Looking for someone with good Odoo 6.1 experience

We are working on a project migrating odoo 6.1 to odoo 13. Our team knows the latest versions odoo well but we need guidance related to odoo 6.1 very often. So we are looking for Developer who worked on odoo 6.1 and knows it well. There will be some maintenance work related to odoo 6.1 till we migrate it to latest version. It will be a long time project and if we found person to be good fit to our team we can also offer full time position.