Rippling Interview Questions
Practice 77 real Rippling interview questions for 2026. Rippling interview questions for Software Engineer and Machine Learning Engineer roles emphasize coding and system design first — coding & algorithms and system design are heavily represented, followed by software engineering fundamentals, behavioral and leadership prompts, and occasional machine-learning tasks. This collection is built for interview preparation with real questions from actual interviews and detailed-solution style practice. Expect interviews to evaluate coding fluency, system thinking, and product-minded backend design: recurring Software Engineer themes include interval and sequence-merging algorithms (balance trackers, billing/interval merges), payroll and driver-pay systems, hotel and booking system designs, scalable expense-violation processing and flexible rules engines, news-feed and delivery-billing architectures, and focused backend component design plus algorithmic problem solving. Machine Learning Engineer questions are rare but lean toward algorithmic implementation with tests (stack and interval problems). To prepare, prioritize timed medium-to-hard algorithm practice, end-to-end implementations with tests, system-design diagram drills focused on billing/HR workflows, and clear STAR stories that show ownership and product judgment.

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"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Implement Food Delivery Billing
You are implementing billing logic for a food-delivery platform. Each completed delivery record contains: - order_id - driver_id - requested_at — when...
Build a Flexible Expense Rules Engine
You are building a rules engine for a corporate credit card product. Employees use company cards for business expenses, and managers define policies t...
Aggregate expenses by person, trip, and category
Problem You are given a list of expense records. Each record has: - employee_id (string) - trip_id (string) - category (string, e.g., MEAL, HOTEL, TRA...
Solve listed algorithm problems
The interview note referenced several independent coding problems. Solve each one independently. 1. Median of two sorted arrays You are given two...
Compute median of two sorted arrays
You are given two sorted arrays of integers nums1 and nums2. - nums1 has length m, nums2 has length n. - Both arrays are sorted in non-decreasing orde...
How would you scale rule evaluation?
You have an expense-policy rule engine that must scale to around 1,000,000 active rules and evaluate batches of about 1,000 expense records efficientl...
Design a music player with favorites cap
Implement an in-memory music player that supports: addSong(id, metadata), removeSong(id), play(id), pause(), next(), prev(), getNowPlaying(), queueSon...
Implement stack and interval algorithms with tests
Implement three coding tasks and design your own unit tests for each. 1) Validate Bracket String with a Stack - Input: a string s containing only '(',...
Design a Driver Payroll System
Design an in-memory payroll system for a food delivery company. Each driver has a unique driver_id and a fixed hourly_rate set when the driver is regi...
Compute peak busy dashers with overlaps
You are given delivery logs as (dasherId, startTime, endTime) with integer times, where endTime is exclusive. A single dasher may accept multiple orde...
Compute maximum simultaneous drivers
Given N driver online intervals [start_time, end_time) during a day, compute the maximum number of drivers simultaneously online at any moment. Handle...
Compute peak concurrent drivers in 24 hours
Given delivery intervals across multiple drivers, compute the maximum number of distinct drivers simultaneously active within the last 24 hours from a...
Compute total wages and partial-hour payments
You are given a list of workers. Each worker has: - id (string) - hourly_rate (non-negative number) - one work shift for a given day: start_time, end_...
Implement an article voting tracker
Coding: Article Voting Tracker Design and implement a data structure to track users’ votes (upvote/downvote) on articles. Operations Implement functio...
Build an Expense Policy Rule Engine
Implement a simplified expense-policy rule engine. An expense record contains: - amount: number - category: string - merchant: string - country: strin...
Track article votes and last three flips
Problem Design an in-memory data structure for voting on articles. Users can vote on an article with either: - Thumbs up - Thumbs down - No vote (user...
Compute concurrent online drivers
Question Given each driver’s chronologically sorted delivery records, build an algorithm that, for a timestamp t, returns how many distinct drivers we...