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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
Docker logo
Docker
Medium
Software Engineer Locked

Evaluate an arithmetic expression

This question evaluates parsing and expression-evaluation skills, specifically handling operator precedence, integer division truncation, multi-digit ...

Coding & Algorithms
8
0
73 people solved
Feb 14, 2026
Microsoft logo
Microsoft
Medium
Machine Learning EngineerIntern

Return the k most frequent values in an array with a deterministic tie rule

Given an integer array nums and an integer k, return the k values that occur most often in nums. Rank the distinct values of nums by frequency (number...

Coding & AlgorithmsHeaps & Priority QueuesSorting
2
0
24 people solved
Feb 5, 2026
Visa logo
Visa
Hard
Software EngineerSenior+ Locked

Count Subsequences That Move Between Positions

Practice a Visa coding interview problem focused on count subsequences that move between positions. The prompt emphasizes edge cases, clean implementa...

Coding & Algorithms
5
0
41 people solved
May 20, 2026
Amazon logo
Amazon
Hard
Data Scientist

Evaluate Ensemble Models for Bias-Variance, Speed, and Interpretability

Evaluate Ensemble Models for Bias-Variance, Speed, and Interpretability Large-Scale Recommendation System: Ensembles, Overfitting, Metrics, Architectu...

Machine Learning
90
0
359 people solved
Aug 4, 2025
Reddit logo
Reddit
Easy
Machine Learning Engineer

Design a Comment Ranking System for Threaded Post Discussions

Design the system that ranks the comments under a post on a large online discussion platform. Assume users write comments on posts, reply to each othe...

ML System DesignRanking ModelsModel Evaluation
0
0
2 people solved
Aug 13, 2026
Google logo
Google
Hard
Software Engineer

Design a prioritized log manager with eviction

Design a prioritized log manager with eviction Design a Log Store with Priority- and Recency-Aware Eviction Context You are designing an in-memory (or...

System DesignData Structure DesignHeaps & Priority Queues
11
0
116 people solved
Aug 1, 2025
Meta logo
Meta
Medium
Software EngineerSenior+

Count Right/Down Routes Across a Grid With Blocked Cells

A robot starts in the top-left cell of an m x n grid and wants to reach the bottom-right cell. Each move takes it exactly one cell to the right or one...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
1
0
13 people solved
Dec 31, 2025
Coinbase logo
Coinbase
Medium
Software Engineer

Discuss your proudest project

Discuss your proudest project Behavioral prompt — Your most impactful project Context You are in a behavioral/leadership interview for a Software Engi...

Behavioral & Leadership
5
0
106 people solved
Aug 8, 2025
Bank of America logo
Bank of America
Medium
Data Scientist

Explain core probability and ML statistics concepts

Answer the following short theory questions (you may use equations and brief examples): Probability 1. You roll two fair six-sided dice. - What is ...

Machine LearningProbabilityRegression & Statistical Modeling
24
0
189 people solved
Feb 11, 2026
Google logo
Google
Medium
Product Manager

Make the strategic case for Google's standalone search app on Apple's iPhone platform

You are interviewing for a product manager role at Google. The interviewer points to the Google app, the standalone app that iPhone users can install ...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
8 people solved
Sep 18, 2026
Netflix logo
Netflix
Medium
Software Engineer

Build and optimize a video playlist component

Build and optimize a video playlist component Design and implement a video playlist component in React (functional components) that meets the followin...

System DesignReact & UI FrameworksState Management
27
0
221 people solved
Aug 1, 2025
Amazon logo
Amazon
Easy
Software Engineer Locked

Find Unique Target-Sum Pairs

This question evaluates array-processing skills, correctness in handling duplicate values, and the ability to identify unique value pairs whose sums m...

Coding & Algorithms
4
0
48 people solved
May 2, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Design a prompt processing backend

Design a prompt processing backend System Design: Background Processing Backend for LLM Prompts Context Design a multi-tenant backend that processes l...

ML System DesignJob Scheduling & WorkflowsMessaging & Event-Driven
18
0
228 people solved
Jul 26, 2025
DoorDash logo
DoorDash
Medium
Data Scientist Locked

Diagnose rising cold-food complaints and choose metrics

This question evaluates a data scientist's diagnostic analytics skills, including hypothesis generation, causal inference, metric engineering, and A/B...

Analytics & ExperimentationMetric DiagnosticsExperiment Design (A/B Testing)
6
0
108 people solved
Sep 25, 2025
Uber logo
Uber
Hard
Software Engineer

Implement three interview-style coding tasks

You are given three separate coding tasks, all focused on algorithm and data-structure design. --- Task 1: Longest Bounded-Difference Subarray You are...

Coding & AlgorithmsTwo Pointers & Sliding WindowData Structure Design
19
0
163 people solved
Nov 11, 2025
Affirm logo
Affirm
Medium
Software Engineer

Discuss team fit and leadership with manager

Discuss team fit and leadership with manager Behavioral Interview Prep: 30‑Minute Hiring Manager Conversation (Software Engineer) Context You are prep...

Behavioral & LeadershipProject Deep DiveAmbiguity & Decision Making
13
0
136 people solved
Jul 15, 2025
Meta logo
Meta
Medium
Software Engineer

Design real-time live comments

Design a real-time comment system for live video (e.g., Facebook Live comments). Requirements: - Viewers post comments; all viewers see new comments q...

System Design
6
0
52 people solved
Feb 25, 2026
Amazon logo
Amazon
Medium
Software Engineer

Implement two array-cost minimization algorithms

Implement two array-cost minimization algorithms that appeared back-to-back in an AWS SDE online assessment. Each can be solved independently. Part 1 ...

Coding & Algorithms
16
0
120 people solved
Aug 7, 2025
Amazon logo
Amazon
Medium
Software Engineer

Maximum Gap Between Consecutive Workers' Stations

Maximum Gap Between Consecutive Workers' Stations You are given strings skill and station. Worker i requires the skill skill[i], and station j support...

Coding & AlgorithmsGreedyTwo Pointers & Sliding Window
0
0
6 people solved
Snapchat logo
Snapchat
Medium
Software Engineer

Solve Open the Lock BFS

Question LeetCode 752. Open the Lock – Given an initial lock state "0000", a target combination, and a list of deadend combinations that cannot be use...

Coding & AlgorithmsGraphsStacks & Queues
10
0
149 people solved
Aug 4, 2025
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