Optiver

Finished the interview in about a week. Recruiters didn't rush me, gave me time for competing offers, and kept in touch regularly during the process to address concerns. Great experience.

They give HackerRanks and candidates may have to discuss decisions with onsite employees. The onsite interviews are mostly technical and go into a good level of detail. They reach out fairly quickly to give results.

3 technical interviews followed by a system design interview. Pretty challenging, a lot of networking concepts asked, had to implement rigorous OOP in Java. Responded within 3 days after each interview, sent a rejection next day after the final rou