Hi,
1. Business partners created (BUP003-Employee)
2. Assigned qualifications to BP with PPPM
3. Created Requirement profile in MRS via T code /MRSS/REQM
The steps you have followed are correct additionally you need to have Qualification Catalog and qualification Matrix, and you can specify if you are using MRS qualification in basic setting in customizing.
Requirement profile you can see in the work order IW32 in requirement profile tab.
Get back if need more clarity.
Br.
Ravi