Android Developer

🏢 Summary: Remote B2B opportunity for an Android Developer to build and maintain scalable, high-quality mobile applications using modern Android technologies. The role focuses on delivering new features, integrating backend services, and ensuring performance and reliability across devices. You will contribute to architecture decisions and CI/CD processes within a cross-functional team. 🗂️ Requirements: 3–5+ years of Android development experience, Proficiency in Kotlin and Java, Experience with Android Jetpack components (ViewModel, LiveData, Room, Navigation, WorkManager), Knowledge of MVVM or Clean Architecture, Experience with Coroutines and Flow, Experience integrating RESTful APIs and working with JSON, Proficiency with Git version control, Experience with Hilt or Dagger, Experience with JUnit and Espresso, Experience with CI/CD pipelines, Understanding of mobile UI/UX principles 📃 Skills: Kotlin, Java, Android, AndroidStudio, Jetpack, ViewModel, LiveData, Room, Navigation, WorkManager, MVVM, CleanArchitecture, Coroutines, Flow, REST, JSON, Git, Hilt, Dagger, JUnit, Espresso, CICD, Jenkins, GitHubActions, Bitrise, AzureDevOps, Firebase, Crashlytics, AppCenter, KMM, Compose 🏢 Description: Android Developer We are looking for a talented Android Developer to join our engineering team and help us build high-quality, scalable, and user-friendly mobile applications. You will work closely with product, design, and backend teams to deliver reliable Android features and improve the overall app experience. Work mode: Remote From Bulgaria Contract: B2B Industry: Postal services 💡 Key Responsibilities • Design, develop, and maintain Android applications using Kotlin and Android Studio. • Collaborate with cross-functional teams to define and deliver new features. • Ensure application performance, quality, and responsiveness across a wide range of devices. • Integrate RESTful APIs, third-party SDKs, and backend services. • Write clean, maintainable, and testable code following best practices. • Perform code reviews and participate in architectural discussions. • Troubleshoot and resolve bugs, crashes, and performance issues. • Maintain up-to-date knowledge of Android development trends, libraries, and frameworks. • Contribute to CI/CD pipelines and support automated deployment/testing processes. ✅ Required Skills & Qualifications • 3–5+ years of hands-on experience in Android development. • Strong proficiency in Kotlin and Java. • Experience with Android Jetpack components (ViewModel, LiveData, Room, Navigation, WorkManager). • Familiarity with MVVM or Clean Architecture patterns. • Experience with Coroutines and Flow. • Strong understanding of mobile UI/UX principles. • Experience integrating RESTful APIs and working with JSON. • Proficiency with Git and version control workflows. • Experience with dependency injection frameworks like Hilt or Dagger. • Familiarity with unit and UI testing frameworks (JUnit, Espresso). • Experience working in Agile/Scrum environments. • Strong problem-solving and communication skills. ➕ Nice to Have • Knowledge of Jetpack Compose UI. • Experience with CI/CD tools (Jenkins, GitHub Actions, Bitrise, Azure DevOps). • Familiarity with analytics & crash reporting tools (Firebase, Crashlytics, AppCenter). • Experience with Kotlin Multiplatform (KMM). • Practical experience in performance profiling and optimization. ✅ What’s in It for You? • Work with modern technologies • Collaborate with international teams • Long-term and stable cooperation • Professional growth opportunities 📩 If you’re interested or would like to learn more, feel free to reach out at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Role for an experienced Android Developer to build and maintain a native Kotlin-based mobile application focused on campaigns and commercial features. The position involves designing scalable mobile architecture, developing key user-facing functionalities, and ensuring high code quality throughout the product lifecycle. Close collaboration with analysts and UX/UI designers is part of the development process. 🗂️ Requirements: Proficiency in Kotlin, Experience with Jetpack Compose, Strong knowledge of Android SDK, Understanding of OOP principles, Knowledge of algorithms and data structures, Experience with Gradle, Experience with CI/CD pipelines, Ability to solve complex technical problems independently, English B2+ for technical communication 📃 Skills: Kotlin, JetpackCompose, AndroidSDK, OOP, Algorithms, DataStructures, Gradle, CICD 🏢 Description: Opis Funkcji: Poszukujemy doświadczonej osoby w roli Android Developer do zespołu zajmującego się projektami w obszarze Kampanii i Ofert. Będziesz rozwijać kluczowe funkcje wpływające na doświadczenie klienta i współpracować blisko z zespołem w biurze. Obowiązki: Tworzenie i utrzymanie natywnej aplikacji Android w Kotlinie. Projektowanie skalowalnej i wydajnej architektury mobilnej. Budowa modułów wspierających funkcjonalności komercyjne. Zapewnienie wysokiej jakości kodu (TDD, code review, clean code). Współpraca z analitykami i projektantami UX/UI w całym cyklu produktu. Wymagania: Kotlin, Jetpack Compose, Android SDK. Dobre zrozumienie OOP, algorytmów i struktur danych. Doświadczenie z Gradle i CI/CD. Samodzielność i umiejętność rozwiązywania złożonych problemów. Angielski B2+ do komunikacji technicznej. Mile widziane: Modularne architektury, Kotlin Multiplatform (KMM). Praca z dużymi kodami. TDD, Pair Programming. Narzędzia wspierane AI (np. GitHub Copilot).

🏢 Summary: Opportunity for a Regular Android Developer to build and scale high-quality mobile applications using Kotlin and modern Android technologies. The role focuses on implementing new features, ensuring performance, and maintaining high software quality through testing and solid architecture practices. The position involves leading development efforts aligned with business needs and optimal IT solutions. 🗂️ Requirements: Minimum 3 years commercial experience in Android development, Strong proficiency in Kotlin, Practical experience with Jetpack Compose, Experience with Kotlin Coroutines, Ability to work with and modify Java code, Deep understanding of Clean Code principles, Knowledge of software architecture patterns, Strong knowledge of Android platform specifics, Experience with Continuous Integration, Experience in automated, unit, and integration testing, Ability to read and communicate using technical English 📃 Skills: Kotlin, JetpackCompose, KotlinCoroutines, Java, Android, CleanCode, Architecture, CI, UnitTesting, IntegrationTesting, AutomatedTesting 🏢 Description: 🚀 Looking for your next challenge as an Android Developer? Join our team! We are seeking an experienced and dedicated Regular Android Programmer to help us build and scale high-quality mobile applications. If you know how to effectively bridge business context with modern IT solutions, this opportunity is for you! 📱 🛠️ Your Responsibilities: Implement new Android functionalities using Kotlin. Proactively monitor application performance and troubleshoot technical issues. Ensure top-tier software quality through rigorous automated and unit testing. Lead development, programming, and implementation projects based on a strong understanding of business needs and optimal IT solutions. 🎯 Requirements: Minimum 3 years of commercial experience in developing Android solutions. Deep understanding and practical knowledge of Clean Code techniques and software architecture. Excellent command of Kotlin. Strong proficiency in Jetpack Compose and Kotlin Coroutines. Ability to understand and modify existing Java code. In-depth knowledge of Android platform programming specifics. Familiarity with the Continuous Integration (CI) approach. Proven ability to create automated, unit, and integration tests. English language proficiency sufficient for reading technical documentation, conducting technical correspondence, and participating in technical discussions. ✨ Nice to Have: Hands-on experience working in an Agile environment. Familiarity with tools like Jira, Git, and Confluence. Experience or basic knowledge in the DevOps area.

🏢 Summary: 6-month hybrid contract for an experienced Android Developer to design, build, and maintain high-performance Android applications within a collaborative team. The role focuses on developing new features, integrating APIs, optimizing performance, and ensuring code quality through best practices and reviews. Opportunity to contribute to impactful mobile projects with potential extension. 🗂️ Requirements: Minimum 5 years of Android development experience, Proficiency in Java, Proficiency in Kotlin, Experience with RESTful APIs, Experience with third-party libraries, Solid understanding of full mobile development life cycle, Knowledge of modern design patterns, Ability to design and develop high-performance Android applications, Experience in debugging and performance optimization 📃 Skills: Android, Java, Kotlin, REST, APIs, Libraries, DesignPatterns, MobileLifecycle 🏢 Description: We are seeking an experienced Android Developer with at least 5 years of experience in mobile application development. The ideal candidate will possess a strong background in building high-quality Android applications and have a solid understanding of the mobile ecosystem. This role offers an opportunity to contribute to exciting projects and further enhance your skills within a collaborative team environment. Bonus: Able to work during summer-time. Start: ASAP Length: 6 months with possible extension Location: Hybrid in Stockholm (must be located in Stockholm area) Main Responsibilities: As an Android Developer, your primary duties will include: Designing and developing high-performance Android applications. Collaborating with cross-functional teams to define and design new features. Ensuring the performance, quality, and responsiveness of applications. Identifying and fixing bugs to maintain an efficient system. Continuously discovering, evaluating, and implementing new technologies to maximize development efficiency. Participating in code reviews to ensure adherence to best practices. Maintaining up-to-date knowledge of mobile development trends. Key Requirements: Minimum 5 years of experience in Android development. Proficient in Java/Kotlin programming languages. Experience with RESTful APIs and third-party libraries. Solid understanding of the full mobile development life cycle. Familiarity with modern design patterns and best practices. Ability to work in a team-oriented environment. Strong problem-solving skills and attention to detail.

🏢 Summary: Talent Pool opportunity for an Android Developer focused on building and maintaining native Android applications using Kotlin and Java. The role involves implementing UI based on Figma designs, integrating REST APIs, working with SQL databases, and ensuring code quality through testing and version control. Candidates will contribute to high-quality, reliable mobile solutions within a structured development environment. 🗂️ Requirements: Minimum 3 years of experience as Android Developer, Strong knowledge of Kotlin, Strong knowledge of Jetpack Compose, Experience in native Android development, Knowledge of Java, Experience implementing UI from Figma designs, Experience with REST API integration, Knowledge of SQL, Experience with Git, Knowledge of JUnit, Experience with Jira Software, Experience with Confluence 📃 Skills: Kotlin, Java, Jetpack, Compose, Android, Figma, REST, SQL, Git, JUnit, Jira, Confluence 🏢 Description: This posting is part of a Talent Pool for the Android Developer role . Submitted applications will be used to enable a quick response to future business needs. We will contact selected candidates only when a relevant recruitment process is initiated. Responsibilities Developing and maintaining native Android applications using Java and Kotlin. Implementing application views based on prepared designs in Figma. Integrating mobile applications with REST API services. Working with databases and SQL queries. Writing and maintaining unit tests using JUnit. Collaborating with the development team using Git. Working with project documentation and task management tools such as Jira Software and Confluence. Ensuring high quality, performance and reliability of delivered solutions. Requirements Minimum 3 years of professional experience as an Android Developer. Strong knowledge of Kotlin and Jetpack Compose. Experience in native Android application development. Knowledge of Java. Practical experience with Figma, especially implementing prepared UI views. Good understanding of REST API integration. Knowledge of SQL. Experience with Git version control. Knowledge of JUnit. Experience with Jira Software and Confluence. Nice to have Experience in projects for public institutions or large organizations. Knowledge of mobile application architecture patterns.

🏢 Summary: Opportunity for an experienced Mobile App Developer to build and enhance Android and cross-platform applications supporting digital identity and service delivery solutions. The role focuses on developing scalable, high-quality mobile products within an Agile, multidisciplinary team environment. 🗂️ Requirements: Several years of mobile development experience, Strong knowledge of Android development, Proficiency in Kotlin, Experience working in Agile teams, Ability to contribute to application architecture and performance improvements 📃 Skills: Android, Kotlin, ReactNative, Agile, Cloud 🏢 Description: We are looking for an experienced Mobile App Developer to join a global product team working on applications that support digital identity and service delivery solutions. The role involves developing and improving mobile applications, primarily on Android, as well as contributing to cross-platform solutions. You will collaborate with a multidisciplinary team in an Agile environment to build reliable, user-friendly, and scalable products. Key Responsibilities: Develop and maintain mobile applications Collaborate with designers, analysts, and developers Contribute to application architecture and performance improvements Ensure code quality and reliability Requirements: Several years of experience in mobile development Strong knowledge of Android development (Kotlin) Ability to work in a collaborative, Agile team Good communication skills Nice to Have: Experience with cross-platform technologies (e.g., React Native) Familiarity with modern development tools and cloud environments

🏢 Summary: Mid-level Android Developer role focused on developing and maintaining Android applications for wearable devices and tablets in the retail sector. The position involves implementing advanced features such as AI assistants and communication systems, optimizing existing solutions, and resolving complex production issues. The role includes close collaboration with a Senior Android Developer and active system enhancements based on business needs. 🗂️ Requirements: Minimum 3 years commercial experience as Android Developer, Practical experience with Kotlin and Java, Knowledge of SOLID principles and design patterns, Proficiency with Android SDK, Experience with Android Studio, Experience with ADB, Experience with debugging tools, Strong understanding of multithreading, Experience with Kotlin coroutines, Knowledge of thread synchronization, Experience with Flows, English level B2 or higher 📃 Skills: Kotlin, Java, Android, AndroidSDK, AndroidStudio, ADB, SOLID, Coroutines, Flows, Multithreading, MQTT, AOSP, Linux 🏢 Description: O roli: Szukamy doświadczonego programisty Android (Mid Level), który dołączy do naszego zespołu jako wsparcie dla Senior Android Developera. Będziesz odpowiedzialny za rozwój aplikacji dedykowanych na platformę Android, skupiając się głównie na urządzeniach typu wearable oraz tabletach. To świetna okazja, aby tworzyć nowoczesne rozwiązania dla branży retail, w tym współpracować przy wdrażaniu asystenta AI oraz zaawansowanych systemów komunikacji. Twój zakres odpowiedzialności: Rozwój i utrzymanie aplikacji na platformie Android dla urządzeń wearable i tabletów. Ścisła współpraca z Android Lead Developerem w zakresie optymalizacji i modyfikacji obecnych rozwiązań. Wdrażanie innowacyjnych funkcji, takich jak asystent AI i systemy komunikacji. Samodzielne diagnozowanie i rozwiązywanie złożonych problemów obserwowanych na środowisku produkcyjnym. Aktywna modyfikacja systemu w odpowiedzi na zmieniające się wymagania biznesowe. Czego wymagamy (Must-have): Minimum 3 lata komercyjnego doświadczenia na stanowisku Android Developera. Praktyczna znajomość języków Kotlin i Java, dobrych praktyk programistycznych, zasad SOLID oraz wzorców projektowych. Biegłość w korzystaniu z Android SDK, Android Studio, ADB oraz narzędzi do debugowania. Solidna znajomość zagadnień wielowątkowości, w tym Kotlin coroutines, synchronizacji wątków oraz Flows. Język angielski na poziomie minimum B2. Umiejętność pracy w zespole, zdolność szybkiego uczenia się oraz odporność na pracę pod presją czasu. Mile widziane (Nice-to-have): Doświadczenie we wdrażaniu aplikacji bezpośrednio na urządzenia typu wearable. Rozumienie zagadnień sieciowych oraz znajomość protokołu MQTT. Znajomość AOSP (Android Open Source Project), struktury plików w systemie Android i doświadczenie z modyfikacją ROM-ów. Ogólna orientacja w zagadnieniach związanych z systemem operacyjnym Linux. Wyższe wykształcenie techniczne z zakresu informatyki lub dziedzin pokrewnych. Oferujemy: Elastyczne godziny pracy z "core hours" w przedziale 10:00 - 16:00. Dedykowany budżet szkoleniowy na podnoszenie kwalifikacji. Kartę MultiSport

🏢 Summary: Development of Android applications for advanced control systems and HMI interfaces used in connected and autonomous machines, with involvement across the full software development lifecycle. The role includes on-site testing with real machines and delivering high-quality, scalable solutions in an agile environment. 🗂️ Requirements: Minimum 5 years of Android development experience, Strong experience with Java, Strong experience with Kotlin, Experience designing and developing HMI applications, Experience working in Agile (Scrum) teams, Understanding of clean code principles and maintainable architecture, Fluent English, Fluent Polish, Residing in Poland 📃 Skills: Android, Java, Kotlin, HMI, Scrum, Agile, CleanCode, SDLC, English, Polish 🏢 Description: As an Android Developer, you will play a key role in a project focused on developing advanced control software for connected, electric, highly automated, and autonomous machines used worldwide. You’ll work closely with real machines, testing your software on-site and contributing to the full software development lifecycle—from concept to deployment. Your tasks Design, develop, and maintain Android applications for advanced machine interfaces Build and evolve HMI (Human-Machine Interface) concepts Participate in the full software development lifecycle: requirements, design, coding, testing, and verification Collaborate with developers, designers, and product owners to deliver end-to-end solutions Contribute to continuous improvement initiatives in an agile development environment Ensure high-quality, maintainable, and scalable code following best practices Requirements Minimum 5 years of experience in Android development using Java and Kotlin Strong understanding of clean code principles and maintainable software design Experience working in Agile (Scrum) teams Ability to collaborate effectively in cross-functional and international environments Strong problem-solving skills and a proactive, “can-do” attitude Fluency in English (written and spoken) Interest in learning new technologies and sharing knowledge with others Fluent Polish required Residing in Poland required What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Offer for an Android Developer to develop and maintain a mobile application focused on transfers and payments, including new features, backend integrations, and architectural improvements. The role involves working in a cross-functional team to ensure secure and high-quality mobile transactions. Hybrid work model with mostly remote work and occasional office visits. 🗂️ Requirements: Minimum 4 years of commercial experience in software development, Minimum 2 years of experience as Android Developer, Proficiency in Kotlin, Experience with Android Studio, Experience with Android SDK, Experience with Kotlin Coroutines, Experience with Kotlin Flow, Experience with Android Architecture Components, Experience with Dagger2, Experience with Jetpack Compose 📃 Skills: Kotlin, Android, AndroidStudio, AndroidSDK, Coroutines, Flow, ArchitectureComponents, Dagger2, JetpackCompose, Git, Bitbucket, GitHub, CI/CD, TeamCity, Jenkins, Gradle, Jira, Confluence 🏢 Description: Poszukujemy Android Developera , który dołączy do zespołu odpowiedzialnego za rozwój i utrzymanie aplikacji mobilnej w obszarze przelewów i płatności . Zespół pracuje nad nowymi funkcjonalnościami, integracjami z backendem oraz doskonaleniem architektury aplikacji, zapewniając milionom użytkowników szybkie i bezpieczne transakcje mobilne. Tryb pracy: praca zdalna + 2x w miesiącu dojazdy do biura w Łodzi Zakres obowiązków Tworzenie i rozwijanie funkcjonalności aplikacji mobilnej w obszarze przelewów i płatności Integracja z serwisami backendowymi Dbanie o architekturę oraz jakość implementowanych rozwiązań Tworzenie i utrzymywanie testów automatycznych i jednostkowych Ścisła współpraca z zespołem produktowym , UI/UX , DevOps, QA i Release Management Udział w code review oraz pracach zespołowych Monitorowanie i rozwiązywanie problemów technicznych użytkowników Praca w 10‑osobowym zespole Android/iOS, rozwijającym obszar płatności i przelewów Oczekiwania Minimum 4 latami doświadczenia komercyjnego , w tym 2+ lata w pracy jako Android Developer, z biegłą znajomością Kotlin oraz środowiska Android Studio . Wymagamy doświadczenia z Android SDK , Kotlin Coroutines & Flow , Android Architecture Components , Dagger2 oraz Jetpack Compose . Mile widziana znajomość wzorców projektowych: Clean Architecture , MVVM , MVI , a także narzędzi kontroli wersji Git , Bitbucket , GitHub . Dodatkowym atutem będzie: doświadczenie z CI/CD (TeamCity, Jenkins, Gradle), umiejętność tworzenia testów jednostkowych, integracyjnych i UI , praktyczna znajomość Jira i Confluence , doświadczenie w pracy wieloprojektowej i w środowisku Agile , a także proaktywna postawa , samodzielność i wysokie umiejętności interpersonalne. Oferujemy Stałe wsparcie osobistego agenta , dbającego o Twoją ciągłość projektową, kontakt z klientem, niezbędne formalności, komfort pracy oraz rozwój Rozwój zawodowy nie tylko podczas projektu – możesz zaangażować się w przekazywanie wiedzy innym w ramach oferty 7N Services kierowanej do klientów 7N Dostęp do 7N Learning & Development – platformy rozwojowo-edukacyjnej z webinarami, biblioteką artykułów i raportów branżowych oraz zaproszeniami na wydarzenia rozwojowe – techniczne, biznesowe oraz life-stylowe Udział w wybranych eventach organizowanych przez klienta (wyjazdy integracyjne, spotkania świąteczne) Relacje i dostęp do wiedzy najbardziej doświadczonych ekspertów IT na rynku – średni staż zawodowy naszego Konsultanta w Polsce to ponad 10 lat Narzędzia niezbędne do świadczenia usług Pracę hybrydową z przewagą pracy zdalnej z dowolnego miejsca w Polsce (90%) Spotkanie zespołowe w biurze klienta w Warszawie raz na 2 tygodnie Pakiet benefitów zaplanowany od A do Z, czyli dofinansowanie do opieki medycznej, ubezpieczenia na życie, karty sportowej dla Ciebie i Twoich bliskich, a także zniżki do sklepów w Polsce i za granicą. O 7N Ciągłe poszukiwanie projektów, trudne negocjacje stawek, brak wsparcia w rozwoju – brzmi znajomo? W 7N zyskujesz nie tylko stabilność kontraktów, ale też zaangażowanie osobistego opiekuna dbającego o Twój komfort zawodowy i stały dostęp do inicjatyw rozwojowych. Naszym celem jest zapewnienie Ci stabilnej i komfortowej współpracy, która przyczyni się do sukcesu Twojego jako eksperta IT oraz naszych klientów. Budujemy trwałe relacje, bazując na skandynawskich wartościach i 30-letnim doświadczeniu w tworzeniu rozwiązań IT dla ponad 200 organizacji.

🏢 Summary: Opportunity for a Senior Android Developer to build and scale a large consumer mobile application used daily by millions across Europe. The role focuses on delivering a high-quality native Android experience, contributing to architecture decisions, and improving engineering standards within a growing product. You will work in cross-functional teams to develop scalable, maintainable, and high-performance mobile solutions. 🗂️ Requirements: 5+ years commercial experience in Android development, Strong hands-on experience with Kotlin, Strong hands-on experience with Java, Experience refactoring and improving existing codebases, Solid understanding of MVVM architecture, Knowledge of Clean Architecture principles, Understanding of SOLID principles, Experience with Git, Experience with CI/CD pipelines, Experience with release management processes, Strong knowledge of Android development best practices, Understanding of Material Design principles, Experience working in Agile cross-functional teams, Professional English proficiency 📃 Skills: Android, Kotlin, Java, MVVM, CleanArchitecture, SOLID, Git, CI/CD, MaterialDesign, Agile 🏢 Description: Senior Android Developer About the Project Join a team building one of Europe's leading mobile applications, used daily by millions of users. The product is undergoing rapid growth and international expansion, with a strong focus on scaling its mobile platform and delivering a best-in-class native Android experience across multiple European markets. We are looking for an experienced Senior Android Developer who wants to have a real impact on product development, mobile architecture, and engineering standards while working on a large-scale consumer application. Your Responsibilities Develop high-quality, testable, and maintainable Android applications. Contribute to architectural decisions and help build scalable mobile solutions. Participate in code reviews and promote engineering best practices. Collaborate closely with Product Managers, Designers, QA Engineers, and other development teams. Create and maintain technical documentation and specifications. Continuously improve development processes, tools, and workflows. Evaluate and implement new technologies to enhance application performance and development efficiency. Requirements 5+ years of commercial experience in Android development. Strong hands-on experience with Kotlin and Java. Proven experience in refactoring and improving existing codebases. Solid understanding of MVVM, Clean Architecture, and SOLID principles. Experience with Git, CI/CD pipelines, and release management processes. Strong knowledge of Android development best practices. Understanding of Material Design and modern mobile UI/UX principles. Experience working in Agile, cross-functional teams. Good communication skills and professional English proficiency. Nice to Have Experience working on large-scale mobile applications with a significant user base. Familiarity with modern Android libraries and frameworks. Experience with performance optimization and application monitoring. Interest in mobile platform development and engineering excellence.