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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
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Solve Multiple Coding Interview Problems

This multi-part question evaluates skills in graph traversal and shortest-path reasoning (minimum transit routes), precise string and numeric manipula...

Coding & Algorithms
18
0
143 people solved
May 15, 2026
Jane Street logo
Jane Street
Easy
Machine Learning EngineerNew Grad

Marketplace Data Store: Order Matching and End-of-Day Reconciliation

Marketplace Data Store: Order Matching and End-of-Day Reconciliation You are building the core of a marketplace where sellers list individual units of...

Coding & AlgorithmsSimulation & State MachinesData Structure Design
18
0
268 people solved
Aug 2, 2025
Truefoundry logo
Truefoundry
Medium
Software Engineer Locked

Query a Versioned Array

A fixed-length array starts with all values equal to zero. Work through the function contract, boundary cases, correctness argument, and time and spac...

Coding & Algorithms
5
0
48 people solved
Aug 1, 2026
Profound logo
Profound
Easy
Software Engineer AI

Implement a Credit API Workflow

You are given documentation for a sandbox credit-management API. The documentation describes API operations for creating an account, adding credits, c...

Software Engineering FundamentalsAPI Integration & HTTP ClientsAuthentication & Authorization
16
0
164 people solved
Apr 4, 2026
Amazon logo
Amazon
Easy
Software EngineerIntern Locked

Discuss Feedback, User Needs, Influence, Deadlines, and Learning

Prepare distinct behavioral examples about critical feedback, user discovery, peer influence, deadline trade-offs, and learning a generative AI capabi...

Behavioral & LeadershipLeadership & InfluenceFailure & Learning
15
1
147 people solved
Aug 1, 2026
Barclays logo
Barclays
Easy
Data Scientist Locked

Determine Worker Counts from Production Ratios

Solve a production-ratio word problem by converting the 2-to-1 item ratio into nail and screw quantities before applying each worker's daily output. T...

Statistics & Math
6
1
44 people solved
Aug 20, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Design distributed median and mode

Design a Distributed System for Global Median and Global Mode at Massive Scale Context You are designing a distributed analytics system that computes ...

System DesignPartitioning & Consistent HashingBatch & Stream Processing
211
0
1882 people solved
Sep 6, 2025
Oracle logo
Oracle
Medium
Software EngineerSenior+ Locked

Find the Lexicographically Maximum Suffix

Return the lexicographically greatest nonempty substring of a lowercase string with up to 400,000 characters. Respect standard prefix ordering without...

Coding & Algorithms
4
0
39 people solved
Aug 21, 2026
C3 AI logo
C3 AI
Hard
Data Scientist Locked

Evaluate a Retrieval-Augmented Generation System

Build a rigorous RAG evaluation framework across retrieval recall, answer correctness, claim-level citations, abstention, permissions, freshness, late...

ML System Design
4
0
31 people solved
Aug 21, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Determine Whether Two Integers Sum to a Target

Determine whether two integers at distinct indices sum to a target, including the case where equal values occur twice. Validate all inputs, avoid muta...

Coding & Algorithms
6
0
59 people solved
May 15, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Implement and Debug Backprop in NumPy

Two-Layer Neural Network: Backpropagation and Gradient Check (NumPy) You are implementing a fully connected two-layer neural network for multi-class c...

Machine LearningML CodingDebugging
109
1
2073 people solved
Sep 6, 2025
Pinterest logo
Pinterest
Medium
Machine Learning Engineer

Design Hierarchical Permission Checks

You are given a hierarchy of groups represented as a tree, for example World -> Country -> City. Each advertiser can be granted access at any group no...

Coding & Algorithms
13
0
133 people solved
Apr 3, 2026
Ramp logo
Ramp
Hard
Software Engineer

Track Users From Flight History

You are given an unsorted list of flight records. Each record contains departure_airport, departure_time, arrival_airport, arrival_time, and user_id. ...

Coding & AlgorithmsArrays & StringsSorting
15
0
226 people solved
Jan 17, 2026
Upstart logo
Upstart
Medium
Software Engineer

Solve Reported OA Coding Problems

The post describes several algorithm questions from an online assessment. The concrete problems that can be reconstructed are: 1. Remove Blocks in a G...

Coding & AlgorithmsGrids & MatricesArrays & Strings
28
0
208 people solved
Apr 5, 2026
Cursor logo
Cursor
Medium
Software Engineer Locked

Implement Deterministic Merkle Hashing for a Repository

Implement deterministic Merkle hashing for files and directories in a repository abstraction. Define stable serialization, child ordering, streaming f...

Software Engineering FundamentalsTreesData Structure Design
68
0
527 people solved
Jul 13, 2026
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Collect Pins from Reachable Boards

Traverse a directed graph of boards in deterministic breadth-first order and collect each reachable pin only on its first appearance. Handle cycles an...

Coding & AlgorithmsGraphs
11
0
125 people solved
Jul 2, 2026
Mixpanel logo
Mixpanel
Medium
Data Scientist

Validate Features That Predict User Retention

Validate Features That Predict User Retention You have user records with signup time and plan type, plus timestamped user events. You are asked which ...

Machine LearningFeature EngineeringModel Evaluation
0
0
8 people solved
Sep 9, 2026
Worldquant logo
Worldquant
Hard
Software Engineer Locked

Compare Functional and Object-Oriented Python Design

Compare functional and object-oriented approaches for a Python component that transforms records while maintaining configuration and optional cached s...

Software Engineering Fundamentals
3
0
38 people solved
Aug 3, 2026
Hudson River Trading logo
Hudson River Trading
Hard
Software EngineerNew Grad

Build a Heart Disease Baseline

You are given a tabular dataset for predicting whether a patient has heart disease. The dataset contains a binary target column such as has_heart_dise...

Machine LearningSupervised LearningData Cleaning & Wrangling
10
0
170 people solved
Mar 13, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Implement and derive backprop from scratch

Tiny Neural Network From First Principles: Binary Classification Implement and analyze a minimal neural network for binary classification with a singl...

Machine LearningML CodingNeural Networks & Training
69
0
1205 people solved
Sep 6, 2025
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