Senior Xamarin.Android Developer (.NET) – 12‑Month Contract in Brussels

About the role

We are seeking a Senior Xamarin.Android Developer with strong .NET expertise to join a leading client’s Execution Management team in Brussels on a 12‑month contract. You will own the design, development, and maintenance of high‑performance Android applications that support operational excellence.

Key responsibilities

• Design and develop Android applications using .NET and Xamarin.Android.
• Take ownership of features from concept through delivery and support.
• Collaborate with solution architects, business stakeholders, and fellow developers.
• Implement Clean Architecture, SOLID principles, and offline‑first synchronization.
• Write automated unit tests and contribute to CI/CD pipelines with Azure DevOps.
• Participate in technical discussions, architecture decisions, and continuous improvement initiatives.

Required profile

• 5+ years of professional .NET development.
• 3+ years of hands‑on Xamarin.Android/.NET for Android experience.
• Proven experience with MvvmCross in production.
• Strong understanding of Android native concepts, lifecycle, and performance optimization.
• Experience building Azure DevOps CI/CD pipelines and integrating with REST APIs.

Required skills

• .NET (async/await, LINQ, design patterns, security best practices)
• Xamarin.Android
• MvvmCross
• Android UI development and responsive layouts
• Android lifecycle management, services, background processing, notifications
• Clean Architecture, SOLID principles
• Azure DevOps CI/CD pipelines
• REST API integration
• Git version control