Seagate Technology Sr. Engineer interview questions

Very unprofessional…! I applied online. The process took 2 months in total. 3 steps. 40 min preliminary interview with the hiring manager. Then a technical presentation based on my research and 3 panel interviews. Finally one hour interview with the hiring manager again. Then I was told that I will be contacted within a week. But they didn’t care to inform. I sent follow up emails twice. One after 15 days, another after 21 day. They never replied. I was totally ghosted. Such an unprofessional attitude from someone at a director level is just unacceptable.