Can we do bulk update to profile attributes based on user name or any such other attributes?

Hello,
Can we do bulk update to profile attributes based on user name or any such other attributes?
So we have millions of users in okta but want to set the value of a custom attribute as isEmployee=true for users who have company email (employee@companyname.com). Is there a way to do a bulk update the millions of profile to search for the particular user name patter or a param and update the isEmployee attribute value?
Thanks
Vinny

Hey @vinnyj! Good question… Does the isEmployee attribute already exist on user profiles or does that need to be added as well?

Thanks for getting back. This is a custom attribute that is already added to the user profiles profile but it is set to default as false. I am looking to update value to true for a selected set of profiles.