Sales and Inventory Desktop App

I'm looking for a skilled developer to create a Windows desktop application for both sales and inventory management.

Key features should include:
- User-friendly interface for tracking sales and managing inventory.
- Real-time updates and synchronization.
- Detailed reporting and analytics.
- Secure user authentication and data protection.

Ideal skills and experience:
- Proficiency in developing Windows desktop applications.
- Experience with sales and inventory management systems.
- Strong background in database management.
- Good UI/UX design skills.

Please provide a portfolio of similar work.