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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
Current logo
Current
Hard
Software Engineer

Design a metrics monitoring system

Design a metrics monitoring system System Design: Metrics Monitoring Platform Context Design a cloud‑native, multi‑tenant metrics monitoring system fo...

System DesignObservabilityBatch & Stream Processing
26
2
179 people solved
Jul 31, 2025
Meta logo
Meta
Medium
Software Engineer

Design a YouTube/Netflix video platform

Design a video platform similar to YouTube/Netflix. Requirements: - Upload videos (for YouTube-like) and/or ingest catalog (for Netflix-like). - Trans...

System Design
5
0
87 people solved
Feb 25, 2026
Thomson Reuters logo
Thomson Reuters
Easy
Machine Learning EngineerSenior+

Applied Machine Learning Assessment: Metrics, Evaluation, and NLP Fundamentals

Reason through an applied machine-learning assessment covering annotation agreement, model metrics, reproducibility, NLP basics, ranking metrics, and ...

Machine Learning
7
0
57 people solved
Apr 20, 2026
Glean logo
Glean
Easy
Data Scientist

Reason about MAU error after user ID rehash

A product tracks activity using user_id from login events, and computes MAU as: - MAU (L30D) on date d = number of distinct user_id with at least one ...

Analytics & Experimentation
9
0
97 people solved
Nov 10, 2025
Verkada logo
Verkada
Medium
Software Engineer Locked

Design real-time per-status device counts

This question evaluates a candidate's ability to design scalable, fault-tolerant real-time aggregation systems that produce per-minute status counts, ...

System DesignBatch & Stream ProcessingData Ingestion & CDC
13
0
237 people solved
Jan 19, 2026
Google logo
Google
Medium
Software Engineer

Compute minimum number of rooms needed

Problem You are given a list of meetings, each with a start time and end time. A single room can host only one meeting at a time. Two meetings overlap...

Coding & AlgorithmsIntervals & Scheduling
31
1
497 people solved
Feb 12, 2026
StubHub logo
StubHub
Medium
Software Engineer Locked

Implement a Composable Event Recommendation Engine

This question evaluates a candidate's skills in software design and implementation for recommendation systems, focusing on modular object-oriented arc...

Coding & AlgorithmsLow-Level Design (OOP)
9
0
120 people solved
Jan 21, 2026
Google logo
Google
Hard
Software Engineer

Design distributed message queue service

Design a Distributed Message Queue Service Problem Statement Design a distributed message queue system that supports very high throughput for both pro...

System DesignMessaging & Event-DrivenConsensus & Replication
48
0
372 people solved
Sep 6, 2025
Zoomcar logo
Zoomcar
Medium
Product Manager

Root-Causing a Rise in Complaints That Final Car Rental Bills Differ From the Quote

You are a product manager at Zoomcar, the self-drive car rental app. Complaints about billing accuracy have recently climbed sharply: customers say th...

Analytics & ExperimentationMetric Diagnostics
0
0
9 people solved
May 26, 2026
Amazon logo
Amazon
Medium
Applied Scientist

Implement K-means and solve interval/frequency tasks

Task 1 — Describe/implement K-means clustering Given: - A data matrix X with shape (n_samples, d). - An integer k (number of clusters). Explain (or wr...

Coding & AlgorithmsUnsupervised LearningIntervals & Scheduling
14
0
151 people solved
Dec 15, 2025
Meta logo
Meta
Medium
Software Engineer

Select a Ranked Large Decimal Integer

Problem Each entry in nums is a nonnegative integer represented as a decimal string without leading zeros. Return the representation of the k-th large...

Coding & AlgorithmsSortingMath & Number Theory
1
0
9 people solved
eBay logo
eBay
Medium
Software Engineer Locked

Investing in Deliberate Professional Growth

Describe a deliberate professional-growth activity through the skill gap, chosen practice, feedback loop, and observable change it produced. The promp...

Behavioral & Leadership
1
0
22 people solved
Aug 19, 2026
DevRev logo
DevRevAmazonGoogle

Also asked at Google, Meta, Microsoft, Bloomberg

Hard
Software Engineer

Find the Shortest Contiguous Segment Reaching a Sum Threshold

Problem Return the minimum length of a nonempty contiguous segment of nums whose sum is at least k. Return -1 if no segment qualifies. Values may be n...

Coding & AlgorithmsStacks & QueuesArrays & Strings
1
0
14 people solved
Perplexity logo
Perplexity
Medium
Product Manager

Metrics framework for an AI feature: user value, output quality, cost and safety

You are the product manager for a feature or product whose core output comes from an AI model. How would you define the metrics that show whether it i...

Analytics & ExperimentationMetrics & KPIsAI Product Management
0
0
16 people solved
May 9, 2026
Disney logo
Disney
Medium
Data Engineer

Generate All Valid Combinations of Balanced Parentheses

Generate All Valid Combinations of Balanced Parentheses Given an integer n representing the number of pairs of parentheses, generate all distinct stri...

Coding & Algorithms
6
0
66 people solved
Mar 27, 2026
Scale AI logo
Scale AI
Medium
Software Engineer Locked

Implement a Task Processor

This question evaluates understanding of priority-based scheduling and dependency resolution, focusing on data structures and graph-ordering concepts ...

Coding & AlgorithmsData Structure DesignHeaps & Priority Queues
46
0
405 people solved
Feb 27, 2026
Coinbase logo
Coinbase
Medium
Software Engineer Locked

Resolve a Disagreement in Code Review

Describe a code-review disagreement by separating correctness from preference, using evidence to resolve the technical issue, and preserving both qual...

Behavioral & Leadership
5
0
53 people solved
May 12, 2026
xAI logo
xAI
Medium
Software Engineer

Explain strings, moves, and concurrency

Question What is a string in programming languages? What fields are stored in a typical struct string and how would you implement one yourself? What i...

Coding & Algorithms
31
0
120 people solved
Jul 29, 2025
Deshaw logo
Deshaw
Medium
Software EngineerIntern Locked

Teach a New Technical Concept to an Undergraduate

Practice teaching an unfamiliar technical concept to an undergraduate with limited prior coursework. Choose an appropriate learning goal, move from in...

Behavioral & Leadership
7
0
79 people solved
Jul 1, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Design algorithms for test scheduling

Design algorithms for test scheduling You have tens of thousands of graphics test cases with inter-test dependencies and hardware/driver constraints. ...

Coding & AlgorithmsGraphsJob Scheduling & Workflows
9
0
136 people solved
Aug 9, 2025
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