Mobile Software Developer

Keystone Solutions; Vlaams-Brabant; Sur place; EUR 54 000 - 80 000; Plein temps

Résumé du poste

Keystone Solutions is seeking a Mobile Software Developer to join a consultancy mission at a client site in Vlaams-Brabant. You will focus on Android development in Kotlin, using Jetpack components, and will be open to future platforms.

You will collaborate on MVVM/Clean Architecture, security, and UX/UI while integrating with backend systems and Firebase services. This role demands a master’s degree or equivalent experience, fluency in Dutch and English, and a proactive, team-oriented mindset.

Qualifications

• Master's degree in IT or equivalent experience.
• Android specialist with broad interest in the mobile landscape.
• Strong Kotlin knowledge, including coroutines and Flow.
• Experience with MVVM, Clean Architecture and DI.

Responsabilités

• Bridge ERP backend to end-users by building high-performance mobile apps.
• Develop and maintain native Android apps in Kotlin using Jetpack components.
• Stay current with mobile trends and adapt to iOS or cross-platform needs.
• Contribute to architecture, security and UX/UI discussions.
• Integrate with backend systems and use Firebase for monitoring and messaging.
• Own projects end-to-end from analysis to release and user guidance.

Connaissances

Android development

Kotlin

Jetpack Compose

MVVM

Clean Architecture

DI (Koin)

Firebase

REST APIs

Room

Dutch

English

Formation

Master's degree in IT

Outils

Retrofit

OkHttp

Ktor

Firebase

Room

Description du poste

Mission Overview:

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.

Requirements:

• 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.

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