First time is codility test. it's not difficult. second time is skype interview. They asked me to introduce myself and ask some programming questions. like what different between hashtable and hashmap ...etc after first interview. They told me I m lack of skills but other group loves to talk with me. Therefore, we arranged another day to interview. But They didn't appear in the day we arranged and they didn't notify me in advance. I was waiting in front of desk over 40 mins. I think It's very not polite. After that, they just sent email and said: "the position I applied just filled so they need to cancel my second interview." It's a very bad experience in my first foreign interview.