Full stack developer to set up big commerce site

Looking to set up a new big commerce site om big commerce and intergrate existing softwares for all business operations to function smooth
May require some coding to have rolling delivery windows at check out for local delivery and scheduling

I have workflow docs, and a feature list,

Most connectors are pre-built
Services to connect include
Odoo
Hubspot
Quickbooks desktop
Cloud talk
Onfleet