Offline-Online Hybrid App Development

I need an experienced app developer to transform the Base44 app into a hybrid offline-online application.

Requirements:
- Offline Functionality:
- Loading Profiles
- Creating Profiles
- Inputting Data
- Comparing Data
- Exporting Data

- Online Connectivity:
- Uploading shared profiles
- Posting to the community forum
- Downloading shared profiles

- Features should be accessible both online and offline:
- Creating Profiles
- Inputting Data
- Exporting Data

Ideal Skills:
- Proficiency in mobile app development
- Experience with offline data synchronization
- Knowledge of database management
- Strong problem-solving skills
- Familiarity with community forum integration

Please provide examples of similar projects and your approach to ensure seamless offline and online transitions.