Google Interview Questions
Practice 463 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 should monitor hosts and workloads for suspicious behavio...
Design an Online Coding Judge Platform
Design an online coding practice and judging platform. The platform should let users browse programming problems, write and submit code in multiple la...
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...
Evaluate AI Workflow Product Metrics
You are evaluating an AI workflow suggestion feature in a cloud product. The feature recommends workflow actions or automations to users. Part A: Afte...
Design Calendar Event Conflict Handling
Design the event settings and conflict-handling system for a large-scale calendar product similar to Google Calendar. Users should be able to create, ...
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...
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...
Explain Your Most Technically Complex Project
Tell me about the most technically complex project you have worked on. Prepare a concise but technically deep answer. Explain the problem, constraints...
Measure Bird Species Segregation
You are analyzing bird observations from a forest and want to determine whether different bird species are spatially segregated rather than randomly m...
Discuss Complex Systems and Failure Examples
Answer the following behavioral interview questions for a software engineering role: 1. Describe the most complex system you have designed, built, or ...
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...
Process Sharded Login Logs
You are given user login event logs generated by many servers across multiple regions. The logs are sharded by server or region, so no single machine ...
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...
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...
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...
Decompress encoded string with nested repeats
Given an encoded string, decompress it into its expanded form. Encoding rules: - Parentheses (...) denote a group. - A repetition count is written in ...
Find minimum threshold enabling grid path
Problem You are given an m x n integer grid grid. You start at the top-left cell (0, 0) and want to reach the bottom-right cell (m-1, n-1). You may mo...
Describe Key Behavioral Examples
Prepare to answer behavioral questions based on past internship or project experience. Common prompts include: 1. Tell me about a time when you disagr...
Describe teamwork and personal achievements
The interview included several behavioral questions: 1. Tell me about a time you helped a teammate who was underperforming. 2. Describe the most chall...
Design an A/B test for search ranking
Scenario You work on a search product and have built a new search ranking/retrieval algorithm (Variant B). The current algorithm is Variant A. You nee...