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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
Apple logo
Apple
Hard
Data Scientist

Telemetry and Metric Specs for a Connected Vending Machine with Recommendations

A team is developing an internet-connected vending machine with a companion app. The machine will recommend products to customers based on their purch...

Analytics & ExperimentationMetrics & KPIsData Ingestion & CDC
0
0
5 people solved
May 2, 2026
C3 AI logo
C3 AI
Medium
Data Scientist Locked

Explain RNN Applications Beyond Time-Series Forecasting

Explore RNN applications beyond time-series forecasting, including text classification, sequence labeling, speech, handwriting, biology, and event str...

Machine Learning
1
0
17 people solved
Aug 9, 2026
Amazon logo
Amazon
Medium
Technical Program ManagerSenior+

Answer Amazon leadership behaviorals

In an Amazon L6 Senior Program Manager interview, candidates may be asked several Leadership Principles-style behavioral questions. Prepare senior-lev...

Behavioral & LeadershipOwnership & ExecutionConflict & Collaboration
23
0
228 people solved
Sep 7, 2024
Parafin logo
Parafin
Hard
Software Engineer

Design a loan application system

Design a loan application system System Design: End-to-End Online Loan Application Platform Context Design a small online lending platform where appli...

System DesignSystem Design FundamentalsPrivacy & Compliance
36
1
429 people solved
Jul 31, 2025
Boston Consulting Group logo
Boston Consulting Group
Medium
Data Scientist

Analyze Python Functions: Improve Readability and Efficiency

Analyze Python Functions: Improve Readability and Efficiency Scenario Zoom interview code-review segment: interviewer shares three short Python functi...

Coding & AlgorithmsCode Quality & MaintainabilityProgramming Languages
7
0
105 people solved
Aug 4, 2025
Google logo
Google
Medium
Data Scientist

Design Scalable Database and Analyze E-commerce Data

transactions +-----------+----------+------------+------------+ | user_id | order_id | product_id | order_time | +-----------+----------+-----------...

Data Manipulation (SQL/Python)
72
0
305 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
Lyft logo
Lyft
Medium
Software Engineer

Print the K-th non-empty line

Given a large UTF-8 text file, write a program that prints the K-th non-empty line. Do not load the whole file into memory. Specify how you handle fil...

Data Manipulation (SQL/Python)Operating SystemsProgramming Languages
17
0
154 people solved
Sep 6, 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
ByteDance logo
ByteDance
Easy
Software Engineer

Describe a Favorite Project and Its Hardest Technical Challenge

Describe a Favorite Project and Its Hardest Technical Challenge Prompt Tell me about a project you are especially proud of or enjoyed working on. Expl...

Behavioral & Leadership
2
0
26 people solved
Apr 17, 2026
Snapchat logo
Snapchat
Medium
Software Engineer

Explain median vs mean for L1/L2

Median vs. Mean Under L1 and L2 Loss, and the 2D Extension Explain, with intuition and a brief derivation, the relationship between the choice of loss...

Statistics & MathSampling & Estimation
29
0
230 people solved
Sep 6, 2025
Tesla logo
Tesla
Medium
Machine Learning Engineer

Implement automatic braking logic in Python

Using Python, implement a simple automatic braking function. Given current speed v (m/s), distance to obstacle d (m), maximum deceleration a_max (m/s^...

Coding & Algorithms
6
0
114 people solved
Sep 6, 2025
Optiver logo
Optiver
Medium
Software Engineer

Demonstrate task switching and memory strategies

Task-Switching and Working-Memory Exercise Context You will simulate a classic cognitive control task that requires rapid switching between two simple...

Statistics & Math
14
0
143 people solved
Aug 13, 2025
Meta logo
Meta
Medium
Data Scientist

Propose an ads recommendation model for shop ads

You need to propose a modeling approach for recommending/ranking shop ads (i.e., which shop ads to show and in what order) for a marketplace app. Desc...

Machine Learning
7
0
59 people solved
Oct 14, 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
Meta logo
Meta
Medium
Data Scientist

Analyze Group Call Adoption Using SQL Queries

CALL_LOGS | call_id | user_id | call_start | call_end | is_group_call | participant_cnt | | 101 | 12 | 2023-08-01 10:00...

Data Manipulation (SQL/Python)
156
1
270 people solved
Jul 12, 2025
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Explain a Project with a Diagram and Deep Dive into Your Design

Communicate a project through a simple data-flow diagram, then explain design choices, implementation ownership, failure behavior, and validation.

Software Engineering FundamentalsProject Deep DiveCommunication & Stakeholders
5
0
38 people solved
Sep 17, 2026
Meta logo
Meta
Medium
Software Engineer

Design an online chess platform

Design an online chess platform. Requirements: - User matchmaking (ranked/unranked). - Real-time gameplay with low latency moves. - Enforce game rules...

System DesignMultiplayer Game SystemsSystem Design Fundamentals
8
0
73 people solved
Feb 25, 2026
Hightouch logo
Hightouch
Medium
Product Manager

PM behavioral: an insight others missed that changed a business result

Describe an insight you reached that other people had missed, and how acting on it changed a business result. `hint Explain why it was hidden Intervie...

Behavioral & LeadershipAmbiguity & Decision MakingLeadership & Influence
0
0
6 people solved
Feb 21, 2026
Stripe logo
Stripe
Medium
Product Manager

Adapting LinkedIn's Professional Network for Students Starting Their Careers

How would you design a LinkedIn experience aimed at students? `hint Start from what students lack LinkedIn assumes a work history and an existing prof...

Product Design & StrategyProduct Sense
0
0
10 people solved
Nov 27, 2025
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