Quant Developer

Builds the trading systems, with interviews that start with coding.

The interview process

  1. 1Coding testOnline · typically 60 to 90 minTwo or three programming tasks with hidden test cases.
  2. 2Live codingVideo · typically 1 to 2 screensWrite and explain code while the interviewer watches.
  3. 3SuperdayOn site or video · typically 3 to 5 interviewsAlgorithms, system design and a behavioral round; at fast trading firms also C++ and latency.

Rounds typically 4 to 7 interviews after the testTotal typically 3 to 8 weeks

Difficulty4/5

My difficulty rating, based on public candidate reports, for the firms where this role is most common. 1 is easy, 5 is hard.

Question categories

Sorted by how often they come up for this role, my own estimate from public reports.