Paymentus Software Developer interview questions

Step 1) 30 min screening call with HR. Step 2) 30 min call with Hiring Manager Step 3) 60 min call with Hiring Manager plus Director First of all the entire interview process was not very transparent. I was not provided with the format of the interview and didn't know what to expect going into it. I received no updates from the company after step 3. After 5-6 business days I wrote a follow up email to HR. The HR representative did not reply to my email. Extremely unprofessional, and complete lack of transparency. My interviewers didn't even bother turning their webcam on while speaking to me in stage 3. Ridiculous.

First round over the phone with HR, talked about past experience, technologies used, salary expectation etc. Then a phone interview with hiring manager, again talked about past experience & technologies used. Final round was onsite with 2 interviewers. Asked about java & database basics like what is interface, generics, how indexing works in database, also a white board coding (the same buzz fizz question another reviewer mentioned). Told me hr would get back to me within 3-4 business days with decision. Not a peep since. I got a feeling the company was very unorganized with subpar facility. More importantly, the technology they use is a little behind.