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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

Showing 20 results
Amazon logo
Amazon
Medium
Data Scientist

Demonstrate Amazon LP with deep follow-ups

Behavioral STAR Stories for Amazon Data Scientist Onsite Context You are preparing for an onsite Behavioral and Leadership interview for a Data Scient...

Behavioral & Leadership
13
0
100 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Software Engineer Locked

Support a Struggling Teammate Without Sacrificing Team Health

You lead a team with an important but challenging delivery. Use a concrete situation, your decisions and trade-offs, how you influenced others, and ev...

Behavioral & LeadershipMentoring & Team GrowthOwnership & Execution
16
0
152 people solved
Aug 6, 2026
Meta logo
Meta
Medium
Data Engineer

Solve four algorithmic library problems

Solve the following coding tasks: 1) Maximum Points from Different Categories: Given an array of items (category, points) and an integer k, choose exa...

Coding & AlgorithmsGreedyArrays & Strings
16
0
158 people solved
Aug 13, 2025
Meta logo
Meta
Medium
Data Scientist

Compute multi-account actives and unread coverage

You have two tables. Table: notifications +--------+------------+------------+-------------------+--------+ | userid | ds | time | notification_type |...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
6
0
54 people solved
Oct 13, 2025
Oracle logo
Oracle
Medium
Software Engineer

Walk through your resume and projects

Walk through your resume and projects Behavioral Prompt: Resume Walkthrough and Project Deep Dive (Software Engineer Onsite) Context You are interview...

Behavioral & LeadershipProject Deep DiveCommunication & Stakeholders
7
0
108 people solved
Jul 26, 2025
Citadel logo
Citadel
Medium
Data Scientist Locked

Stabilize LLM inference and estimate needed repeats

This question evaluates skills in designing reliable LLM inference pipelines and in statistical modeling of stochastic outputs, including reproducibil...

ML System DesignSampling & EstimationProbability
6
0
113 people solved
Oct 9, 2025
Perplexity logo
Perplexity
Medium
Software Engineer Locked

Design trending queries ranking system

This question evaluates the ability to design scalable, low-latency ML-driven systems for detecting and ranking trending queries, covering competencie...

ML System DesignSearch & Feed SystemsBatch & Stream Processing
19
0
170 people solved
Sep 4, 2025
Pinterest logo
Pinterest
Medium
Data Scientist

Implement DelayQueue with Idempotent Task Execution

Scenario Message broker offers DelayQueue where tasks execute at future timestamps, ensuring idempotency on duplicate IDs. Question Implement a delay ...

Coding & Algorithms
39
0
146 people solved
Jul 12, 2025
Snowflake logo
Snowflake
Medium
Frontend Engineer Locked

Implement an event emitter

This question evaluates understanding of event-driven programming and API design in a frontend environment, specifically the ability to manage event l...

Coding & AlgorithmsJavaScript & TypeScriptData Structure Design
7
0
130 people solved
Jan 11, 2026
Google logo
Google
Medium
Data Scientist

Evaluate Optimal Jogging Routes Feature with A/B Testing

Evaluate an Optimal Jogging Routes Feature with A/B Testing Google Maps is considering a feature that recommends optimal jogging routes, such as safe,...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
20
0
122 people solved
Jul 12, 2025
Bloomberg logo
Bloomberg
Medium
Software Engineer

Solve Number of Islands

Question LeetCode 200. Number of Islands – Given a 2D grid of '1's (land) and '0's (water), count the number of islands. Follow-up: implement the solu...

Coding & AlgorithmsGrids & MatricesGraphs
10
0
123 people solved
Aug 4, 2025
Snapchat logo
Snapchat
Medium
Technical Program Manager

Diagnose SLA drops and prioritize fixes

You are a Technical Program Manager responsible for an ML platform or service. Explain how you would perform root-cause analysis if a service's SLA su...

Product / Decision Making
8
0
74 people solved
Jun 12, 2025
OpenAI logo
OpenAI
Medium
Software EngineerSenior+ Locked

Design a Real-Time Online Chess Platform

Design the backend for a globally distributed real-time chess platform supporting moves, spectators, clocks, reconnects, and failover. Define authorit...

System DesignMultiplayer Game SystemsDistributed Coordination
6
0
73 people solved
May 23, 2026
Greptile logo
Greptile
Medium
Software Engineer Locked

Explain Career Decisions for a Customer Engineer Role

Connect past career decisions and current goals to a customer engineer role, with honest motivation and questions about technical ownership.

Behavioral & LeadershipMotivation & Fit
2
0
25 people solved
Sep 7, 2026
Stripe logo
Stripe
Medium
Product Manager

Theme Park GM Case: Cutting Attraction Wait Times at Disneyland

You are the general manager of Disneyland, and you want guests to spend less time waiting in line. What would you do? Explain which lines you would fo...

Product Design & StrategyOperations & Capacity
0
0
8 people solved
Feb 28, 2026
Slickdeals logo
Slickdeals
Medium
Product Manager

Diagnose a Sudden Single-Day Wave of Slack Extension Uninstalls

You discover that, within a single day, 20% of the users of a Slack extension uninstalled it. Explain the assumptions you would make about the situati...

Analytics & ExperimentationMetric Diagnostics
1
0
11 people solved
Feb 25, 2026
Netflix logo
Netflix
Medium
Product Manager

Netflix in India: Diagnose Slow Growth and Plan a Tenfold Expansion

You are a product manager at Netflix. The interviewer starts from the view that Netflix has not grown in India the way it hoped, and asks you two thin...

Product Design & StrategyGrowth & MonetizationMarket & Competitive Analysis
0
0
9 people solved
Nov 18, 2025
Amazon logo
Amazon
Medium
Data Scientist

Design an A/B Test for Dashboard Engagement Impact

A/B Test for Energy Dashboard Engagement A product team is launching a redesigned energy-usage dashboard in a consumer app and wants to measure whethe...

Analytics & Experimentation
18
0
109 people solved
Jul 12, 2025
Upstart logo
Upstart
Hard
Data Scientist

Decide to ship a signup experiment

A/B Test Plan: Redesigned User Signup Flow Context and Data You are analyzing an A/B experiment for a redesigned user signup flow. The dataset include...

Analytics & Experimentation
9
0
93 people solved
Oct 13, 2025
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Compute product of array except self

This question evaluates understanding of array manipulation, modular arithmetic, and algorithmic optimization by requiring computation of per-element ...

Coding & Algorithms
4
0
70 people solved
Feb 11, 2026
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