Senior Kotlin Developer

🏢 Summary: Oferta B2B dla doświadczonego Android Developera do zdalnego rozwoju nowoczesnych aplikacji mobilnych, w tym bankowości mobilnej, z jednym dniem pracy biurowej miesięcznie. Rola obejmuje rozwój w Kotlinie i Kotlin Multiplatform, projektowanie architektury, testowanie, code review oraz pracę w rozproszonym zespole. Stawka wynosi do 1300 PLN netto za MD plus VAT. 🗂️ Requirements: Minimum 5 lat doświadczenia jako Android Developer, Minimum 3 lata doświadczenia z Kotlin Multiplatform, Znajomość Clean Architecture i SOLID, Znajomość MVI, Minimum 2 lata doświadczenia z RxJava i Coroutines, Doświadczenie z Koin, Doświadczenie z OkHttp, Znajomość Compose i Compose Multiplatform, Umiejętność testowania w JUnit4, MockK i Roborazzi, Doświadczenie z Zuul CI, Doświadczenie z Git i Gerrit, Doświadczenie w code review, Samodzielna analiza i rozwiązywanie problemów technicznych 📃 Skills: Android, Kotlin, KotlinMultiplatform, CleanArchitecture, SOLID, MVI, RxJava, Coroutines, Koin, OkHttp, Compose, ComposeMultiplatform, JUnit4, MockK, Roborazzi, Zuul, Git, Gerrit, CI/CD, BDD 🏢 Description: B2B, stawka do 1300 PLN MD + VAT Tryb: Praca zdalna + 1 dzień pracy z biura w miesiącu Poszukujemy doświadczonego Android Developera, który będzie odpowiedzialny za rozwój nowoczesnych aplikacji mobilnych, w tym rozwiązań z obszaru bankowości mobilnej. Zakres obowiązków: Projektowanie i rozwój aplikacji mobilnych w oparciu o Kotlin i Kotlin Multiplatform. Tworzenie rozwiązań zgodnie z zasadami Clean Architecture, SOLID oraz wzorcem MVI. Implementacja komunikacji sieciowej, mechanizmów asynchronicznych oraz dependency injection. Tworzenie i utrzymywanie testów jednostkowych, BDD oraz testów screenshotowych. Udział w code review i współpraca w dużych, rozproszonych zespołach projektowych. Analiza i rozwiązywanie problemów technicznych. Praca z systemami kontroli wersji oraz procesami CI/CD. Wymagania: Minimum 5 lat doświadczenia jako Android Developer. 3 lata doświadczenia z Kotlin Multiplatform. Znajomość Clean Architecture oraz zasad SOLID. Znajomość architektury prezentacji MVI. Minimum 2 lata doświadczenia w pracy z RxJava i Coroutines. Doświadczenie z Koin. Doświadczenie z OkHttp. Znajomość Compose oraz Compose Multiplatform. Umiejętność pisania testów z wykorzystaniem JUnit4, MockK oraz Roborazzi. Doświadczenie w pracy z Zuul CI. Doświadczenie z Git i Gerrit. Doświadczenie w przeprowadzaniu code review. Umiejętność samodzielnej analizy i rozwiązywania problemów. Mile widziane: Znajomość zagadnień bezpieczeństwa, Google Pay SDK, Android SDK oraz Play Store SDK. Wiedza z zakresu kryptografii (szyfrowanie danych, skróty, podpisy kluczem). Znajomość platformy iOS i środowiska Xcode. Doświadczenie w pracy z narzędziami AI wspierającymi rozwój oprogramowania. Doświadczenie w bankowości mobilnej. Doświadczenie przy tworzeniu aplikacji mobilnych dla sektora bankowego.

🏢 Summary: Join a team developing, delivering, and maintaining production Android applications for B2B and B2C clients across Europe. The role covers mobile and connected-system architecture, app quality and performance, CI/CD, production monitoring, and Agile collaboration. 🗂️ Requirements: 2+ years of commercial Android application development experience, Bachelor’s degree or higher in Computer Science or Software Engineering, Experience delivering Android apps to customers, Hands-on CI/CD experience, Mobile and backend architecture problem-solving experience, Knowledge of software engineering principles, testing, data structures and algorithms, Knowledge of object-oriented design patterns, dependency injection, SOLID and Clean Code, Experience with Agile methodologies, English proficiency 📃 Skills: Android, Kotlin, AWS, TypeScript, JavaScript, Node.js, REST, CI/CD, Testing, Docker, Kubernetes, Jenkins, Terraform, CircleCI, GitLabCI, Datadog, Elixir, C++, C#, Golang, Erlang, Python 🏢 Description: About the role We are seeking candidates for our client, which operates in Europe. You will be a member of a team responsible for the development and delivery of mobile Android apps. Hands-on experience in delivering Android apps to customers, supported with CI/CD processes and production monitoring, is a requirement. Technologies we work with: Kotlin, Android, AWS, Typescript, JavaScript, Node.js, REST APIs. Responsibilities: Development and delivery of Android apps for B2B or B2C clients Design software architecture between mobile apps and systems that they connect with Follow and improve the concepts of dependency injection and threading inside apps Scoping and assessing the complexity of features Continuously improve the quality and performance of mobile apps Maintaining apps on production used by consumers from several European countries Monitor and create prototypes for new technological opportunities (E.g., WearOS) Participating in sprint planning, daily sprints and meetings with product owners for grooming new features Collaborating with other team members and teams that depend on the functionalities that you develop Required qualifications: Minimum of 2 years commercial work experience in building Android apps Bachelor's or higher degree in Computer Science, Software Engineering Strong understanding of software engineering principles, testing, data structures and algorithms Solid hands-on experience in solving architectural problems for mobile apps and backend services Strong hands-on experience of CI&CD processes Understanding of OO design patterns, dependency injection, SOLID principles and Clean Code Able to work with Agile methodologies such as SCRUM and/or Kanban Good communication and collaboration skills Team player Self-motivation, proactive attitude Proficiency in English, it’s our daily business language Nice to have: Experience in developing Cloud and Infrastructure solutions with AWS and CI/CD processes supported by tools like Docker, Kubernetes, Jenkins, Terraform, CircleCI, GitlabCI, Datadog, etc. Working experience with one of the object-oriented and/or functional languages such as Elixir, C++, C#, Golang, Erlang, Python

🏢 Summary: Long-term Senior Android Developer role building and improving a secure, scalable native mobile application for an insurance-sector client. The role covers feature development, architecture, testing, performance optimization, and cross-functional Agile collaboration. 🗂️ Requirements: 5+ years of commercial Android development experience, Strong Kotlin knowledge, Jetpack Compose experience, Android SDK and architecture components knowledge, MVVM architecture experience, Coroutines, Flow, and asynchronous programming knowledge, REST API experience, Hilt or Dagger dependency-injection experience, Unit and UI testing experience, Git and CI/CD practices knowledge, Agile/Scrum team experience, English proficiency at B2 level or higher 📃 Skills: Android, Kotlin, Jetpack, Compose, MVVM, Coroutines, Flow, REST, Hilt, Dagger, Git, CI/CD, Agile, Scrum 🏢 Description: About the project We’re looking for a Senior Android Developer to join a long-term project for one of our clients in the insurance sector. You’ll be working on the development and enhancement of a modern mobile application used by thousands of customers, collaborating with cross-functional teams to deliver secure, high-quality digital services. This is an opportunity to work in a mature Agile environment where code quality, user experience, and engineering best practices are highly valued. Your responsibilities Design, develop, and maintain native Android applications Build new features and improve existing functionalities Collaborate with Product Owners, UX/UI Designers, QA Engineers, and Backend Developers Ensure application performance, security, and scalability Write clean, maintainable, and testable code Participate in code reviews and technical discussions Troubleshoot production issues and optimize application stability Contribute to architecture decisions and technical improvements Requirements 5+ years of commercial experience in Android development Strong knowledge of Kotlin Experience with Jetpack Compose Solid understanding of Android SDK and Android architecture components Experience with MVVM architecture Knowledge of Coroutines , Flow , and asynchronous programming Experience with REST APIs Familiarity with dependency injection frameworks (Hilt or Dagger) Experience with unit testing and UI testing Good understanding of Git and CI/CD practices Experience working in Agile/Scrum teams English at B2 level or higher Nice to have Experience in the insurance, banking, or fintech sector Knowledge of Clean Architecture Experience with Firebase Familiarity with GraphQL Experience publishing applications to Google Play Knowledge of accessibility and mobile security best practices