Confluent Solutions Engineer interview questions

I was contacted by a Confluent recruiter, and after exchanging a few emails, we set an interview for the next day. I waited for 10 minutes before sending a email to the recruiter asking if the call was still on. Got a call 40 minutes after that and did a 15 minutes interview with basic questions about my resume. After the interview I was supposed to get information about the position and the company/products. I had to send another email a week after to that recruiter again, to get the information he promised me to send. Then I was set up for an interview with a local senior SE, but nothing has been discussed about the topic of that interview. Based on what that recruiter sent me, I prepared that meeting the best I could learning about the company and the products. I was a bit surprised when the senior SE told me it's going to be a technical interview, that will cover networking, cloud architecture, APIs, storage and server architecture. After that interview no news from Confluent for the past 2 weeks until I decided to sent an email, one more time, to check on my candidacy status. After which I got a copy/paste of rejection email template, with no detailed explanations. No need to say that the whole job interview experience was below average and I can't say I was impressed by the company recruitment process.