for your task > it will be fine with me as i have done alot of upgrades before and i have experience over odoo versions in additional to odoo 11
and for my cover as the following >>> I'm Umar abdulaziz from Egypt im an odoo developer i have 2+ year Experience in odoo i worked in alot of projects, i have experience in odoo v 8 , 9 , 10, 11 in both community and enterprise with python programming , xml, js , css, html Implement new features , Maintain and customize Odoo addons, Create and customize reports, Create new functional business modules, Setup, maintain and monitor Odoo servers, Participate in the design, coding, and testing Odoo modules, Write SQL Scripts
Regards