Hello Sir/Mam,
Just read your posting for Ionic Developer to supporting and finishing Ionic 5 + Angular 12 application.
As I've 5+ year of experience as Full stack developer and my past successful project called Lotto Social and Sifa are hybrid applications developed with Ionic, with Firebase, Cloud Functions, Typescript, API integration, Bootstrap, CSS,SCSS, HTML. Which closely matches with your project.
Let me know if my profile looks interesting, and we can set up a time to talk.
Best regards,
Shivraj Sawant