Ask HN: service/webapp for hiring writers?

We're looking to streamline the hiring process for journalists in our company. Applicants currently take a time limited multiple choice test (customized questions and answers) and a writing test that is reviewed by our editors. The Admin panel shows the applicants' status and applicants are notified if they failed the multiple choice part.

I couldn't find a webapp or saas that could do something like this, but maybe one of you can point me in the right direction? Paying is fine.