The process started with a recruiter screen, followed by a technical phone interview focused on coding and problem-solving. After that, there were two rounds of technical interviews with senior engineers: one centered on system design and another on algorithms and data structures. The final round was a behavioral interview about teamwork, communication, and past project experience. Overall, the process was structured and professional, though somewhat slow to schedule.

They asked me to design a rate limiter that supports multiple APIs and handles different request quotas per user efficiently.