ServiceTitan Senior Software Engineer interview questions

Interview process consisted of one HR phone screening followed by three technical rounds. The technical rounds were: Pair coding: implement a custom data structure. Pair coding: parallel processing and async programming. System design: data processing and AI-related architecture. The first two technical rounds were conducted by one interviewer each. The exercises were medium difficulty or lower, and the interviewers were fair and clear. The third round was supposed to have two interviewers, but only one joined the call. This felt awkward because the expectation had been set that two people would be present. I had also recently seen another Glassdoor review mentioning a similar situation, where one interviewer left during the interview, so this gave me the impression that something was off. I asked at the end why the second interviewer had not joined, but the answer was not very convincing and no clear reason was provided. It would have been better if this had been explained at the beginning of the interview. To be fair, I was not very familiar with the topic in the third round, and I do not think I performed well there. However, the missing interviewer made the experience feel disorganized and created the impression that the process may not have been fully structured or transparent.

Interview included 4 rounds, 1 with recruiter and 3 technical. The first technical round was 1.5h pair programming session. The task was to implement a custom dictionary data structure. The complexity is medium or even below. The second round also was 1.5h pair programming session and included parallel data processing using async/ await. The complexity was medium as well. The third round was system design interview. The task was average as well, implement a system like Team City. On that round were present a Staff Dev and a Manager. The interview was 1.5h as well. In the very beginning the manager who were expected to lead the interview outlined the agenda: 1h of system design, 20 minutes for behavioral questions and 10 minutes for my questions. The interview started, they provided the task and I started asking questions about requirements, etc. and then designing. After approximately 10 minutes the manager disappeared. Just turned off his camera and microphone and I haven't seen him since. The staff dev didn't comment ghosting of his colleague and continued interviewing me. In fact, we were doing design all the session without any behavioral questions. In the end of the interview he said that I would receive the feedback by tomorrow evening. After 2 weeks the recruiter contacted me and said that they hired another person for that role.