I wish I could remember who, but there is a company out there who conducts tech interviews to create a pool of candidates for their customers. Pretty sure there was a post here about it, but it's lost in my ocean of unread favorites.
Triplebyte is the company.
You still interview with the end companies, but technical interviews aren’t given.
I personally think outsourcing hiring is the worst idea ever, and completely lose confidence in companies that do.