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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
570
Updated
10.05.2026
11.9k Questions 570 Companies10.05.2026
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
Spokeo logo
Spokeo
Medium
Data Scientist

Explain Your Career Transition and Motivation for Joining Spokeo

Explain Your Career Transition and Motivation for Joining Spokeo Behavioral Interview — Data Scientist (Onsite) Context You are in an HR/Manager behav...

Behavioral & Leadership
3
0
30 people solved
Aug 4, 2025
Capital One logo
Capital One
Medium
Data Scientist

Determine Weekly Break-Even Point for Diaper Service

Diaper Service Unit Economics and Inventory Flow A weekly subscription diaper-delivery and cleaning service operates with these parameters: - Customer...

Analytics & Experimentation
70
0
245 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Software Engineer

Design weighted random index picker

Design and implement a data structure that, given an array of positive integer weights w[0..n−1], supports pick() that returns index i with probabilit...

Coding & Algorithms
7
0
64 people solved
Jul 29, 2025
C3 AI logo
C3 AI
Easy
Data Scientist

Identify a classic bagging algorithm

Identify a classic bagging algorithm Multiple choice: Bagging Which of the following algorithms is a classic example of bagging (bootstrap aggregating...

Machine Learning
3
0
61 people solved
Aug 9, 2025
Amazon logo
Amazon
Medium
Software Engineer

Compute fruit spoilage time in a grid

Given an m×n grid representing kitchen cells: 0 for empty, 1 for fresh fruit, and 2 for spoiled fruit. Each minute, any fresh fruit adjacent (up, down...

Coding & Algorithms
3
0
54 people solved
Jul 31, 2025
Medium
Data Scientist

Apply Bayes theorem with conjugate priors

A website’s true daily purchase conversion p is unknown. Prior: p ~ Beta(2, 8). Day 1: 10 purchases out of 120 visits; Day 2: 18 purchases out of 150 ...

Statistics & Math
3
0
40 people solved
Oct 13, 2025
Instacart logo
Instacart
Hard
Software Engineer Locked

Implement worker time and payroll tracker

This question evaluates skills in designing in-memory data structures and algorithms for temporal event handling, interval arithmetic, stateful toggle...

Coding & AlgorithmsData Structure DesignIntervals & Scheduling
35
0
296 people solved
Feb 11, 2026
Snapchat logo
Snapchat
Medium
Data Scientist

Decide whether to launch Group Story

A new Group Story feature may cannibalize regular stories but increase overall engagement. Propose the experiment and decision framework: 1) Identify ...

Analytics & Experimentation
6
0
65 people solved
Oct 13, 2025
ByteDance logo
ByteDance
Medium
Software Engineer

Solve interval merging and histogram area

The coding round included two algorithm problems: 1. Merge overlapping intervals: Given a list of closed intervals [[start1, end1], [start2, end2], .....

Coding & Algorithms
6
0
78 people solved
Feb 18, 2026
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Solve String Addition and Expression Evaluation

This question evaluates string manipulation and parsing skills for numeric computation, covering addition of integers represented as character arrays ...

Coding & Algorithms
6
0
51 people solved
Apr 16, 2026
Shopify logo
Shopify
Medium
Data Scientist

Determine Growth of Pirated Theme Installations Over Years

merchants +-------------+------------+ | merchant_id | join_date | +-------------+------------+ | 1 | 2020-01-02 | | 2 | 2020-03-...

Data Manipulation (SQL/Python)
4
0
31 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Evaluate Metrics for Restaurant-Feature Impact and Engagement Trade-offs

Evaluate Metrics for Restaurant-Feature Impact and Engagement Trade-offs A large social app launches a restaurant-recommendation feed that may compete...

Analytics & Experimentation
87
0
196 people solved
Jul 12, 2025
Instacart logo
Instacart
Medium
Software Engineer

Compute immediate delivery percentage

Compute immediate delivery percentage LeetCode 1173. Immediate Food Delivery I – Write an SQL query to calculate the percentage of immediate (same-day...

Coding & AlgorithmsSQL
12
0
145 people solved
Aug 4, 2025
TikTok logo
TikTok
Hard
Data Engineer

Count islands using BFS without modifying grid

You are given an m x n binary grid grid where: - 1 represents land - 0 represents water - Islands are groups of horizontally or vertically adjacent la...

Coding & AlgorithmsGrids & MatricesGraphs
9
0
101 people solved
Oct 19, 2025
Hard
Data Scientist

Detect clickbait without labels, then supervise

Detecting Clickbait Ads Without Labeled Data Context You are asked to detect clickbait ad creatives when there is no labeled training data. You have i...

Machine Learning
4
0
50 people solved
Oct 13, 2025
NewsBreak logo
NewsBreak
Medium
Machine Learning Engineer

Walk through a key project

Walk through a key project Behavioral/Technical Prompt: Most Impactful Project Provide a concise, structured walkthrough of the most impactful project...

Behavioral & Leadership
9
0
79 people solved
Aug 9, 2025
Parafin logo
Parafin
Medium
Software Engineer

Discuss leadership and conflicts

Discuss leadership and conflicts Behavioral & Leadership: Collaboration and Conflict Resolution Context You are interviewing for a Software Engineer r...

Behavioral & LeadershipConflict & CollaborationLeadership & Influence
16
0
87 people solved
Aug 4, 2025
Google logo
Google
Medium
Software Engineer

Show leadership and teamwork

Show leadership and teamwork Behavioral Leadership Question Context You are in an onsite software engineering behavioral and leadership interview. The...

Behavioral & Leadership
15
0
72 people solved
Jul 29, 2025
Citadel logo
Citadel
Hard
Data Scientist

Design a time-series home-buy decision classifier

Take‑Home: Classifying Buy‑Now vs Wait Decisions in Housing Time Series Context You are given a monthly panel of regional housing and macro time serie...

ML System Design
11
0
97 people solved
Aug 13, 2025
Uber logo
Uber
Hard
Data Scientist Locked

Measure driver experience quantitatively

This question evaluates a data scientist's competencies in designing composite metrics, event-level aggregation, statistical validation, debiasing for...

Analytics & Experimentation
4
0
68 people solved
Oct 13, 2025
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