I had to take a written translation test to become a standard translator and a pro translator. It was a fairly short test with a time limit. The test would then be evaluated with feedback provided.

Completed the Pro test. Passed test, although was challenging. There were no interviews, just the test. It probably took me about an hour to do the test because the example was specifically meant to be challenging with clear "traps". The key is to not do a literal translation and to instead try to interpret the meaning and communicate it as a native would in the target language.