Develop Backend Panel in JAVA and work on APIs

We have a Android Chat app developed in Kotlin and on asterisk. We need a backend panel with following features in it... Panel Requirements 1 Profile Pic moderation- cancellation/approval provision 2 Redemption- Status change provision (Success/Failure/Processing) 3 Purchase history: Mobile number wise and date wise data transaction with Amount/Mode and status. Only View purpose 4 Notification- Push notification provision to customers 5 "Create 3 different users of Panel: 1. Admin A/c, having all right 2. Executive A/c, Having on Profile Pic moderation rights/ Notification provision rights" Apart from this, we need a guy who can also work on JAVA APIs as well. So that we can create APIs to get the data in App from database. This work need to be done within 5 days