What does a Universal Windows Platform (UWP) developer do?
A Universal Windows Platform (UWP) developer builds client applications that run across the Windows 10 and Windows 11 device families using Microsoft APIs and XAML user interfaces. This role focuses on creating apps that adapt to different screen sizes and input methods while maintaining consistent performance on desktops, tablets, and other supported hardware. The developer manages the complex app lifecycle to ensure software behaves correctly when users switch between foreground and background states. They declare specific device capabilities in the package manifest to grant the application access to necessary system resources.
- Design and implement responsive user interfaces using XAML markup and code-behind logic to create intuitive experiences for mouse, touch, and pen inputs. The developer structures visual elements to scale appropriately across various device form factors without breaking layout integrity. They bind UI components to data sources and handle user events through C# event handlers or command patterns. This work ensures the application remains accessible and functional regardless of the specific Windows device running the software.
- Implement background tasks and manage app lifecycle transitions to preserve state during suspend and resume events. The developer registers triggers using BackgroundTaskBuilder to execute code when the app is not actively on screen. They write handlers for EnteredBackground and LeavingBackground events to save user progress and release system resources efficiently. This process prevents data loss and maintains battery life by ensuring the app responds correctly to system interruptions and resource constraints.
- Configure the package manifest to declare required capabilities such as location access, microphone usage, or file system permissions. The developer selects only the specific permissions the app needs to function, which helps maintain user trust and security compliance. They use Visual Studio debugging tools to manually trigger suspend, resume, and background activity scenarios for thorough testing. This validation step confirms that the app handles lifecycle changes gracefully before deployment to the Microsoft Store or enterprise distribution channels.
How to hire a Universal Windows Platform (UWP) developer on Upwork
Step 1: Post a job
Define your app requirements clearly to attract developers who specialize in Microsoft Windows environments. Use the Job Post Generator powered by Uma™, Upwork's Mindful AI to draft a precise description. Describe your needs in a few sentences and Uma drafts a job post for the role. You can write a new post, update a saved draft, or reuse an existing post.
- Specify that the developer must build user interfaces using XAML and handle code-behind logic for Windows 10 or 11 devices.
- List required capabilities such as background task implementation and app lifecycle management for suspend and resume states.
- Request experience with Visual Studio debugging tools to validate foreground and background transitions during development.
Step 2: Evaluate candidates
Review portfolios for evidence of shipped UWP applications that utilize Windows Runtime APIs effectively. Uma can run instant video interviews and build shortlists with side-by-side comparisons to help you assess technical fit.
- Look for source code samples that demonstrate proper declaration of device capabilities in the package manifest file.
- Check for examples of background tasks registered via BackgroundTaskBuilder that handle triggers like TimeTrigger correctly.
- Verify that previous projects include tested behavior for app suspension and resumption across different device families.
Step 3: Interview your top choices
Discuss specific technical challenges related to Windows App Development to gauge their problem-solving approach. Interviews can be scheduled and conducted within Upwork Messages with an immediate transcript and summary after each one.
- Ask how they manage state preservation when the operating system suspends the application to free up resources.
- Question their process for debugging lifecycle events using Visual Studio tooling before deployment.
- Inquire about their method for handling cancellation tokens in background tasks to prevent errors during exit.
Step 4: Agree on scope and begin work
Set clear milestones for UI completion, background logic implementation, and final package preparation. Use Upwork Messages and the contract workroom for communication and project management, plus identity verification, payment protection, hourly tracking, and project funds for security.
- Define deliverables such as the complete UWP application source code and a configured package manifest.
- Establish testing criteria that require validation of suspend and resume scenarios in the Visual Studio debugger.
- Agree on the final output format, such as an app deployment package ready for distribution via the Microsoft Store.
Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this article. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyze and determine the tools or services that would best fit their specific needs and situation.
The rates and information provided in this article are based on current data and industry sources available at the time of publication. Freelance rates can vary depending on factors such as experience, location, project scope, and market conditions. Readers are encouraged to conduct their own research to confirm current rates and trends, as this information may change over time.