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Uno Platform is an open-source cross-platform framework that allows developers to write applications in C# and XAML that run on Windows, iOS, Android, web (WebAssembly), and other platforms. It provides a shared codebase while allowing platform-specific implementations when needed, reducing duplication and maintenance overhead.
The framework brings .NET/C# ecosystem capabilities to mobile and web development, making it ideal for organizations with existing .NET expertise. Uno Platform is built on modern technologies like WebAssembly, .NET 8+, and supports MVVM patterns. It's used by enterprises in financial services, healthcare, and software development for cross-platform applications.
Uno Platform is open-source and free. The framework is maintained by an active community and commercial sponsor (Nventive). It integrates with Visual Studio and supports the full .NET ecosystem.
Hire Uno Platform developers when you have C# developers and need to build cross-platform applications for Windows, iOS, Android, and web. Common scenarios include mobile apps for existing .NET-based companies, internal tools accessible across devices, and applications needing consistent behavior across platforms.
Uno Platform is ideal for organizations with legacy .NET infrastructure who want to modernize without abandoning their technology stack. It's excellent for fintech and healthcare companies where code reuse and compliance are critical. The framework allows code sharing between server and client (shared business logic).
Avoid Uno Platform if you don't have C# expertise, or if you need a lightweight framework for simple applications. Also skip it if you need maximum design flexibility or plan to customize deeply for each platform.
Typical team composition: Uno Platform specialists with C# background, paired with designers familiar with XAML, and platform-specific engineers for iOS and Android customizations.
Look for developers with C# expertise and understanding of XAML/WPF patterns. Key skills include cross-platform architecture, MVVM patterns, platform-specific code with conditional compilation, and WebAssembly basics. Strong developers understand when to share code and when platform-specific implementations are needed.
Red flags: developers without C# background, those unfamiliar with XAML or WPF patterns, or those lacking cross-platform thinking. Avoid candidates treating it like native development.
Junior (1-2 years): Understand C# fundamentals, basic XAML, and how to build simple cross-platform features. Need mentoring on architecture.
Mid-level (3-5 years): Can architect applications, optimize performance, handle platform-specific code, and mentor others.
Senior (5+ years): Design large-scale applications, make strategic technology decisions, guide teams on architecture.
Build a Uno Platform app with shared business logic, MVVM pattern, and UI that works across Windows/web, including platform-specific code where needed. Time: 4-5 hours. Rubric: Is architecture well-designed? Is code properly shared? Does it compile and run?
Uno Platform developers in LatAm command competitive C# salaries plus cross-platform premium. 2026 rates:
US rates are 25-30% higher. Brazil, Argentina, Mexico have strong C# talent pools with emerging Uno expertise.
LatAm has strong C# and .NET expertise. Developers are familiar with enterprise patterns and understand cross-platform challenges. Time zones (UTC-3 to UTC-5) provide 6-8 hour overlap with US East Coast. Cost savings of 40-60% with senior-level expertise make LatAm hiring valuable.
Share requirements: application scope, platforms needed, timeline. South searches for Uno Platform specialists with C# background. We send 2-3 candidates for your technical interviews. Once selected, South handles verification, contracting, and 30-day replacement guarantee support.
Ready to hire? Start at https://www.hireinsouth.com/start.
Yes. Production-ready with active maintenance and growing adoption.
60-80% of application code typically in shared modules, especially business logic and some UI logic.
Yes, though best suited for enterprise and internal tools due to platform consistency philosophy.
Mid-level: $64k-84k/year. Senior: $93k-128k/year.
Typically 2-3 weeks. Rush placements possible.
Yes. 30-day replacement guarantee if expectations aren't met.
