Rippling interview questions

Movie Rating

Determine (1) the user who rated the most distinct movies by aggregating MovieRating and breaking ties by the lexicographically smallest user name, and (2) the…

Companies: Rippling, Atlassian

Last reported Jun 2026

Design a Reservation System for Airbnb

Design a reservation system for Airbnb that allows users to search properties, make bookings, and manage reservations, with focus on API design and payment integration.

Companies: Rippling, Airbnb, Headway, Opendoor +1

Last reported Mar 2026

Design a Social Media Feed Generation System

Design a social media feed system that generates and populates personalized feeds for users on platforms like Twitter, Instagram, or Facebook.

Companies: Rippling, Amazon, Apple, Atlassian +5

Last reported Jul 2025

Beautiful Arrangement

Count the permutations of 1..n such that for every position i, either perm[i] is divisible by i or i is divisible by perm[i]. With n…

Companies: Rippling

Array · Backtracking · Bit Manipulation · Bitmask

Count Pairs of Connectable Servers in a Weighted Tree Network

For each node c in a weighted tree, count unordered pairs of distinct servers (a,b) (neither equal to c) such that the distances from c…

Companies: Rippling, NVIDIA

Array · Depth-First Search · Tree

Design Ride Sharing System

Companies: Rippling

Data Stream · Design · Hash Table · Queue

Longest Substring Of All Vowels in Order

Find the length of the longest contiguous substring made only of vowels that contains each of 'a','e','i','o','u' at least once and whose characters never decrease…

Companies: Rippling

Sliding Window · String

Maximum Nesting Depth of the Parentheses

Given a valid parentheses string, compute its maximum nesting depth — the largest number of parentheses that are open at the same time. (Equivalent to…

Companies: Rippling, Meta

Bracket Sequences · Stack · String

Median of Two Sorted Arrays

Find the median of two sorted arrays in O(log(m+n)) time by using binary search to partition the arrays so the left half contains the correct…

Companies: Rippling, Amazon, Bloomberg, eBay +5

Array · Binary Search · Divide and Conquer

Number of Islands

Count the number of islands (4-directionally connected components of '1's) in an m×n binary grid. This is a connected-components/flood-fill problem typically solved with…

Companies: Rippling, Amazon, Anduril, Apple +16

Array · Breadth-First Search · Depth-First Search · Matrix

Using a Robot to Print the Lexicographically Smallest String

Given a string s and an empty buffer t that acts like a stack (you can push s's first char onto t or pop t's…

Companies: Rippling, Bloomberg, Expedia

Greedy · Hash Table · Stack · String