I applied online. The process took 3 weeks. I interviewed at Optiver (Sydney) in Sept 2019
Interview
1. Coding test, could use Java, C++ or C#. Not hard.
2. Phone behaviour interview, questions related to personal experiences, company understanding.
3. Phone tech interview, mostly questions about Hash functions.
4. Onsite tech + behaviour interview, tech one is about how to build a reliable protocol using TCP.
Interview questions [1]
Question 1
Have you ever successfully convince someone while doing a group project, how do you achieve that?
A bit anxiety inducing, there were two developers observing and asking questions. Real-time problem solving required, conducted on Hacker Rank virtually, video and mic enabled - quite nervewracking to say the least
I had one round, which was an online HackerRank test. I wasn’t able to pass all the test cases, and as a result, I did not progress to the next stage of the process.
A lot of interviews. Started off with a call, then some online tests. Then a technical interview. Then a live coding interview along with a architecture interview. Last step would have been final day interview but I did not get that far.
Interview questions [1]
Question 1
How many bits do you need to store a number up to X. And how can you represent that.