Received a call from HR to schedule a programming exercise with a director of the team in the next few days.

Then I attended the interview at the specified time and waited for an hour and thirty minutes and did not receive any call so I emailed the HR directly and then got a reply a few hours later saying the interviewer did not feel well so asked to reschedule the meeting. I found this totally ridiculous of how they handle the incidents and just let the interviewee wait for such a long period of time without notifying the candidate ahead of time. This is absurd for such a large organisation and I feel the responsibility is on the interviewer too and I even suspect feeling unwell was simply an excuse.

So I rescheduled the interview for the next day and finally received a call asking to implement an algorithm in Java which is not too difficult. I tried to explain my thought process and the steps I wanted to take before the implementation and it seems the interviewer did not agree and asked me to do it directly which I found to be impolite and different from other interviews I had. Then asked me a couple of questions about TDD and asked to write test cases and finally finished the exercise.

At the end of the interview was the usual Q&A section and I sensed the interviewer just wanted to leave without taking my questions seriously.

This was a negative experience about the interview organised by the interviewer and HR.

How familiar are you with JUnit?