Rackspace Technology Senior Software Developer interview questions

4 Rounds of interview happened. 1: technical round 1 2: technical round 2 3: managerial round 4: HR round Recieved offer letter after3 weeks on all rounds. the interview process was smooth but waited a lot for offer letter

My first "interview" was to submit a sample Rails application using given user stories. After the hiring team reviewed all the submissions, several were shortlisted for a face to face interview. Since I'm not local to the San Antonio area, mine was over Skype. This interview was with the hiring manager and another team member; it was pleasant and enjoyable. They made me feel at ease right away. There were some basic Ruby questions followed by some specific questions about the sample application I submitted.