Vestmark interview questions

Phone screen with HR, phone interview with Hiring Manager, phone interview with architect, face-to-face with 4 team members, face-to-face with hiring manager and a test case. This is going to sound a lot like a previous comment. I had a pleasant experience with each person I met with. However, one seemed particularly focused on gathering intelligence on one of my prior employers. No problem for me, but I was irked when he corrected me on something I was not wrong on. I really enjoyed meeting the interviewers and had pleasant experiences with each, but the one thing I'll remember about this company years from now is their HR problems. I don't know of they have email issues or if it's personnel related, but all my communications with the company were problematic. I would be asked something by HR via email, replay 5 minutes later and then get a testy email 2 days later asking why I wasn't replying. This happened multiple times so I finally got the contact's phone number and she started calling instead of emailing. But after my 5th round of interviewing I never heard back from HR, despite several emails and voice messages. For that reason alone I'm giving it a negative experience rating. Again, I had a really positive experience with all the people I met. The final round of interviewing was an exercise where you have 20 minutes to come up with a high level plan to build out a solution to a client functionality request. Obviously it is an impossible task, but they just want to see how you try to tackle it.

I applied online and was contacted by the HR. I was told that I will be informed about the result even if it goes either way. I have never heard back from the HR. He never responded to my follow up emails as well. Very unprofessional