Senior Android Developer

Location: San Leandro, CAJob Type: W2 ContractWork Arrangement: Hybrid / OnsiteDuration: 12+ MonthsJob OverviewWe are seeking an experienced Senior Android Developer to design, develop, and maintain high-quality, enterprise-scale Android applications. The ideal candidate will have strong hands-on experience with Kotlin, Android SDK, Jetpack/Jetpack Compose, Android application architecture, REST APIs, and backend integrations.The candidate will work closely with product managers, UX/UI designers, backend engineers, QA teams, and other stakeholders to deliver secure, scalable, high-performance mobile applications.Key ResponsibilitiesDesign, develop, test, and maintain native Android applications.Develop modern Android applications using Kotlin and Android SDK.Build responsive and user-friendly mobile interfaces using Jetpack Compose and/or Android UI frameworks.Implement scalable application architectures using MVVM, Clean Architecture, or similar patterns.Integrate RESTful APIs, microservices, third-party SDKs, and backend services.Work with JSON, authentication, networking, and client-server communication.Develop reusable, maintainable, and testable code.Optimize application performance, memory usage, responsiveness, and battery consumption.Troubleshoot, debug, and resolve application and production issues.Participate in architecture and technical design discussions.Perform code reviews and follow established coding standards and best practices.Collaborate with QA teams to develop and execute unit, integration, and UI testing.Work in an Agile/Scrum environment and participate in sprint planning, stand-ups, and retrospectives.Use Git and established branching/version-control practices.Support CI/CD processes and mobile application release activities.Required Skills5+ years of professional Android development experience.Strong hands-on experience with Kotlin.Strong knowledge of Android SDK and Android Studio.Experience with Jetpack Compose and modern Android development.Strong understanding of Android architecture patterns such as MVVM, MVP, or Clean Architecture.Experience with REST APIs, JSON, Retrofit/OkHttp, and backend integrations.Experience with Gradle and Android build systems.Strong experience with Git/source control.Experience with Android lifecycle, threading, coroutines, and asynchronous programming.Experience with dependency injection frameworks such as Dagger/Hilt.Experience with local data storage such as Room/SQLite.Strong debugging, troubleshooting, and performance optimization skills.Experience developing applications in an enterprise or large-scale environment.Excellent communication and collaboration skills.Preferred SkillsExperience with Java in addition to Kotlin.Experience with GraphQL.Experience with Firebase services.Experience with CI/CD tools and automated mobile application deployment.Experience with mobile application security and authentication.Experience integrating third-party SDKs.Experience with financial services, banking, or other regulated environments.Experience publishing and maintaining applications through the Google Play Store.Familiarity with cloud platforms such as AWS, Azure, or GCP.Skills: sdk,design,application,android sdk,architecture,android development,android,mobile,skills,kotlin