OA, there are two questions, one median level one hard level, hard is about sliding window, need to finish in 3 hours, no original questions can be found in leetcode,
I applied online. I interviewed at Optiver (Singapore) in Jul 2026
Interview
First interview is with the Engineering Lead, physical 'Experience Review' interview, just go through items listed on resume. Next round is technical live coding round on hackerrank. Followed by System design and culture fit rounds.
I apply mid/senior software developer(Shanghai) on LinkedIn.
A few days later, a HR contact me on LinkedIn and we have a short phone chat the next day. She asked me why I want to move and go through my past working experiences.
She seems don't satisfy with my answer about why Optiver. About twenty minutes later she said I was not suitable for this role which requires a full understanding of the whole trading system, performance tuning, etc.
I'm really excited about the coming technical interviews. What a pity!
C++ Software Engineer applicants have rated the interview process at Optiver with 2.5 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 25% positive. To compare, the company-average is 49.1% positive. This is according to Glassdoor user ratings.
Candidates applying for C++ Software Engineer roles take an average of 4 days to get hired, when considering 4 user submitted interviews for this role. To compare, the hiring process at Optiver overall takes an average of 20 days.
Common stages of the interview process at Optiver as a C++ Software Engineer according to 4 Glassdoor interviews include:
Phone interview: 29%
Skills test: 29%
Background check: 14%
Personality test: 14%
One on one interview: 14%
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