UI/UX Overhaul for Tendering Platform

I'm seeking a seasoned UI/UX designer to enhance the user interface of my existing tendering platform. The main goal of this project is to significantly improve usability across the platform.

Key Requirements:
- A comprehensive, user-friendly, corporate-style design for both desktop and mobile platforms.
- Experience in UI/UX design with a strong portfolio of corporate-style designs.
- Ability to create a design that improves usability without compromising on a professional appearance.
- Familiarity with responsive design principles to ensure seamless usability across devices.