As you are Looking for an experienced mobile developer for two 3-6 month mobile projects then we can go with hourly rate for the work
Relevant Skills and Experience
great experience in mobile development and I will work in Android(JAVA),IOS(C++,Swift),PHP,Mysql,Restful,Retrofit,Google map ,ALl payment method, Material design etc.I will provide the latest version.
Proposed Milestones
$375 USD - 1
$375 USD - 2
Let me know your availability so that we can give it a kick start.