First round is 3-hour codility test. I got 94%, and got rejection said, "we have chosen another candidate whose skills, background, and education are more closely matched to this role." The worst experience I ever met. If you have another candidate more fit this role, recruiter should NOT send me the test, wasted me 3 hours. Very unprofessional recruiter.

The interview took two parts - a paper exam of 7 questions and followed by interview with 2 engineers. The paper exam is limited to 50 mins. The engineers interview asked the background first, including questions regarding the resume and they asked questions about the paper exam.