Application Optimization and Enhancement - 16/08/2025 03:52 EDT

I need an experienced developer to optimize my current application built with GWT, Highcharts, and WebSocket. The project involves enhancing performance and user interface, as well as adding new functionalities.

Key Requirements:
- Optimize performance and improve user interface
- Develop drag-and-drop functionality for:
- Widgets
- Charts
- Tabs
- Create stock market charting features:
- Line charts
- Candlestick charts
- Bar charts

Ideal Skills and Experience:
- Core Java, JavaScript, CSS, and WebSocket expertise
- Extensive experience with the Highcharts library
- Ability to develop multi-tab applications
- Vector drawing skills

Please provide a portfolio demonstrating relevant projects and optimization work.