I applied on their website in November. Had no response until February, when a recruiter contacted me, sending me a link to a Codility test (which was quite difficult). A week after I submitted the test, the recruiter called me to let me know that I passed the test and that they are inviting me to an onsite interview. The interview was difficult, but straightforward. The interviewer was very nice, and gave me hints when I felt that I was stuck.