Google Interview Questions
Practice 461 real Google interview questions for 2026 — Google interview questions that cover Coding & Algorithms, Behavioral & Leadership, Analytics & Experimentation, Machine Learning, and Statistics & Math across Software Engineer, Data Scientist, Machine Learning Engineer, and Product Manager roles. Real questions from actual interviews with detailed solutions tailored for interview preparation and role-specific skill building. Expect coding-heavy rounds and design-focused conversations first, then analytics and behavioral assessments that probe impact, collaboration, and "Googleyness." For Software Engineer candidates this collection emphasizes string and substring matching, memory-efficient undo/redo and batched state operations, graph/time-series connectivity and queue problems, plus scaling for huge inputs and behavioral scenarios about teamwork and ambiguity. Data Scientist questions repeat themes in causal and unbiased upgrade experiments, bootstrap inference and percentile estimation from buckets, sampling and subarray algorithms, and sequence analytics. Machine Learning Engineer prompts focus on LLM lifecycle and trade-offs, recommendation and cold-start ranking strategies, weighted sampling and search, and building chatbots over mixed structured/unstructured data. Product Manager items center on Google Maps/Android product ideation, real-time data throughput and estimation, market sizing, and explaining technical tradeoffs to non-technical stakeholders. Use targeted coding practice, mock design interviews, experiment design drills, and concise STAR stories for best results.
"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"
"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"
"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."
"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."
"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."
"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."
"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."
Design a Security Monitoring Framework
Design a security monitoring framework for a cloud infrastructure environment. The framework must continuously monitor hosts and workloads for suspici...
Measure Bird Species Segregation
You are a data scientist analyzing bird observations from a forest. The ecology team wants to know whether different bird species are spatially segreg...
Evaluate AI Workflow Product Metrics
You are the data scientist supporting an AI workflow-suggestion feature in an enterprise cloud product. The feature surfaces recommended workflow acti...
Design an Online Coding Judge Platform
Design an Online Coding Judge Platform Design an online coding-practice and judging platform (similar to LeetCode or Codeforces). Users should be able...
Solve Rooms and Top-K Streams
You are asked to solve two independent coding problems. Problem 1: Minimum concurrent meeting rooms Given a list of meeting time intervals intervals, ...
Discuss Complex Systems and Failure Examples
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Design Calendar Event Conflict Handling
Design the event settings and conflict-handling system for a large-scale calendar product similar to Google Calendar. Users can create, update, and de...
Solve Three Array and Matrix Path Problems
You are given three independent coding tasks. For each task, design an algorithm, implement it, and analyze its time and space complexity. 1. Find the...
Find Containing Range
Design a class that supports efficient point queries over a set of integer ranges. You are given a collection of inclusive, non-overlapping integer ra...
Implement Employee Management and Expression Evaluation
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Solve Flower Placement and Directory Deletion
You will solve two independent coding tasks. Task 1: Place Flowers on a Grid Given an N x N grid: - 'H' represents a house. - '0' represents an empty ...
Explain ranking cold-start strategies
You are interviewing for a machine learning engineer role focused on search, recommendations, or ranking. Discuss the following in the context of a la...
Consolidate On-Call Rotation Segments
You are given an array of on-call rotation intervals. Each interval has the form: `text {name: string, start: int, end: int} ` Each interval is half-o...
Design a pub-sub replay system
Assume you have a distributed publish-subscribe messaging system with topics, publishers that write messages, and subscribers that consume them. Desig...
Rearrange Tasks With Cooldown
You are given a list of tasks, where each task is represented by an uppercase letter, and an integer cooldown. Rearrange the tasks into an execution o...
Explain Your Most Technically Complex Project
Tell me about the most technically complex project you have worked on. Walk me through the problem and why it was hard, the constraints you operated u...
Choose Your Workplace Style
You are taking a forced-choice workplace-style assessment for a Software Engineer role. Each item contains three positive statements. For each item: 1...
Implement string formatting and request tracking tasks
You are given several small coding tasks. Implement each as described. Task A — Convert snake_case to camelCase Write a function that converts an iden...
Compute Company Suggestion Funnels
An AI workflow suggestion product logs suggestion-related events in a single event table. Table: suggestion_events - event_id STRING: unique event rec...
Compute Turnstile Crossing Times
You are given n people waiting to use a single-door turnstile. Each person has: - time[i]: the time when person i arrives at the turnstile. - directio...