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Senior Desktop Application Developer

$50/hr Starting at $200

I’m a Senior Desktop Application Developer with 10+ years of experience building high-performance, scalable desktop software across Windows, macOS, and Linux, with strong expertise in modern desktop development tech stacks.

I develop cross-platform desktop applications using Electron, Tauri, Qt (Qt Widgets, Qt/QML), and .NET MAUI, enabling efficient delivery across multiple operating systems. For Windows-focused applications, I use .NET technologies including WPF, WinForms, UWP, and WinUI 3. On macOS, I work with Swift, SwiftUI, and Objective-C, and for Linux and system-level development, I use C and C++ with GTK and Qt.

I build desktop applications using C#, C++, and Rust, focusing on performance, memory efficiency, and deep OS integration. I design scalable architectures including MVVM, MVC, MVP, and Clean Architecture, ensuring modular, maintainable, and testable codebases.

For UI development, I create rich and responsive interfaces using XAML (WPF, WinUI), Qt/QML, SwiftUI, and web-based stacks (React, TypeScript, HTML5, CSS3) within Electron and Tauri environments.

I integrate APIs and services using REST and GraphQL with tools like HttpClient, Axios, and Fetch API, and implement real-time features using WebSockets and SignalR. I handle authentication and security using JWT, OAuth2, OpenID Connect, and secure credential storage mechanisms such as Windows Credential Manager and macOS Keychain.

I work with embedded and local databases including SQLite, LiteDB, Realm, and LevelDB, as well as desktop clients for PostgreSQL and MySQL. I implement efficient data caching and offline-first capabilities.

I integrate system-level features such as file system operations, multithreading, background services, inter-process communication (IPC), and hardware interactions (USB, serial ports, Bluetooth). I also work with graphics and rendering technologies including OpenGL, DirectX, and Vulkan when needed.

For packaging and distribution, I build installers and manage releases using MSIX, ClickOnce, NSIS, Inno Setup, WiX Toolset, DMG, and AppImage, ensuring smooth installation and update experiences across platforms.

I manage CI/CD pipelines using GitHub Actions, GitLab CI, Jenkins, and Azure DevOps, automating build, test, packaging, and release workflows.

I ensure quality through testing frameworks such as NUnit, xUnit, MSTest, Google Test (gtest), Catch2, and Playwright for UI testing. I follow best practices in clean code, modular design, and Agile development.

With a strong foundation in C/C++ and .NET, I bring deep system-level expertise and a performance-first mindset, delivering reliable, secure, and production-ready desktop applications across platforms.

About

$50/hr Ongoing

Download Resume

I’m a Senior Desktop Application Developer with 10+ years of experience building high-performance, scalable desktop software across Windows, macOS, and Linux, with strong expertise in modern desktop development tech stacks.

I develop cross-platform desktop applications using Electron, Tauri, Qt (Qt Widgets, Qt/QML), and .NET MAUI, enabling efficient delivery across multiple operating systems. For Windows-focused applications, I use .NET technologies including WPF, WinForms, UWP, and WinUI 3. On macOS, I work with Swift, SwiftUI, and Objective-C, and for Linux and system-level development, I use C and C++ with GTK and Qt.

I build desktop applications using C#, C++, and Rust, focusing on performance, memory efficiency, and deep OS integration. I design scalable architectures including MVVM, MVC, MVP, and Clean Architecture, ensuring modular, maintainable, and testable codebases.

For UI development, I create rich and responsive interfaces using XAML (WPF, WinUI), Qt/QML, SwiftUI, and web-based stacks (React, TypeScript, HTML5, CSS3) within Electron and Tauri environments.

I integrate APIs and services using REST and GraphQL with tools like HttpClient, Axios, and Fetch API, and implement real-time features using WebSockets and SignalR. I handle authentication and security using JWT, OAuth2, OpenID Connect, and secure credential storage mechanisms such as Windows Credential Manager and macOS Keychain.

I work with embedded and local databases including SQLite, LiteDB, Realm, and LevelDB, as well as desktop clients for PostgreSQL and MySQL. I implement efficient data caching and offline-first capabilities.

I integrate system-level features such as file system operations, multithreading, background services, inter-process communication (IPC), and hardware interactions (USB, serial ports, Bluetooth). I also work with graphics and rendering technologies including OpenGL, DirectX, and Vulkan when needed.

For packaging and distribution, I build installers and manage releases using MSIX, ClickOnce, NSIS, Inno Setup, WiX Toolset, DMG, and AppImage, ensuring smooth installation and update experiences across platforms.

I manage CI/CD pipelines using GitHub Actions, GitLab CI, Jenkins, and Azure DevOps, automating build, test, packaging, and release workflows.

I ensure quality through testing frameworks such as NUnit, xUnit, MSTest, Google Test (gtest), Catch2, and Playwright for UI testing. I follow best practices in clean code, modular design, and Agile development.

With a strong foundation in C/C++ and .NET, I bring deep system-level expertise and a performance-first mindset, delivering reliable, secure, and production-ready desktop applications across platforms.

Skills & Expertise

.NET MAUIAmazon Web ServicesC Programming LanguageC#C++CSSElectron Desktop ApplicationsGraphqlGTKHTMLMySQLObjective-CPostgreSQLQmlQtReactRest ApiRust ProgrammingSQLiteSwiftSwiftUITypeScriptUWPWinformsWPF

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