Need Mobile app developer for app maintenance

Currently the app is already coded. I need someone is who can help manage the app during the beta phase and when it goes live in to the market. I need someone who can fix bugs and do small changes. I Currently the app is already coded. I need someone is who can help manage the app during the beta phase and when it goes live in to the market. I need someone who can fix bugs and do small changes. I need help monitoring the data base so users can have a smooth transition. I need someone who is willing to communicate on the...