Website Revamp with New UI/UX Design

I need a complete redesign of my current website with a new UI/UX but keeping all functionalities and links to the same database. The new design should align with the provided Figma prototype (but with old website data and sections and with new design) in terms of colors and modern aesthetics, with an emphasis on ease of navigation and responsiveness.
old web site:
http://34.166.121.10/Marsad/Portal/Pages/Welcome
figma design:
https://www.figma.com/proto/MuJOqGtDcdtM2kqN7kOjOV/AlBaha-BSO-UI-Design?page-id=84%3A1486&node-id=149-2579&node-type=canvas&viewport=238%2C173%2C0.02&t=rYA2znUGosArvFcq-1&scaling=scale-down&content-scaling=fixed&starting-point-node-id=149%3A2579&show-proto-sidebar=1

Key Requirements:
- All components from the old site must be retained and linked to the same DB, but with a new identity.
- The design must be compatible with the Figma design and implemented using .NET framework 8, SQL server DB, JavaScript, and AJAX (in search).
- Two language versions are required: Arabic and English.
- All website functionalities need to remain unchanged, including user authentication, data reporting, real-time updates, and all existing links and data. Some links should be editable from the control panel to open external links ; So you need to use same control panel (I Well provide old source code).
- Integration of social media into the new version.
- You are responsible for publish website on our server (on Google cloud)
- You can give guides to SEO

Ideal Skills:
- Strong UI/UX design capabilities.
- Extensive web development experience, particularly with .NET framework 8, JavaScript, and AJAX.
- Proven track record of delivering projects within tight deadlines.
- Experience with creating bilingual websites.

Please note that time is of the essence, and I need a strong team that can deliver a high-quality site quickly.