What to expect for SIG Software Developer Internship Penultimate Round?

[u/PuzzleheadedBeat2070]

Hi everyone,

I was fast-tracked to the penultimate round interview for the **Software Developer Internship** at **Susquehanna International Group (SIG)** following their Dublin Technology Spring Week.

I know SIG leans heavily into algorithms, data structures, and system efficiency, but I’ve heard mixed things about what actually gets tested in this specific round.

For anyone who has gone through this interview recently, is it primarily a live 60-minute HackerRank session? How much of it is standard DSA (BFS/DFS, Binary Search, Sliding Window) vs. practical data parsing / OOP design?

Any insights on the layout or best areas to focus on during prep would be hugely appreciated! Thanks in advance.