Web App Maintenance & UI Update

I need an expert in Java, JSP, and Bootstrap to help me maintain and update an existing web application. The updates primarily revolve around the user interface, which is built using Bootstrap, and the backend logic, which is handled by Java and JSP.

Skills and Experience:
- Proficient in Java and JSP
- Strong knowledge of Bootstrap
- Experience in web application maintenance
- Able to work with detailed UI designs

I have detailed designs for the updated user interface, so you won't need to create designs from scratch. I am looking for a freelancer who can efficiently implement these updates and ensure the web application runs smoothly.