AI Website Customization

I need an experienced developer to make changes and customizations to an AI-generated website.

Key Tasks:
- Improve design
- Add functionalities like user authentication and third-party API integrations
- Update existing content
- Ensure smooth integrations with current systems

Ideal Skills and Experience:
- Strong background in web development
- Proficiency in implementing user authentication and API integrations
- Experience with design modifications on existing websites
- Familiarity with content management systems for seamless content updates

Please provide examples of similar work done. Thanks!