Senior Retail Expert ERP NeXT Developer Required for Retail Project with POS and Customization (Only ERPnext)

Senior Retail Expert ERP NeXT Developer Required to complete a project based on detail requirement its a trading and POS need work flow and module level lots of customization wanting developer only who has pure work flow knowledge of retail work flow and POS work flow and very good accounting developer without business knowledge not required want to see successful implementation of erpnext which running retail plus enough level of cusotmizatio done i will need lots of core level customization new module implementation work flow level change on sale purchase expense screen i know exactly my requirement and there will be core level some changes

Dashboard Changes
ERP core changes
Strong python knowledge
Strong Server knowledge