Hello sir or madam,
I think I am very capable of task you requested. I do have many projects in the past.
Some of my personal apps are on Google Play Store, as can be seen on my profile.
If needed, your application could be uploaded on my Play Store profile.
Do you have source code that needs to be changed, or do you need app from scratch?
In any case, thank you for reading this.
Sincerely,
Mario.