The interview began with HR person. He sent me an invitation for applying in the company. I accepted the date of the technical interview. I got the offer from the company in the same week of the interview. The validation of my offer is one week. HR phone me about provide my notice period in my current company. When I'm sending the accepted offer email within the accepted time period of the offer, the company sent to me an email of cancel the offer. It was a bad situation I have ever seen in my career +4 years in android. Finally, I lost my job working as Team Lead Android Software Engineer. The process of hiring new candidates didn't have a good standard steps.