Migrate and Redesign CodeIgniter Script

I'm seeking an experienced developer to migrate my existing CodeIgniter 3 script to the latest CodeIgniter 4 version. Along with the migration, I need to implement additional menu features and completely redesign the user interface.

Key Requirements:
- Migrate the current CodeIgniter 3 script to CodeIgniter 4
- Implement dropdown menus, sidebar navigation, and search functionality within the menu
- Complete redesign of the user interface to enhance user experience
- Add new functionalities beyond the menu updates

Ideal Skills and Experience:
- Strong expertise in CodeIgniter 3 and 4
- Proven experience in UI/UX design and implementation
- Ability to develop and integrate new functionalities
- Excellent problem-solving skills and attention to detail

If you have the skills and experience to bring this project to life, I look forward to your proposal.