EXPERT WINDOWS SOFTWARE DEVELOPER — AUTOMATION & LICENSE MANAGEMENT SYSTEM

I am looking for an experienced software developer to build a private Windows desktop application that combines workflow automation with a secure software license management system. ## KEY REQUIREMENTS - Modern Windows desktop application with a user-friendly interface. - Secure license management, including 1/3/5/7/30-day validity, offline verification, activation, expiration, and device limits. - Backend API and database for user and license management. - Workflow automation with task monitoring, error handling, retries, and recovery. - Separate owner/admin controls and a simplified user interface. - Secure, modular, maintainable, and well-tested software. - Complete source code, documentation, and deployment instructions. # REQUIRED TECHNICAL SKILLS - **C# / .NET Desktop Development** - **WPF and MVVM Architecture** - **Software Architecture and Modular Design** - **REST API / Backend Development** - **Database Design and Integration** - **Software Licensing and License Validation** - **Authentication and Application Security** - **Workflow Automation and State Management** - **Asynchronous Programming and Concurrency** - **Error Handling, Retry Logic, and Recovery** - **Unit Testing and Integration Testing** - **Git and Source Code Management** # REQUIRED EXPERIENCE - Proven experience developing and delivering Windows desktop applications. - Practical experience implementing software licensing, activation, expiration, and offline license verification. - Experience building backend APIs and integrating databases. - Experience designing reliable automation workflows with session/task management. - Strong understanding of security, failure recovery, testing, and maintainable code. - Ability to evaluate technical requirements, identify risks, and justify architectural decisions. - Experience delivering complete projects with source code, documentation, and deployment instructions.