4 rounds interview, HR --> system design "homework" --> PHP/Symphony related questions and general architecture questions --> interview around your system design "homework" --> CTO interview
After the 3rd round of interview, after the interviewer left me a good feedback at the end, saying I did a good job, given I answered effortlessly all the questioned... I received a generic rejection email. Which seems to be in sync with what others have been posting on here. ("interview went well, got declined")
Also, keep in mind the salaries are kind of bad, they even tell you so during the HR interview, they argue well it's a remote position so you will suck it up kind of thing. So maybe they hired from another country for cheap instead of me and filled up the position...