Login-Enabled, User-Friendly Website Development

I'm in need of a seasoned web developer who can build a site with a simple yet efficient user accounts system. The site will cater to users needing to log in and out, so a basic login/logout system is required.

Key Requirements:
- Implementing a Basic Login/Logout System: The website needs a straightforward user accounts system that allows for basic login and logout processes.
- Prioritizing User Experience: The site should be designed with easy navigation and fast loading times in mind. An intuitive design is also a plus, but the primary focus should be on creating a site that is easy to get around and quick to load.

Ideal Skills:
- Proficient in creating secure and efficient user accounts systems.
- Strong understanding of UX principles, particularly around navigation and load times.
- Experience with delivering high-quality, functional websites.

Please ensure your portfolio showcases relevant examples, particularly sites with similar functionality.