Fragen im Vorstellungsgespräch für Beschäftigung als Data Warehouse ETL Developer bei Revantage

After screen call i was invited to an in person interview. Before interview i had active communication with several HR personnel regarding some interview details. Communication was very professional and clear. After arriving to the company i was greeted by the person at the front desk followed by HR representative. Again very polite and professional. Interview was conducted in meeting room where i met separately with 3 individuals. Each polite and very professional. Interview lasted about 30 minutes with each person. After interview i met with HR one last time and was debriefed. I had really pleasant experience and everybody was polite and professional. However that's where the professionalism ended. Few days after my interview i decided to check-in on the progress. I sent an email to HR person i was in contact before interview but i did not receive any reply. After additional week i decided to send another follow up. Again no response. To this day i have not received any email nor a phone call with any information. In my opinion this reflect very poorly about the company. I wouldn't mind getting a customary phone call with a generic message that the company decided to pursue with other candidates. But not to receive anything is simply unacceptable.