Anonymous Activity-Based Messaging App Development

I'm seeking an experienced developer to create a messaging app available on iOS, Android, and Web platforms. The unique characteristic of this app is its anonymous, activity-based nature. - **User Roles**: The app will have multiple user roles - a coordinator, workers, and clients. Each user role needs different functionalities. - **Anonymity**: Communication between clients and workers should be anonymous. A client should be able to post a message and it should be delivered only to active workers. However, the worker's active status is managed anonymously. - **Notifications**: Workers should receive notifications about new messages in three ways - push notifications, emails, and in-app notifications. - **Attachments**: The app should also support file attachments so that users can share necessary documents. **Skills and Experience** - **App Development**: Proficiency in developing iOS, Android, and Web applications. - **Notification Systems**: Experience in integrating push, email, and in-app notifications. - **Anonymous Communication**: Expertise in implementing anonymous communication systems. - **File Attachment Support**: Experience with apps supporting various file types' attachment. Your experience and ideas to improve the app will make you the perfect fit for this project. I look forward to seeing your proposals.