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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
Hard
Data Scientist

Evaluate RAG System Accuracy and Cost Control Strategies

Evaluate RAG System Accuracy and Cost Control Strategies Technical Phone Screen: LLM Pipelines, Knowledge Graphs, and RAG Context You are designing an...

Machine Learning
6
0
96 people solved
Aug 4, 2025
Figma logo
Figma
Medium
Software Engineer

Answer common behavioral questions

Behavioral Interview: STAR Responses for a Technical Screen (Software Engineer) You are preparing for a technical screen that includes behavioral and ...

Behavioral & LeadershipLeadership & InfluenceConflict & Collaboration
38
0
269 people solved
Sep 6, 2025
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer Locked

Review concurrent code quality

This question evaluates skills in concurrent programming, code review judgment, and software design by focusing on misuse of volatile, thread-safety w...

Software Engineering FundamentalsCode Quality & MaintainabilityConcurrency
5
0
85 people solved
Jan 29, 2026
Otter.Ai logo
Otter.Ai
Medium
Software Engineer

Design a Fault-Tolerant Meeting Bot Allocation System

Design a Fault-Tolerant Meeting Bot Allocation System Design the infrastructure between a web UI and a bot pool. A user submits a meeting URL and opti...

System Design
1
0
34 people solved
Dec 16, 2025
CVS Health logo
CVS Health
Medium
Data Scientist

Test payment-accuracy lift with p-value and power

AB Test of Payment Accuracy (Two Proportions) Assume transactions in the two periods are independent and large enough for normal approximations. Defin...

Statistics & Math
6
0
75 people solved
Oct 13, 2025
Citadel logo
Citadel
Medium
Data Scientist

Calculate Probability of Third Card Being an Ace

Calculate the Probability of the Third Card Being an Ace You draw three cards without replacement from a standard 52-card deck with 4 Aces and 48 non-...

Statistics & Math
24
0
107 people solved
Jul 12, 2025
Google logo
Google
Medium
Machine Learning Engineer

Implement a robust Python generator

Given a list of integers, write a Python generator that yields the integers from the list while handling edge cases such as None values, empty input, ...

Data Manipulation (SQL/Python)Programming LanguagesTesting & Quality
13
0
143 people solved
Sep 6, 2025
Icapital logo
Icapital
Medium
Software Engineer Locked

Generate Random Regional Records

Implement generation of N random integers, extend it to an inclusive numeric range, then create and print N objects whose number and one of three regi...

Software Engineering Fundamentals
1
0
19 people solved
Aug 25, 2026
TikTok logo
TikTok
Medium
Data Scientist

Improve TikTok's Algorithm for Diverse Content Discovery

Product Feedback and Experimentation: Diverse Content Discovery You are a frequent TikTok user interviewing for a Data Scientist role focused on analy...

Analytics & Experimentation
22
0
60 people solved
Jul 12, 2025
Stripe logo
Stripe
Medium
Product Manager

Remittance app retention: diagnose churn, prioritize fixes, and design validation tests

You are the product manager for a remittances product, a service people use to send money to someone in another country, most often family. You are as...

Product Design & StrategyGrowth & MonetizationExperiment Design (A/B Testing)
0
0
10 people solved
Feb 11, 2025
Google logo
Google
Hard
Software Engineer

Design a Collaborative Notes Service

Design a collaborative notes service, similar to a lightweight online document editor. Users should be able to create, read, update, delete, and share...

System Design
7
0
91 people solved
Apr 29, 2025
TikTok logo
TikTok
Medium
Software Engineer

Solve grid min path and sqrt by binary search

1) Given an m x n matrix of non-negative integers, find a path from the top-left to the bottom-right that minimizes the sum of cell values. You may on...

Coding & Algorithms
8
0
84 people solved
Sep 6, 2025
Amazon logo
Amazon
Hard
Software Engineer

Maximize total bandwidth of data channel pairs

You are optimizing how information flows through a network of processing nodes. There are n processing nodes. The bandwidth capability of the i-th nod...

Coding & Algorithms
7
0
87 people solved
Oct 1, 2025
Thumbtack logo
Thumbtack
Medium
Data Scientist

Detail NLP preprocessing and n‑gram choices

Describe your text preprocessing pipeline given the source modality: typed text, scanned/handwritten OCR, or speech-to-text. Specify language handling...

Machine Learning
13
0
106 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Compute two conditional probability scenarios

Probability — Two-Part Question Solve both parts. Show formulas and provide final numeric values. Part A — Coin Type Given HHH - A box has 5 coins: 3 ...

Statistics & Math
3
0
66 people solved
Oct 13, 2025
Sealth logo
Sealth
Medium
Software Engineer Locked

Simulate Threshold Grid Infection

This question evaluates understanding of discrete grid-based simulations and local state-transition rules, focusing on modeling infection spread, neig...

Coding & Algorithms
6
0
46 people solved
Mar 13, 2026
Meta logo
Meta
Medium
Software Engineer

Check Palindrome and Add Decimal Strings

Question LeetCode 266. Palindrome Permutation – Given a string, determine whether any permutation can form a palindrome. Follow-up: If a palindrome pe...

Coding & Algorithms
28
0
98 people solved
Jul 29, 2025
Meta logo
Meta
Medium
Software Engineer

Implement string and basic ML algorithms

You are given three implementation tasks that mix algorithms and basic machine learning models. --- Task 1: Longest substring with all distinct charac...

Coding & Algorithms
7
0
91 people solved
Dec 8, 2025
Amazon logo
Amazon
Medium
Applied ScientistSenior+ Locked

Compute and Explain Mean and Variance

Review mean and variance formulas, estimator conventions, stable linear-time algorithms, edge cases, and cross-language floating-point comparison limi...

Statistics & Math
14
0
99 people solved
Aug 15, 2026
TikTok logo
TikTok
Medium
Product Manager

Personal Motivation and Cultural Fit

Behavioral PM Onsite: Global Mindset, Project Selection, and Motivation You are interviewing for a Product Manager role on a global short-video or soc...

Behavioral & LeadershipMotivation & FitPrioritization & Tradeoffs
23
0
149 people solved
Jul 4, 2025
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