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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
Google logo
Google
Medium
Software EngineerSenior+ Locked

Design A Drive-Style Usage Quota Limiter

Practice a cloud storage system design question about enforcing drive-style usage quotas during uploads, deletes, retries, and concurrent operations. ...

System DesignSystem Design FundamentalsConsistency & Availability
21
0
231 people solved
May 30, 2026
MongoDB logo
MongoDB
Medium
Software EngineerSenior+

Suppress repeat log messages printed within 10 seconds of their last printed occurrence

A logging component receives a stream of messages, each with an arrival timestamp in seconds. To keep the output readable, a message is printed only i...

Coding & AlgorithmsArrays & StringsRate Limiting
4
0
39 people solved
Jul 12, 2026
PayPal logo
PayPal
Medium
Product Manager

Venmo Feature Design: Running a Shared Household's Bills for Roommates

You are a product manager at PayPal working on Venmo, its peer-to-peer payments app. Design a feature that makes it easier for people who share a home...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
12 people solved
Oct 10, 2026
Airbnb logo
Airbnb
Hard
Software Engineer Locked

Process a Timestamped Workspace Credit Ledger

Implement a timestamped workspace credit ledger with deposits, transfers, spending, delayed cashback, rankings, merges, status checks, and historical ...

Coding & Algorithms
20
0
275 people solved
Aug 6, 2026
Meta logo
Meta
Medium
Product Manager

Root-Causing an Instagram Satisfaction Decline During Ad Monetization Growth

You are a product manager at Meta working on Instagram. Instagram's advertising revenue has gone up, but over the same stretch its user satisfaction h...

Analytics & ExperimentationMetric Diagnostics
1
0
20 people solved
Sep 20, 2026
Microsoft logo
Microsoft
Hard
Software Engineer

Count Non-Decreasing Arrays with Prescribed Digit Sums

Given an integer array requiredSum of length n, count the distinct arrays result of length n that satisfy all three conditions: 1. result is non-decre...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
5
0
42 people solved
Aug 4, 2026
Asana logo
Asana
Medium
Software Engineer

Implement an ASCII Art Printer

Implement an ASCII art printer. A font defines each supported character as a glyph with the same height. A glyph is a list of equal-length text rows. ...

Coding & Algorithms
19
0
163 people solved
Apr 2, 2026
Microsoft logo
MicrosoftGoogleMetaGoldman Sachs

Also asked at Meta, Goldman Sachs

Medium
Software Engineer

Seat Totals Across Inclusive Flight Bookings

Problem Flights are labeled 1 through n. A booking [first,last,seats] reserves seats seats on every flight from first through last, inclusive. Return ...

Coding & AlgorithmsIntervals & SchedulingArrays & Strings
1
0
10 people solved
Bilt Rewards logo
Bilt Rewards
Medium
Software Engineer Locked

Design a Configurable Reward Points Service

Design a configurable reward-points service that ingests transactions, applies versioned rules, and records explainable ledger effects. Explore safe r...

System Design
16
0
127 people solved
Jul 21, 2026
Shopify logo
Shopify
Medium
Software EngineerSenior+

Technical Deep Dive: Present a System You Built as a Design Retrospective

In this round of a senior software engineering loop you present a system you designed or led in a past role, using an architecture diagram you prepare...

System DesignProject Deep DiveSystem Design Fundamentals
1
0
28 people solved
Aug 10, 2026
Google logo
GoogleMetaAccenture

Also asked at Accenture, Microsoft, Amazon

Hard
Software Engineer

Find the Smallest Zero-Free Number with a Divisible Digit Product

Find the Smallest Zero-Free Number with a Divisible Digit Product Problem You are given a decimal string num representing a positive integer, and a po...

Coding & AlgorithmsMath & Number TheoryGreedy
2
0
18 people solved
Mercor logo
Mercor
Medium
Machine Learning Engineer Locked

Design Work Orchestration for Machine-Learning Data Pipelines

Design orchestration for versioned machine-learning data workflows built as task DAGs. Cover durable scheduling, retries, worker loss, lineage, reprod...

ML System DesignJob Scheduling & WorkflowsDistributed Transactions & Idempotency
67
0
468 people solved
Jul 8, 2026
Airbnb logo
Airbnb
Medium
Data Scientist Locked

Walk Through an Experiment From Design to Decision

Practice walking through an experiment from hypothesis and randomization to results and a launch recommendation. Cover primary metrics, guardrails, sa...

Analytics & ExperimentationProject Deep DiveExperiment Design (A/B Testing)
16
1
221 people solved
Jul 8, 2026
Meta logo
Meta
Medium
Software Engineer

Group Binary Tree Nodes by Vertical Column, Top to Bottom and Left to Right

Given a binary tree, report its node values column by column. The root is at column 0 and row 0. A left child is one column to the left of its parent ...

Coding & AlgorithmsTrees
7
0
56 people solved
Sep 14, 2026
Figma logo
Figma
Medium
Machine Learning Engineer Locked

Clarify a BERT Keyphrase Span-Extraction Task

Clarify a BERT keyphrase span-extraction task by recovering its interface, tokenizer and offset rules, valid spans, outputs, tests, and conditional im...

Machine Learning
9
0
72 people solved
Aug 25, 2026
Walmart Labs logo
Walmart Labs
Medium
Software Engineer

Maximum Sum of Non-Adjacent Values in a Row

A row of n slots holds non-negative integer values. Choose any set of slots such that no two chosen slots are adjacent: for every i, slots i and i + 1...

Coding & AlgorithmsDynamic Programming
7
0
95 people solved
Sep 25, 2026
Netflix logo
Netflix
Medium
Product Manager

Product Strategy and North-Star Metric for a Shared In-House AI Agent Platform

You are the product manager for an internal AI platform: other teams across the company use it to build their own AI agents. Answer in two parts. Clar...

Product Design & StrategyProduct StrategyMetrics & KPIs
0
0
12 people solved
Aug 23, 2026
Google logo
GoogleMetaAmazon

Also asked at Amazon, Bloomberg, TikTok

Medium
Software Engineer

Score a Balanced Parenthesis Expression

Problem For balanced s, score "()" as 1, concatenation AB as score(A)+score(B), and nesting (A) as 2*score(A). Return the total score. `cpp class Solu...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
1
0
12 people solved
Rippling logo
Rippling
Hard
Software Engineer Locked

Explain How AI Supports Your Design and Coding Work

Explain AI use in design and implementation through bounded tasks, independent requirement checks, reviewed code and tests, and correction of plausibl...

Behavioral & LeadershipAI-Assisted Development
6
0
44 people solved
Sep 13, 2026
Akuna Capital logo
Akuna CapitalGoogle
Medium
Software Engineer

Choose a Center and up to k Neighbors for Maximum Star Value

Problem In the undirected graph edges, a star contains one center node and any subset of its neighbors using at most k incident edges. Its value is th...

Coding & AlgorithmsGraphsGreedy
1
0
12 people solved
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