iOS developer with firebase and voip experience

Hi

I am looking for prof ios app developer who can fix some issues in my app as quickly as possible.

the app was published but we still face some issues and looking to improve some features.

See the issues
https://docs.google.com/document/d/1R7jCQQrFij4cdY4JAcj8esXJOtwDm4UPTPJm0Euhhdw/edit?usp=sharing

thanks