SIG
Signet Jewelers Limited
stock NYSE

SIG has an office in Dublin in case that's your thing.

SIG's online assessment is significantly harder than what you'd see for a typical software engineering role. Expect LeetCode hard or even harder problems that are heavily skewed towards probability, combinatorics, brain teasers, and game theory, just disguised as coding questions. You need to be incredibly fast and accurate, as the score threshold is very high. This test is a massive filter, so a huge number of applicants who get it will not pass, which is completely normal for a top quant trading firm. Don't underestimate it, it is designed to be extremely challenging and to see how you perform under immense pressure with unfamiliar problems.

Your success will depend less on memorizing specific algorithms and more on your raw problem-solving speed and mathematical intuition. You need to identify the underlying math or logic puzzle quickly and implement a correct solution without hesitation. The best way to prepare is to solve a wide variety of difficult, math-based competitive programming problems, not just standard data structure questions. The point is to demonstrate you can think critically and efficiently, which is the core of the job. Ultimately, performing well in these assessments is about showing how you think, and my team and I actually built an [interview helper](http://interviews.chat) that gives candidates the confidence to clearly walk through their complex logic.

SIG OA

SIG Codesignal OA

SIG Quant Strategy Developer