Hello, how are you?
I'm a senior web developer and I have rich experience in tracking, delivering platform development.
I'm familiar with push notification using Firebase, SMS using AWS SNS, email notification using AWS SES etc.
Also I can implement location tracking using Google Map, GPS etc.
I can work on your business timezone and keep good communication with you.
I will give you perfect result as you want with high satisfaction.
Let us discuss in detail via chat.
Best regards, Peng.