I have total 7 yrs of experience in enterprise application development. I have hands on experience in AWS.
We need more details from you about this project,
1. which database you are using, how you are planning for migration?
2. whether the application will continue to run existing system also? if so how we should plan to divert customer traffic.
3. do we need on-demand server AWS features enble?
4. do we need to store assets (js, css, images, files, etc) in AWS S3?
5. do you have domain in place?
6. please specify server configuration you need.