LHP Engineering Solutions Embedded Controls Engineer interview questions

Initially referred by an Employee.. In the first phase of the interview process.. I got a call from HR and I was excited and told him everything about myself and me being proactive.. I clearly told him what I was looking for and clearly explained him about each and every project. He said he would arrange for a phone interview and he arranged that in a week however, he took one more formal interview on phone. Then he arranged for a client interview. Client interview was on phone... and they explained what they want clearly... they said they are looking for software engineer who can work on Matlab/Simulink/RTWEC. They said the work will be on developing the software for the HHP Natural Gas Engines ECM's. Asked me some specific questions on Engine Controls ECM's and some questions in my resume and after answering every question they said that I am the perfect fit for the job. After 5 days I got a call from HR and they said I was selected.