Twilio Senior Software Developer interview questions

Interviewed for the L2 role on the Channels team. I did the online assessment (~3 hours), passed it, then was notified saying they filled the role and were no longer considering me. No referral to another role either. Long story short, don't let this awful company waste your time. 2 algo problems (listed below), 1 easy SQL problem, 1 easy API data retrieval problem, and 2 trivial multiple choice problems.

I applied on the website (redirected from LinkedIn) and after a few days I was contacted by the recruitment team and an initial short call was arranged. After this call, I was given a HackerRank test to complete, which consisted of 3 multiple choice questions and 2 coding exercises. My technical assessment was reviewed and I was told that I was approved and the next interviews were scheduled. I then had 3 interviews together (but on different days with different interviewers): Coding, System Design and Behavioural. Note that one interview doesn't eliminate you from the process, but a final result is expected as a combination of all the interviews. A few days after the interviews, I had another call with the recruitment team to get the final feedback, and in my case, unfortunately, the recruiter told me that they wouldn't be proceeding with an offer for me. I would just like to add that everyone was very friendly throughout the process.