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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.0k
Companies
570
Updated
10.05.2026
12.0k 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
Coinbase logo
Coinbase
Easy
Product Manager

Introduce Yourself, Why Coinbase, and Career Goals

You are interviewing for a Product Manager role at Coinbase. Prepare concise, truthful opening answers to these three prompts: 1. Tell me about yourse...

Behavioral & LeadershipMotivation & Fit
9
0
88 people solved
Mar 20, 2025
Apple logo
Apple
Medium
Software EngineerSenior+

Scale Digit-Square Convergence Requests

Design a service that receives very high request volume for the digit-square convergence operation. For each request, the input is a positive integer ...

System Design
5
0
49 people solved
Oct 28, 2025
Natoora logo
Natoora
Medium
Data Analyst Locked

Justify Using LLMs for Reporting

This question evaluates a candidate's ability to justify tool selection and system design for LLM-driven reporting, assessing competencies in LLM inte...

Machine Learning
3
0
58 people solved
Mar 4, 2026
Capital One logo
Capital One
Medium
Data Scientist

Describe handling an urgent ad-hoc request

Behavioral Prompt: Urgent, Unscheduled Analytics Request (STAR) You are interviewing for a Data Scientist role and are asked to provide a STAR-formatt...

Behavioral & LeadershipOwnership & ExecutionAmbiguity & Decision Making
9
0
114 people solved
Oct 13, 2025
MathWorks logo
MathWorks
Easy
Software Engineer

Compute probability of drawing reds

Probability of Drawing at Least Two Red Balls Problem A bag contains 6 red balls and 4 blue balls. Three balls are drawn uniformly at random without r...

Statistics & Math
5
0
39 people solved
Sep 6, 2025
Snapchat logo
Snapchat
Medium
Software Engineer

Handle cards, islands, Trie, median

Question LeetCode 914. X of a Kind in a Deck of Cards LeetCode 694. Number of Distinct Islands LeetCode 208. Implement Trie (Prefix Tree) LeetCode 295...

Coding & Algorithms
14
0
53 people solved
Jul 29, 2025
Amazon logo
Amazon
Hard
Data Scientist

Root-cause an incident and drive consensus

Root-Cause Plan: Sudden Drop in Voice Checkout Conversion (Alexa Shopping) You are informed that the "voice checkout conversion" KPI for Alexa Shoppin...

Behavioral & Leadership
9
0
70 people solved
Oct 13, 2025
Medium
Data Scientist

Interpret p=0.10 rigorously

A/B Test on Monthly Churn: Inference, Power, and Testing Choices You ran a 28-day A/B test to reduce monthly churn among subscribers, randomizing 150,...

Statistics & Math
4
0
43 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Applied Scientist

Implement SGD for linear regression and derive gradients

Prompt You are given a dataset of \(n\) 1D samples \(\{(x_i, y_i)\}_{i=1}^n\), where \(x_i\) and \(y_i\) are real numbers. We want to fit a linear mod...

Machine LearningML CodingRegression & Statistical Modeling
11
0
120 people solved
Dec 15, 2025
Creditkarma logo
Creditkarma
Medium
Machine Learning EngineerSenior+ Locked

Design Personalized Promotion Recommendations

This question evaluates a candidate's ability to design end-to-end machine learning recommendation systems, covering competencies such as data collect...

ML System Design
3
0
27 people solved
May 26, 2026
Meta logo
Meta
Hard
Data Scientist

Navigate reschedules, offers, and team-match uncertainty

Behavioral + Due Diligence + Risk Management (Data Scientist — Onsite) Context You are a Data Scientist candidate approaching an onsite. You are juggl...

Behavioral & Leadership
10
0
73 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Map stakeholders and influence routes

Behavioral Scenario: Coordinating Multiple Recruiters Across Teams (Data Scientist, Onsite) Context You're at the onsite stage for a Data Scientist ro...

Behavioral & Leadership
1
0
28 people solved
Oct 13, 2025
Uber logo
Uber
Hard
Data Scientist

Demonstrate business impact from a project

Behavioral Deep-Dive: Business Impact of a Prior Project (Technical Screen) Context: In a Data Scientist technical screen for a large two‑sided market...

Behavioral & Leadership
8
0
66 people solved
Oct 13, 2025
Apple logo
Apple
Hard
Software Engineer Locked

Count subarrays with sum equals k

This question evaluates a candidate's competency in array algorithms and reasoning about contiguous subarray sums, including correct handling of negat...

Coding & AlgorithmsArrays & Strings
25
0
189 people solved
Feb 11, 2026
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Design a pipeline orchestration system on Kubernetes

This question evaluates a candidate's ability to design scalable, highly available pipeline and workflow orchestration systems on Kubernetes, emphasiz...

System DesignJob Scheduling & WorkflowsContainers & Orchestration
12
0
129 people solved
Feb 11, 2026
Meta logo
Meta
Easy
Software Engineer

Implement list cloning and k-frequency finder

You are given two separate coding tasks. --- Problem 1: Deep copy a linked list with extra pointers You are given the head of a singly linked list. Ea...

Coding & AlgorithmsLinked ListsArrays & Strings
4
0
90 people solved
Nov 27, 2025
Amazon logo
Amazon
Medium
Software Engineer Locked

Merge Multiple Sorted Arrays

This question evaluates a candidate's competency in array manipulation, merging techniques, and algorithmic complexity analysis, including handling ed...

Coding & Algorithms
2
0
24 people solved
May 22, 2026
HBO logo
HBO
Medium
Data Scientist

Implement Director awards with Python OOP

Python OOP Exercise: Director extends Cast Context You are working with a simple class hierarchy where Director extends Cast. Implement a robust, test...

Coding & Algorithms
2
0
42 people solved
Oct 13, 2025
Capital One logo
Capital One
Hard
Data Scientist

Design profit evaluation for loyalty program

Loyalty Program Incremental Profit Evaluation Plan Context A national grocery chain launched a free loyalty card on January 1. You have 18 months of h...

Analytics & Experimentation
2
0
55 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Model comment counts and detect anomalies

Modeling Heavy-Tailed Comment Counts and Robust Monitoring You are analyzing daily comment counts at the post–day level. The distribution is heavy-tai...

Statistics & Math
5
0
51 people solved
Oct 13, 2025
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