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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mobile Software Developer - **Company:** Keystone Solutions - **Location:** Leuven, Belgium - **Contract:** Permanent contract - **Skills:** Flutter, Multitier Architecture, Data Analysis, Android Software Development, Apple IOS, Cloud Computing, Dependency Injection, Mobile Application Software, Microsoft SQL Server, Model View ViewModel, Data Storage Technologies, Modern Ui, IT Architecture, Firebase, Backend, Kotlin, People Soft, Jetpack Compose, React Native, Asynchronous Programming, Restful APIs - **Published:** August 2, 2026 - **Apply:** https://www.careerjet.be/jobad/be72834662163fe8dea4113a870dc7d343 ## About the Role * You hold a master's degree in IT or have equivalent experience. * You are a specialist in Android but have a broad interest in the entire mobile landscape. Your Tech Stack & Skills: * Kotlin & Core: Deep knowledge of Kotlin (including Coroutines & Flow) and the Android SDK. * Modern UI: Experience with (or strong interest in) Jetpack Compose for building modern interfaces. * Architecture: Ability to build scalable apps following principles like MVVM, Clean Architecture, and Dependency Injection (e.g., Koin). * Firebase: Experience with Firebase services such as Crashlytics, Cloud Messaging, Analytics, and Firestore. * Networking: Familiarity with REST APIs (using Retrofit and/or OkHttp; Ktor client is a plus) and local data storage (e.g., Room). Your Mindset & Broader Knowledge: * Flexibility: While you are currently an Android expert, you are open to expanding your skills to iOS (Swift) or Cross-platform (e.g., Flutter/React Native/KMP) as projects require. * Backend Willingness: You are not afraid to learn about our backend environment (PeopleSoft tools, SQL Server). * Team Player: Knowledge sharing and eagerness to learn are second nature to you. * Communication: You are proficient in both Dutch and English., If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at . Duration: As soon as possible - 31/12/2026 5 months * (full time) Skills required: * Android SDK - Level: Expert - Most recent: Any time * IT Architecture - Level: Advanced - Most recent: Any time * Kotlin (inclusief Coroutines & Flow) - Level: Expert - Most recent: Any time * Modern UI: Jetpack Compose. - Level: Expert - Most recent: Any time * Networking - Level: Advanced - Most recent: Any time Language requirements: Dutch Level Native or bilingual proficiency English Level Professional working proficiency ## Description We are seeking a driven Mobile Software Developer for a consultancy mission at a client site, representing Keystone Solutions. In this role, you will be part of a strategic IT team that maintains non-medical hospital applications, focusing on Android development while being open to future platforms. Responsibilities: * You will bridge the gap between our complex ERP backend and end-users by building intuitive, high-performance mobile apps that enhance the efficiency of thousands of hospital staff. * Android Development: You will start developing and maintaining native Android applications written in Kotlin, utilizing the Android Jetpack ecosystem. * Future-proof Mindset: You will stay updated on mobile trends and be willing to evolve with potential shifts towards other platforms (iOS or Cross-platform frameworks). * Innovation & Architecture: You will translate functional needs into technically advanced solutions, contributing to architecture discussions (MVVM, Clean Architecture), security, and UX/UI. * Integration & Monitoring: You will connect apps to backend systems and use Firebase for monitoring (Crashlytics), analytics, and messaging (Cloud Messaging). * End-to-End Responsibility: Over time, you will execute projects from A to Z, including analysis, development, release, and user guidance. ## Related Videos - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Using Serious Tech for a Silly Game - How to Build an MVP with Flutter](https://www.wearedevelopers.com/videos/728-using-serious-tech-for-a-silly-game-how-to-build-an-mvp-with-flutter) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Flutter Packages and Plugins - A Look Under the Hood](https://www.wearedevelopers.com/videos/555-flutter-packages-and-plugins-a-look-under-the-hood) - [Intro to Flutter Development](https://www.wearedevelopers.com/videos/170-intro-to-flutter-development) - [Writing truly cross plattform applications using flutter](https://www.wearedevelopers.com/videos/456-writing-truly-cross-plattform-applications-using-flutter) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Software Developer Salary in The Netherlands [2023]](https://www.wearedevelopers.com/magazine/217-software-developer-salary-in-the-netherlands-2023) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam)