Senior .NET Xamarin Developer - Transport Sector - ASAP start - Freelance / CDI

TLDR

Take ownership of designing and building high-quality, well-tested software solutions within the Transport Execution Management domain while working closely with stakeholders.

Mandatory:

.NET development: 10+ years
Azure Cloud development: 5+ years
.NET Core Web API development: 5+ years
Native .NET for Android (Xamarin): 5+ years
Blazor: 1+ year
React Native: 1+ year
Professional expertise in unit testing
Fluent in English (C2)
Ability to work 20 days on site at the office (location: Brussels; schedule to be determined by the client)

Technical Expertise

.NET development: Demonstrates deep mastery of the ecosystem, including language features, LINQ, async/await, security practices, and appropriate use of data structures and design patterns.
Android development: Strong experience building complex native .NET/Xamarin Android applications, with mastery of the Android lifecycle and native bindings.
Code quality & craftsmanship: Writes clean, maintainable, SOLID code aligned with best practices.
Web API design & development: Designs secure and performant .NET Core Web APIs.
Azure cloud: Uses Azure services, PaaS components, and event‑driven architectures effectively.
Unit testing: Creates meaningful, maintainable, automated tests with high coverage and clear intent.
CI/CD & DevOps: Experience setting up robust pipelines (Azure DevOps) and managing containerized deployments using Kubernetes and Docker.
SQL & database design: Skilled in modeling, querying, and optimizing relational databases.
Git & version control: Applies solid branching strategies and collaborates efficiently using Git.