I want to hire a app developer

Things You Have To do : 1: i have created a browser so what is want from you is help me to set vpn service in app. i.e whem i click on icon the vpn service should start coonect to any free server . 2: i want my browser to run in background means i want foreground service: for eg: im playing youtube songs if i close my browser the songs should be running in background