I am Odoo Developer with 5 years exp . in this time i have done lots of customisation in odoo
i started to work from odoo version 7 and now currently i am working in odoo 12.
i have the knowledge of odoo version 7,8,9,10,11,12
here i am mentioning the list of odoo apps in which i have worked on
1-sales
2-purchase
3-inventory
4-accounting
5-website
6-human resource