Rippling·Software Engineer·Technical Phone Screen
- Design and implement a rate limiter.
“The interviewer said AI was fair game, so I used it and cranked out a solution pretty fast.”
Large Enterprises
Most of these Rippling write-ups come from Software Engineers (126), then Machine Learning Engineers (2). The most reported rounds are the technical phone screen (60), the system design round (48), the hiring manager screen (5) and the onsite coding round (5).
128 interview notes · updated Sep 2026
“The interviewer said AI was fair game, so I used it and cranked out a solution pretty fast.”
“The scenario sounds manageable until you realize the policy rules interact in non-obvious ways.”
“I started with the basic read/write paths and got through the core subscription model okay.”
“This is basically the whole interview.”
“The scalability angle was where most of the conversation lived.”
“Two-part question and the parts are pretty different in difficulty.”
“I started with something like a `MetricsClient` class with methods for counters, gauges, and histograms.”
“This is the one that stung the most.”
“The naive approach is obvious, merge and find the middle, but they want logarithmic time so you have to do binary search on the partition.”
“My first instinct was to just filter and sum on each call, which works fine for small inputs but obviously falls apart at scale.”