J'ai postulé via la recommandation d'un employé. Le processus a pris 3 semaines. J'ai passé un entretien chez Citadel Securities en sept. 2025
Entretien
Two phone interviews, and then a potential final round. The first phone was a technical with some math game theory/markov chain problem, and the second phone was with the head of research, where he asked more finance-focused questions.
Questions d'entretien [1]
Question 1
First round: Randomly flipping coin to go up or down 1 point, probability to lose all your points given you start at n coins
