Need website developer to enhance my site

I'm seeking an experienced website developer to enhance my site with a professional, modern and corporate design. The goal is to make the website more attractive and ensure it functions smoothly.

Key tasks include:
- Design Improvements: Update the site to a modern, professional, and corporate look.
- Feature Enhancements:
- Add or improve the contact form
- Implement a user login system
- Improve search functionality
- Create a news/feed section for connectivity and postings
- Develop a messaging system

- Fix Existing Issues:
- Resolve visual layout issues
- Make admin fixes, such as uploading CSV files, and others

Ideal skills and experience:
- Proficiency in web development and design
- Strong understanding of user interface (UI) and user experience (UX) principles
- Experience with backend functionalities, especially in managing user logins and data uploads
- Ability to troubleshoot and resolve visual and functional issues effectively

Please provide examples of previous work and ensure your bids are within budget.