• JUnit, MockK/Mockito, Espresso, Compose UI testing, mocking, testable design, code coverage, and regression support.
• Android Studio, Gradle, Git, dependency management, profilers, CI/CD, signing, build variants, and Google Play workflows.
Roles & Responsibilities
• Design and develop secure, scalable, accessible, and high-performing native Android applications using Kotlin and Android development frameworks.
• Build reusable user interfaces and navigation flows using Jetpack Compose and Android Views, aligned with Material Design and product design systems.
• Apply appropriate architectural patterns such as MVVM, MVI, Clean Architecture, repository pattern, and unidirectional data flow.
• Integrate RESTful APIs and backend services; manage authentication, authorization, caching, retries, timeouts, pagination, and error states.
• Implement asynchronous processing and reactive state using Kotlin Coroutines, Flow, StateFlow, and lifecycle-aware components.
• Use secure storage and Android security capabilities to protect credentials, tokens, customer data, and sensitive application state.
• Develop unit, integration, and UI tests using JUnit, MockK/Mockito, Espresso, Compose testing, or equivalent tools.
• Profile and optimize application startup, responsiveness, battery use, networking, memory, rendering, and application size.
• Collaborate with UX/UI teams to convert Figma designs, prototypes, adaptive-layout requirements, and accessibility expectations into mobile experiences.
• Participate in solution design, estimation, sprint planning, backlog refinement, code reviews, demonstrations, and retrospectives.
• Support Gradle builds, build var iants, signing, CI/CD, internal testing, Google Play release readiness, and production monitoring.
• Troubleshoot production issues, remediate defects, reduce technical debt, and improve mobile engineering standards.
