Chainstack Software Engineer interview questions

3 stages: 1st 30 min with recruiter, 2nd 45 min with Tech Lead, 3rd and last 45 min with CTO. 1st round was the usual talking, the recruiters English level wasn't the best but it was fine. The second was a technical interview, but theoretical only, I felt like it didn't go very well and that I didn't answer the questions that well but I still got through to the last stage, which was a mix of both, asking about my experience and some technical questions. I got some red flags from all stages but decided to keep going. The last stage interview was over 2 weeks ago and no feedback was given