I applied through an employee referral. The process took 2 weeks.

Phone screen and then technical assessment, the phone screen was straightforward but then you get sent an assessment with LeetCode style questions. In my opinion these questions weren't particularly relevant to how the day to day of the job could be and gave me no indication of what would actually be done on the job. The person who interviewed me on the phone was very kind and knowledgeable, however the assessment could be done differently going forward in my opinion.

LeetCode style questions, don't remember the exact questions on CodeSignal