we have a number of things we need to get done on an existing site and are looking for someone that knows squarespace really well and can take a formal approach to coding in there so we dont mess up a live site.
need to fix things like
google structured data
semantic use of heading tags
update some content and copy
update meta values
update [login to view URL] file
create google breadcrumb data
Please only reply if you specifically know how to hack on the items mentioned above. we do not need a designer or regular content html person. We need some very specific advanced skills for squarespace.