About the jobSenior Android Developer (Kotlin/Jetpack Compose) - Hybrid Lisbon/Braga/Coimbra (1 day/week office)ABOUT THE OPPORTUNITYJoin an innovative tech team working on cutting-edge Android development initiatives. This role offers the opportunity to take complete ownership of complex features while working with modern Android technologies and best practices. You'll be part of a collaborative environment where code quality, performance optimization, and architectural excellence are paramount. The position provides the flexibility of hybrid work with minimal office presence, allowing you to balance productivity with work-life harmony while contributing to impactful projects that reach users at scale.PROJECT & CONTEXTYou'll be working on sophisticated Android applications that demand high performance, stability, and exceptional user experience. The team follows Clean Architecture principles with MVVM/MVI patterns in a modularized structure, enabling independent team development and scalability. Your contributions will span the entire development lifecycle, from technical design and API contract negotiation through implementation, testing, and deployment. The technical environment emphasizes automation through robust CI/CD pipelines using Azure and Bitrise, ensuring code quality through comprehensive testing strategies and zero-manual-intervention deployments.What we\'re looking for (Required)Experience & Technical Depth:Minimum 5 years of relevant Android development experienceDeep expertise in Kotlin, including advanced features: Coroutines, Flow, and Inline classes2+ years of production experience with Jetpack ComposeComprehensive knowledge of Android SDK internals, Lifecycle management, and Work ManagerDependency Injection: Hilt or Dagger2Networking: Retrofit, Ok Http, and Graph QL with ApolloPersistence: Room or SQLDelightExpert-level testing with JUnit, Mockito/Mock K, Espresso, or Compose Test frameworksStrong command of Clean Architecture and MVVM/MVI patternsExperience maintaining modularized architectures for team scalabilityProven ability to write clean, idiomatic Kotlin codePerformance optimization skills: memory leak detection, network layer efficiency, app startup optimizationDev Ops & Quality:Experience with CI/CD pipelines (Azure/Bitrise preferred)Google Play Console management, App Bundles, Pro Guard/R8 knowledgeStrong testing mindset with automated UI and unit testing expertiseLanguage & Location:Must be currently residing in Portugal (Lisbon, Braga, or Coimbra regions)Availability for 1 day per week on-site collaborationNICE TO HAVE (Preferred)Experience leading technical problem-solving for high-priority production issuesDeep understanding of Android OS fragmentation challenges and solutionsTrack record of mentoring junior developers and leading by example in code qualityContributions to open-source Android projects or technical community engagementExperience with additional testing frameworks and automation toolsBackground in performance profiling and optimization tools