Android Developer

Android Developer – KotlinLocation: Driebergen-Rijsenburg, NetherlandsWorking Hours: 32 hours/weekContract: ASAP – 23 August 2027Extension: PossibleMaximum Rate: €55/hourExperience: Minimum 3 yearsEducation: HBO levelEmployment Type: ZZP/Self-employed not permittedApplication Deadline: 25 August 2026, 13:00About the RoleWe are looking for a Medior/Senior Android Developer to join the mobile development team of a leading banking organisation in the Netherlands.You will be responsible for developing and maintaining communication features within a mobile banking application, with a strong focus on stability, security, performance, user experience, and code quality.You will work in a multidisciplinary and empowered product team alongside Android and iOS developers, backend developers, testers, UX specialists, Change Analysts, Product Managers, and other stakeholders.Key ResponsibilitiesParticipate actively in refinement and translate user stories into technical solutions.Develop and maintain high-quality Android applications using Kotlin and modern Android technologies.Build user interfaces with Jetpack Compose.Write and maintain unit, UI, and automated tests.Investigate and resolve production incidents.Contribute to technical decisions and architectural discussions.Collaborate closely with business and technical stakeholders.Focus on clean, maintainable, testable, and reliable code.Contribute to knowledge sharing within the development team.Continuously improve application quality, performance, and end-user experience.Independently make technical decisions while involving developers or architects when appropriate.Required Skills & ExperienceMinimum 3 years of professional Android development experience.Strong Kotlin development experience.Experience developing modern Android applications.Good understanding of Android Jetpack.Strong or demonstrable experience with Jetpack Compose.Experience with Kotlinx Coroutines and Flow.Experience writing unit and UI tests.Understanding of clean code and solid software architecture.Ability to translate business requirements into effective technical solutions.Strong focus on user experience and maintainable technical foundations.Proactive and pragmatic approach to software development.Strong communication and collaboration skills.Fluent in spoken and written English.Nice-to-Have SkillsExperience with Gradle.Experience with Compose UI Tests.Experience with Paparazzi.Experience with Espresso.Experience with TeamCity / CI/CD.Experience with contract-based API generation.Experience with Agentic Coding.Dutch-speaking.Experience working within a product-led organisation.Experience in banking or another regulated environment.Technology StackKotlinJetpack ComposeMVVMAndroid Jetpack LibrariesKotlinx Coroutines & FlowGradleTeamCityCompose UI TestsPaparazziEspressoContract-based API generation