KAYAK Java Software Engineer interview questions

I started by a take-home coding project (Robot, Recursive method that prints (1,2,3,4,5), another one that counts (5,4,3,2,1). the time will be one week. After that if they liked your solution you will have an interview with the hiring manager. (behavior questions , basic java OOP, java 8 features). The third round is about 3h- 1h with the hiring manager( OOP questions again and java 8 specific features ) codepan for 30mins : java 8 questions Collections, Hashset, Equals, haschcode, and Generics using methods which creates a list). then one hour with the team lead most of it behavior questions. and 15 mins codepan easy leetcode question). I was expected to have another interview with the architect but I was ghosted for one week and then was informed they decided to move with another candidate. Very Unprofessional!!!! they are kind of gave me an idea of how the work is done inside the company.

1. A recruiter contacted me on linkedin for this position in the company. She couldnt tell me details about the position (duties, technologies, etc). There was a skype call. 2. Someone from Kayak call me to know me better but couldnt tell me details about the position. 3. I have to develope at home a program consitin about a robot which moves in a 2D matrix by using coordinates as input. 4. In site interview. They wanted to do 3 different interviews with 3 different develoopers. 4.1 First interview was with a girl who told me was working in frontend. When I asked about the details of the position she told me with this words: "Well, i can describe you something but if you ask someone else will tell you something completely different from it". 4.1.1 First question was about software design. Her communication skills were really low and couldnt explain properly what she wanted (check most difficult questions below for details) so i made different designs but no one was 100% right. After that she explained to me in a very arrogant way the solution. I was a bit shocked that someone working in front end had that expertise in software design. A few days later i found out that she was using the same example, words and explanations found in the book "Head First Design Patterns". So she practically put me the example of the first design patter described in that book: "Strategy pattern". 4.2.2 After that she asked me if I remember the different sorting algorithms you can use to sort the elements of an array. I told her I had just learnt and used that on my first year at the university, 15 years ago, and never more (someone tells me when you use that in Java). I told her (because it was a Java interview) I could use of course the Java tools for that (Comparator/Comparable, Collections.sort() etc...) but still she insisted me to do some algorithm on the blackboard but I was already pissed and refused. 4.2 Second interview: even if they had already decided they didnt want me a guy came to test my Java skills with a test (quite simple) and asked me some theory about generics, hashmaps, inheritance etc... He had some sql questions as well and I answered everything fine. He told me they would call me for the third interview. The day after they told me they wouldn't offer me anything. I found the whole process just too much. I have 3 years of Java experience and applied for a non senior position with an average salary (40K) so 2 interviews + test + 3 separate technical interviews is just too much. They are one of the I-wanna-be-so-cool-as-Facebook company who want the top of the top but cannot even show what they are looking for or offering. The only thing all of them could tell me about the job was that you can have a mcbook air plus 2 retinas displays and that you travel twice to the US.