Java GUI Developer for Cryptography App

I'm in need of a developer skilled in Java, particularly as it relates to building engaging and intermediate-level Graphical User Interfaces (GUIs). The core functionality that must be incorporated is the ability to select and display the count of encrypted and decrypted files.

Key Responsibilities:
- Develop a Graphical UI for a Java application
- Make use of dynamic elements to increase user engagement
- Incorporate a function to select files within the application
- Visually display a count of encrypted and decrypted files

Ideal Skills:
- Extensive experience in Java
- Solid understanding and experience in GUI design and development
- Previous work with encryption/decryption functionality is a bonus.