Charles River Development Sr Software Engineer interview questions

Had a call with recruiter, then hiring manager. The hiring manager asked some technical questions, and then gave me an assignment to build an end to end functionality using Java, Spring and Angular. After that there was a final round with the hiring manager again, he checked the whole functionality and asked few follow up questions.

I gave interview for two positions. This is worst company and ppl I came across. 3.5 hour interview for first position I answered them every question and feedback came as didn't ask right questions. Second position was coding problem. I solved it and and interviewer said it looks good but HR later told me I didn't solved coding problem. Seriously what the hell. This company only wasted ppls time. There was no coordination among interviewers.