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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
Databricks logo
DatabricksAmazonMicrosoft

Also asked at Microsoft, Bloomberg, Google, Meta, Snowflake, Yandex, Revolut, TCS, Walmart Labs, Splunk

Hard
Software Engineer Locked

Find all anagram start indices

This question evaluates proficiency in string manipulation, algorithmic efficiency, and pattern detection through character frequency analysis, assess...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
23
1
213 people solved
Google logo
Google
Medium
Product Manager

Gemini request path: architecture from user prompt to grounded, streamed answer

At a high level, design the system that lets Gemini answer a query a user sends it: the main components and how one request moves through them. `hint ...

System DesignTechnical Tradeoffs for PMsLLM Applications
1
0
20 people solved
Jun 28, 2026
Databricks logo
Databricks
Medium
Software Engineer

Implement Snapshot Iterator Without Order Guarantees

Design and implement a mutable collection that supports snapshot iteration. The collection stores unique values and supports the following operations:...

Coding & Algorithms
17
0
162 people solved
Feb 16, 2026
Glean logo
Glean
Medium
Data Scientist

Google Slides Metrics: What to Track and How to Pick Three KPIs

You are the data scientist for Google Slides, the presentation editor in which people create decks, edit them together in real time, comment on and sh...

Analytics & ExperimentationMetrics & KPIs
0
0
3 people solved
Oct 25, 2026
Instacart logo
Instacart
Medium
Machine Learning Engineer

Square a Sorted Array in Linear Time

Given integers already in nondecreasing order, return their squares in nondecreasing order. Seek a linear-time solution instead of sorting the squares...

Coding & AlgorithmsTwo Pointers & Sliding Window
1
0
15 people solved
Jul 15, 2026
Scribd logo
Scribd
Medium
Software Engineer

Most Popular Actors Query When Object IDs Mix Movies and People With Multiple Roles

You are given movie and person data in which an object_id can refer either to a movie or to a person. A person can hold several roles in the same movi...

Data Manipulation (SQL/Python)SQL
4
0
31 people solved
Sep 4, 2026
LinkedIn logo
LinkedIn
Easy
Software Engineer Locked

Answer Repeated Shortest Word Distance Queries

Preprocess a fixed word array and answer many shortest-distance queries between distinct repeated words. The prompt defines case-sensitive matching, o...

Coding & Algorithms
9
0
100 people solved
Aug 19, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Explain Ownership of a Project Business Metric

Explain how one project's primary business metric was proposed, challenged, approved, instrumented, and monitored. Connect your technical contribution...

Behavioral & LeadershipMetrics & KPIsCommunication & Stakeholders
11
0
201 people solved
Jul 30, 2026
Microsoft logo
MicrosoftDisneyGoogle

Also asked at Google, TikTok, IBM

Medium
Software Engineer

Maximize One Value Under a Neighbor-Difference Budget

Problem Choose a length-n array of positive integers whose neighboring values differ by at most one in absolute value and whose total is at most maxSu...

Coding & AlgorithmsBinary SearchMath & Number Theory
0
0
10 people solved
Abridge logo
Abridge
Medium
Software Engineer Locked

Design a Secure Medical Audio Pipeline

This question evaluates a candidate's competency in designing secure, compliant, and scalable backend systems for handling sensitive medical audio dat...

System DesignSystem Design FundamentalsPrivacy & Compliance
23
0
176 people solved
Mar 17, 2026
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Microsoft, Bloomberg

Easy
Software Engineer

Report Each Player’s Earliest Recorded Login

Problem Report player_id and first_login, the earliest event_date for each player present in Activity. A logged-in day still counts when games_played ...

Data Manipulation (SQL/Python)SQL
0
0
7 people solved
Apple logo
Apple
Medium
Software Engineer

Design Deny-Priority Authorization over a Role Graph

Design a role-based access-control system where roles may inherit or reference other roles through a directed graph. Roles can explicitly grant or den...

System DesignAuthentication & AuthorizationCaching
1
0
15 people solved
Jul 25, 2026
DRW logo
DRW
Hard
Software EngineerNew Grad Locked

Maximize a Digit Subsequence with Even Counts of Ones and Twos

Delete digits while preserving order to maximize a number whose counts of both ones and twos are even, with linear-time handling of long strings.

Coding & AlgorithmsGreedy
19
0
133 people solved
Aug 28, 2026
Optiver logo
Optiver
Hard
Software Engineer

Count Bounded Buy-and-Sell Sequences

Count Bounded Buy-and-Sell Sequences You start with k shares. On each transaction day, you either buy one share or sell one share, but holdings may ne...

Coding & Algorithms
10
1
155 people solved
May 3, 2026
ZipHQ logo
ZipHQ
Hard
Software Engineer

Find shortest path on infinite grid

You are given an infinite 2D grid with integer coordinates. From a cell (x, y) you may move in 4 directions (North/South/East/West) by 1 cell per move...

Coding & AlgorithmsGraphs
72
0
580 people solved
Mar 11, 2026
Google logo
Google
Medium
Software Engineer Locked

Earliest Time of Full Connectivity

Find the earliest event timestamp at which an evolving undirected graph becomes fully connected.

Coding & Algorithms
16
5
256 people solved
Aug 18, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Explain Anthropic motivation and leadership stories

Anthropic's non-technical loop for Software Engineers spans two distinct sessions: a Culture / values interview and a Hiring-Manager (HM) round that r...

Behavioral & LeadershipMotivation & FitProject Deep Dive
35
0
535 people solved
Feb 28, 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
6
0
47 people solved
Aug 21, 2026
Harvey logo
Harvey
Medium
Software Engineer Locked

Implement a Cursor-Based Text Editor

This question evaluates understanding of data structures and algorithmic efficiency for mutable sequences and cursor manipulation, including analysis ...

Coding & AlgorithmsData Structure DesignStacks & Queues
11
2
207 people solved
Apr 20, 2026
Uber logo
Uber
Medium
Software Engineer

Model user-to-resource access permissions in a graph database and migrate to it

Design how to store which people can access which resources in a graph database, and how to answer access questions from it. The access data currently...

System DesignAuthentication & AuthorizationStorage & Sharding
1
0
34 people solved
Jul 25, 2026
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