I applied online. I interviewed at Optiver in Mar 2025
Interview
online assessment: 2 coding questions(2 hrs), 20 multiple choices(20 mins), and Zap-N(30~60mins)
Coding questions are medium OOP questions. Multiple choices include basic computer science knowledge and some operating system. Zap-N are 10 little games (you can find some practices online), but basically testing your reaction with math.
I applied online. I interviewed at Optiver in Feb 2026
Interview
As soon as my CV reached them, I had 7 days to complete a HackerRank and 2 more tests. It took them from Monday morning (when I submitted the coding test) to Wednesday evening to reply.
Interview questions [1]
Question 1
Was a Hacker Rank average but difficult, then a CS questions in multiple choice and finally some kind of minigames.
After I applied, I received an online assessment shortly. It was hacker-rank styled. I had only 2 choices of language - C++ and Java. A bit difficult than average, but doable with a lot of practice.
The original assessments consisted of:
- A coding test (1 hard question) which takes approx. 75 minutes
- A coding knowledge quiz
- Zap-N, a set of short neuro assessment games
Interview questions [1]
Question 1
The coding test question was very difficult. Required a great understanding of data structures in programming and problem solving