Flutter-based Multilingual Wedding Invitation SaaS

I'm looking for a professional developer to create a responsive, feature-rich SaaS website using Flutter. This platform will be used to compose wedding invitations with a variety of core functionalities:

- Invitation Templates: The platform should come with a wide range of customizable invitation templates.
- RSVP Management: An integrated system for managing guest responses.
- Guest List Management: A user-friendly interface for handling the wedding guest list.
- Custom Section Creation: Users should be able to personalize their invitations with custom sections.
- Multimedia Uploads: The ability to upload images and videos.
- Font Customization: Using Google fonts for unique typography.
- Multilingual Support: All invitations can be designed in multiple languages.

Key design elements for the invitation templates should include:
- Custom Section Creation: Flexibility for users to add personal touches.
- Image and Video Uploads: Ability to include multimedia content.
- Font Customization: Wide range of font options for personalization.

The ideal freelancer for this project should have extensive experience in developing SaaS applications using Flutter. A strong portfolio showcasing previous work on responsive websites will be highly regarded. Understanding of implementing RSVP management and guest list management systems will be a plus.

In your proposal, please highlight your experience with similar projects and provide examples of your work.