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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
Meta logo
Meta
Hard
Software Engineer Locked

Design and Evaluate a Solver for a 36-Card Sum-Fifteen Game

Clarify a 36-card triple-sum game, compare legal search and heuristic strategies, and evaluate reproducible win rates and runtime across many games.

Software Engineering FundamentalsBacktracking & RecursionSimulation & State Machines
4
0
39 people solved
Sep 4, 2026
Walmart Labs logo
Walmart Labs
Medium
Data ScientistSenior+ Locked

Explain Transformer Components and Tree-Ensemble Trade-offs

A machine-learning fundamentals interview covering encoder and decoder responsibilities in transformer systems and the practical differences between r...

Machine Learning
10
0
84 people solved
Aug 1, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Easy
Data Scientist Locked

Find Expected Spins Until Two Regions Appear

Find the expected spins needed to observe two distinct regions on a nonuniform spinner. The solution conditions on the first region, applies a region-...

Statistics & Math
1
0
25 people solved
Aug 16, 2026
Houzz logo
Houzz
Medium
Software Engineer Locked

Convert a Column Number to an Excel-Style Label

Convert one-based spreadsheet columns into A-through-Z and AA-through-ZZ labels, with correct handling of multiples of 26.

Coding & AlgorithmsMath & Number Theory
4
0
45 people solved
Sep 18, 2026
Snapchat logo
Snapchat
Medium
Software Engineer Locked

Design a Metrics System

Design a metrics system with clear measurement semantics, scalable ingestion and queries, controlled label cardinality, retention, and visible failure...

System DesignObservabilityData Ingestion & CDC
3
0
67 people solved
Aug 22, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Design an Online Tic-Tac-Toe Service with REST-Only APIs, Matchmaking and Multi-Region

Design an online Tic-Tac-Toe game. Two players are paired through online matchmaking and then play a game against each other, each from their own devi...

System DesignMultiplayer Game SystemsAPI Design
3
0
27 people solved
Aug 4, 2026
Amazon logo
Amazon
Hard
Software Engineer

Minimize Branch Merge Conflicts

You are given several feature branches that must all be merged into the main branch. Each branch contains a sequence of commits, and each commit modif...

Coding & AlgorithmsDynamic Programming
54
0
842 people solved
Jan 12, 2026
Uber logo
Uber
Medium
Software Engineer

Solve these algorithmic problems

You are given the following independent coding tasks. For each task, design an algorithm and implement a function that returns the requested output. -...

Coding & AlgorithmsDynamic ProgrammingBinary Search
78
2
623 people solved
Feb 11, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+ Locked

Adapt When Project Requirements Change Midway

Explain a mid-project requirement change through concrete first steps, personal ownership, alternatives, scope trade-offs, and revised acceptance crit...

Behavioral & LeadershipAmbiguity & Decision MakingOwnership & Execution
7
0
53 people solved
Sep 10, 2026
Cursor logo
Cursor
Medium
Software Engineer

Hash a Repository with a Merkle Tree and Find Changed Files

Design a Merkle-tree representation of a repository. Compute a hash for the complete repository, use it to locate a modified file, and extend the comp...

Software Engineering FundamentalsTreesCryptography
6
0
99 people solved
Apr 7, 2026
Google logo
Google
Medium
Software EngineerSenior+ Locked

Compute the Union of Two Sorted Interval Lists

Compute the union of two sorted, nonoverlapping lists of closed intervals. Merge the two streams in linear time, combining endpoint-touching, duplicat...

Coding & AlgorithmsIntervals & SchedulingTwo Pointers & Sliding Window
52
0
367 people solved
Aug 6, 2026
Google logo
Google
Easy
Software Engineer Locked

Check an Interval Against Existing Intervals for Conflicts

Check whether one half-open candidate interval conflicts with any interval in a large unsorted collection. Respect strict start and end semantics so r...

Coding & AlgorithmsIntervals & Scheduling
23
0
328 people solved
Aug 8, 2026
Tesla logo
Tesla
Medium
Software Engineer Locked

Coordinate Counter Updates Across Threads

Coordinate two threads that increment a counter from zero: one snapshots at 10, the other snapshots one second after a recorded synchronized launch, t...

Software Engineering Fundamentals
4
0
50 people solved
Aug 24, 2026
Chime logo
Chime
Medium
Data Scientist Locked

Define and Analyze Early Engagement

Define an early-engagement metric over users and transactions, implement the selected metric as a read-only relational query, examine trends and segme...

Data Manipulation (SQL/Python)Metrics & KPIsSegmentation & Cohort Analysis
8
0
121 people solved
Aug 17, 2026
Microsoft logo
MicrosoftGoogleAmazon

Also asked at Amazon, Bloomberg, Meta

Medium
Software Engineer

Find the Largest XOR Value From an Array Pair

Find the Largest XOR Value From an Array Pair Given a nonnegative integer array nums, return the maximum value of nums[i] XOR nums[j] over indices sat...

Coding & AlgorithmsBit ManipulationTrees
0
0
8 people solved
Netflix logo
Netflix
Medium
Software Engineer

Walk Through Your Data Platform Experience and Name Your Greatest Weakness

A hiring manager for a data platform engineering team opens the conversation by asking you to walk through your experience. The manager then closes wi...

Behavioral & LeadershipSelf-Awareness & GrowthMotivation & Fit
4
0
35 people solved
Sep 23, 2026
Cursor logo
Cursor
Medium
Software Engineer Locked

Implement a Merkle Tree for Repository Contents

This Cursor software engineering question evaluates how candidates represent repository contents with a Merkle tree and reason about change detection....

Software Engineering FundamentalsTreesData Structure Design
28
1
492 people solved
Jul 2, 2026
AMD logo
AMD
Medium
Software Engineer Locked

Evaluate Agents That Generate or Optimize Kernels and Compiler Code

Evaluate kernel and compiler agents with bounded transformation spaces, isolated execution, differential correctness checks, numerical tolerances, rep...

ML System DesignAI AgentsSandboxing & Isolation
3
0
22 people solved
Sep 14, 2026
Google logo
Google
Medium
Product Manager

Designing Safety, Quality and Cost Guardrail Metrics for a Gen AI Feature Launch

You are the product manager preparing to launch a feature built on a generative AI model. Before it goes live, which guardrail metrics would you put i...

Analytics & ExperimentationMetrics & KPIsAI Product Management
1
0
10 people solved
Oct 8, 2026
Ramp logo
Ramp
Medium
Software Engineer Locked

Implement Spreadsheet Cells with Dependencies

This Ramp software engineering question tests spreadsheet cell dependencies, recalculation order, and cycle handling. It is useful preparation for int...

Software Engineering FundamentalsData Structure DesignGraphs
12
0
242 people solved
Jul 2, 2026
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