How to make the Contingent Worker/Contractor to Employee Process More Efficient?

Summary: My organization is looking for a way to make the Contingent Worker/Contractor to Employee Process more efficient.

Currently when a Contingent Worker applies to an Employee position and we extend an offer and they accept the offer we follow the below process. We are hoping to find a way to make the process more efficient and somehow automate the Pending Worker Relationship step so that it doesn't have to manually be created. The Pending Worker Relationship is what triggers our onboarding and allows us to ensure that the employee's onboarding tasks are completed before their employee record is added.