CallFire Senior PHP Developer interview questions

It was a pretty ridiculous process. Entire process took well over a month. Applied then scheduled an initial screening with the hr. Went well so scheduled a video interview with a Senior Developer. Lot of questions and an algorithm question. Although I am not very good with algorithm questions I happen to figure it out so did that too. Lasted an hour. After a week I was scheduled another video interview this time with a Senior Developer in Ukraine. Close to 40 questions technical questions all about PHP, if you good at PHP you should be fine could be tricky at times. This one lasted 1:30. I felt like I did pretty good so yes I guess got an email requesting an on-site interview. Great I thought at first then when I saw the email; I was like whaaat... it will be 5 hours long (1 hour break). All in all I was going to see 8 people, all engineers and managers. I thought I passed the Technical part of the process and it was going to be for cultural fit etc. but no it was very very Technical. Every person that came in have a printed out papers with questions on them. I was pretty annoyed with this. After the first 4, I was supposed to get a break but nooo. I was put in the CTO’s office. And talked with him for an hour. They will buy you lunch but won’t give you any time to eat. I was able to eat half the sandwich in 5 min before they put me in his office. Anyhow after I went back to the interview room and meet with 4 other engineers 2 at a time. After a lot of question, last one was another brain-teaser/algorithm question. I was pretty angry and annoyed at this point. I was hungry, tired and pretty pissed off. All I wanted was to go home. Managers seems to have attitude by the way, they won’t smile much. I really don’t think who they think they are; google fb tweet?? They will buy you lunch but won’t give you anytime to eat. You won’t be given a 5 min down time. I took a time off from work to be there so I lost one vacation day, I took two extended lunch breaks to talk to them for the video interviews. All in all I probably spent 2 days for absolutely nothing. I didn’t follow up with them after because I really didn’t care. Since I am pretty easy to read, towards the end they probably saw it in my eyes.