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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
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
Airbnb logo
Airbnb
Medium
Software Engineer

Prioritize consumer product opportunities

Case: Improve Engagement in a Consumer App with Flat MAU Context You are given a large consumer mobile app whose monthly active users (MAU) have been ...

Behavioral & LeadershipProduct Design & ImprovementMetrics & KPIs
11
0
94 people solved
Sep 6, 2025
LinkedIn logo
LinkedIn
Medium
Software Engineer

Validate parentheses with one or three bracket types

Problem Given a string s consisting only of bracket characters, determine whether it is valid. A string is valid if: - Every opening bracket has a cor...

Coding & AlgorithmsStacks & Queues
8
1
88 people solved
Oct 20, 2025
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Answer common graph, grid, and array tasks

This set of problems evaluates algorithmic skills across arrays, graph theory, and grid/matrix traversal—covering sliding-window and contiguous-segmen...

Coding & AlgorithmsGraphsGrids & Matrices
26
0
241 people solved
Mar 1, 2026
Atlassian logo
Atlassian
Medium
Software Engineer Locked

Answer Values and Ownership Questions

This set of questions evaluates interpersonal and leadership competencies including values alignment, ownership, mentorship, teamwork, communication, ...

Behavioral & Leadership
3
0
44 people solved
Nov 10, 2025
Meta logo
Meta
Medium
Software Engineer

Describe conflict resolution and initiative

The behavioral round reportedly consisted of 7-8 standard questions. A polished version of the expected prompts would be: - Tell me about a time you h...

Behavioral & LeadershipConflict & CollaborationLeadership & Influence
6
0
83 people solved
Mar 4, 2026
Affirm logo
Affirm
Medium
Data Scientist

Diagnose Sudden Drop in Credit-Card Approval Rate

Diagnose Sudden Drop in Credit-Card Approval Rate Fraud Risk: Sudden Drop in Credit Approval Rate Context You are the on-call Data Scientist supportin...

Analytics & ExperimentationMetric DiagnosticsData Quality & Validation
18
0
155 people solved
Aug 4, 2025
Atlassian logo
Atlassian
Medium
Data Scientist

Rank each team’s top 3 scores in 2024

Using the same schema, compute each team’s top 3 highest-scoring games for season_year = 2024, treating each game from BOTH teams’ perspectives (i.e.,...

Data Manipulation (SQL/Python)
3
0
27 people solved
Oct 13, 2025
OneMain Financial logo
OneMain Financial
Hard
Data Scientist

Select and tune XGBoost hyperparameters

Binary Classification Under Compute and Imbalance Constraints Context You are training an XGBoost model for a binary classification problem with: - 1,...

Machine Learning
8
0
77 people solved
Oct 13, 2025
Google logo
Google
Hard
Data Scientist Locked

Model Soccer Shot Conversion

This question evaluates probabilistic predictive modeling, spatial-temporal feature engineering, model calibration and evaluation, and identification ...

Machine LearningSupervised LearningFeature Engineering
12
0
163 people solved
Dec 29, 2025
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Design a file sync and sharing service

This question evaluates system design competency, covering distributed storage architecture, synchronization protocols, conflict resolution and versio...

System DesignFile & Media StorageAPI Design
8
0
113 people solved
Jan 22, 2026
Amazon logo
Amazon
Hard
Data Scientist Locked

Plan and analyze an A/B test

This question evaluates expertise in experimental design and applied statistics — specifically power and sample-size calculations, clustering and desi...

Statistics & Math
6
0
72 people solved
Oct 13, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Walk through a project in detail

Walk Through a Significant Project Provide a deep-dive on one impactful project you led or contributed to. Cover: 1. Timeline: Start/end dates and maj...

Behavioral & LeadershipProject Deep Dive
22
0
181 people solved
Sep 6, 2025
Upstart logo
Upstart
Medium
Data Scientist

Solve drunk-passenger probability and simulate outcome

Lost Boarding Pass Puzzle: Last Passenger's Seat Context: Technical screen for a Data Scientist (Statistics & Math). Setup - There are n passengers la...

Statistics & MathPuzzles & BrainteasersProbability
20
0
210 people solved
Oct 13, 2025
Chicago Trading Company logo
Chicago Trading Company
Medium
Software EngineerNew Grad Locked

Describe Growth, Mistakes, and Obstacles

This prompt evaluates learning velocity, ownership, collaboration, accountability, and interpersonal problem-solving by eliciting concrete internship ...

Behavioral & Leadership
4
0
39 people solved
Jun 10, 2026
Uber logo
Uber
Hard
Data Scientist

Optimize Surge Notifications for Rideshare Drivers

Optimize Surge Notifications for Rideshare Drivers Scenario A rideshare marketplace experiences airport demand spikes. When demand exceeds supply, the...

Machine LearningRanking ModelsGeo & Delivery Systems
99
0
285 people solved
Aug 4, 2025
Snowflake logo
Snowflake
Medium
Software Engineer

Design error detection and propagation algorithms

You are given three related sub-problems about error detection and propagation. A) Log search: You have a chronologically ordered array of log lines. ...

Coding & Algorithms
10
0
71 people solved
Sep 6, 2025
TikTok logo
TikTok
Easy
Data Scientist

When prioritize precision vs recall

Context You are working on a product team and building (or evaluating) a binary classifier that triggers an action (e.g., show a warning, block conten...

Machine Learning
4
0
63 people solved
Nov 15, 2025
Uber logo
Uber
Hard
Software Engineer

Design MapReduce for schedules

Design a scalable job to compute rolling 15-minute meeting concurrency and room utilization You are given a massive log of meeting events with fields:...

System DesignBatch & Stream ProcessingIntervals & Scheduling
7
0
139 people solved
Sep 6, 2025
Stripe logo
Stripe
Medium
Data Scientist

Describe a high-impact project via STAR

Using STAR, walk me through one project you led that measurably changed a core business metric. Include: Situation (company, product, date range), Tas...

Behavioral & Leadership
5
0
52 people solved
Oct 13, 2025
Point72 logo
Point72
Medium
Data Scientist

Write SQL for recent customer activity

Write a single ANSI‑SQL query that produces, for every customer who has at least one non‑canceled order ever: (1) last_order_ts across all time consid...

Data Manipulation (SQL/Python)
3
0
28 people solved
Oct 13, 2025
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