Jet Analytics Position interview questions

The process involved 2 Phone Screens : With Recruiter & Hiring Manager, followed by onsite interview. I interviewed onsite 4 months ago, the process went fairly well. However, the most negative thing about this is that I never heard back from them. I followed up couple of times since then, and received no response to those follow-up emails as well. This is extremely unprofessional from a company which claims that they care about the employees and is transparent in their processes.