Custom CRM with Advanced Task Management

Looking for a developer to help me create a custom CRM management system to follow up with clients. Need to be able to add notes, select next follow up date, and assign leads to team members. It should work on Desktop and Mobile.

Please watch video here before placing a bid, so that you know exactly what you're bidding on
https://www.dropbox.com/scl/fo/o5w7j0l7ookcfe6hyz0fm/h?rlkey=dndxqjzvckfuz0p92yocgjrbf&dl=0