There's 3 stages, once you pass the resume check. After the first interview, you need to submit writing prompts and only have a few days to do that. Once you pass that stage, I believe there are a few more rounds of interviews.
Technical Writer Intern applicants have rated the interview process at Splunk with 2 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 40.1% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
