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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
Easy
Software Engineer Locked

Compute decayed power levels in a graph

This question evaluates knowledge of graph algorithms and distance-based propagation, testing concepts such as shortest-path distance computation, mul...

Coding & AlgorithmsGraphs
24
0
206 people solved
Feb 12, 2026
Apple logo
AppleGoogleBloombergMicrosoft

Also asked at Bloomberg, Microsoft

Medium
Software Engineer

Rebuild Any Binary Tree Matching Preorder and Postorder

Problem Given preorder and postorder traversals of the same binary tree with distinct values, construct and return a tree matching both traversals. If...

Coding & AlgorithmsTrees
1
0
9 people solved
Coinbase logo
Coinbase
Medium
Product Manager

Goal-Driven Feature Prioritization: Ranking a Roadmap for a Product You Know

Pick a product you know well and explain how you would decide which new features to build for it next. `hint Anchor on one goal A ranking only means s...

Product / Decision MakingPrioritization & TradeoffsRoadmapping & Planning
0
0
8 people solved
Apr 29, 2026
Rippling logo
Rippling
Medium
Software Engineer Locked

Design a news aggregator like Google News

This question evaluates a candidate's competency in designing scalable, low-latency distributed systems for content aggregation, personalization, and ...

System DesignSearch & Feed SystemsSystem Design Fundamentals
23
0
266 people solved
Feb 12, 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
Google logo
Google
Medium
Software Engineer

Troubleshoot CPU, latency, and DNS issues

A) A Linux server’s CPU usage suddenly spikes. What immediate checks and commands would you run (e.g., top/htop, pidstat, perf, iostat), how would you...

Coding & AlgorithmsDebuggingNetworking
11
0
210 people solved
Sep 6, 2025
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
Google logo
Google
Hard
Software EngineerSenior+ Locked

Defend the Trade-Offs in One Project

Defend the major trade-offs in one project by connecting original constraints, architecture, alternatives, evidence, implementation details, and what ...

Behavioral & Leadership
2
0
45 people solved
Aug 2, 2026
Temu logo
Temu
Easy
Data EngineerSenior+ Locked

Compute User Login Streaks

This question evaluates SQL proficiency in processing event logs for time-series analysis, encompassing date arithmetic, deduplication of same-day eve...

Coding & AlgorithmsSQL
19
0
147 people solved
Apr 3, 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
Attentive logo
Attentive
Medium
Software EngineerNew Grad

Implement Due Broadcast Sender

You are building a notification system. You are given: - A mapping from company_id to a list of subscriber IDs. - A list of broadcast logs. Each log c...

Coding & Algorithms
6
0
85 people solved
Apr 11, 2026
Microsoft logo
MicrosoftGoogle
Medium
Software Engineer

Find the Smallest Stable Index II

Find the Smallest Stable Index II You are given an integer array nums of length n and an integer k. For each zero-based index i, its instability score...

Coding & AlgorithmsArrays & Strings
0
0
6 people solved
Google logo
GoogleAmazon
Hard
Software Engineer

Score a Grid After Coloring Column Prefixes

Score a Grid After Coloring Column Prefixes Problem You are given an n x n integer matrix grid. Every cell is initially white. In one operation, choos...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
1
0
8 people solved
Akuna Capital logo
Akuna Capital
Medium
Software Engineer

Compute max profit across dated stock quotes

You are given an unsorted list of price records for multiple stocks, each record as (date, symbol, price). Dates may be repeated across different symb...

Coding & AlgorithmsDynamic ProgrammingSorting
29
0
217 people solved
Sep 6, 2025
Squarepoint logo
Squarepoint
Medium
Risk Technology Software EngineerSenior+ Locked

Find a Target Sum Using Two Sorted Arrays

Determine whether two sorted arrays contain one value each that sum to a target using opposite-end pointers and overflow-safe arithmetic.

Coding & Algorithms
4
0
54 people solved
Aug 16, 2026
Tubi logo
Tubi
Medium
Machine Learning Engineer

ML System Design: Thumbnail Selection for a Streaming Catalog

ML System Design: Thumbnail Selection for a Streaming Catalog You work at a video streaming service. For each title in the catalog (movie or show), th...

ML System Design
5
0
82 people solved
Feb 10, 2026
Uber logo
Uber
Medium
Data Scientist

Compute maximum concurrent trips from intervals

You’re given n trip intervals [start, end) in seconds, where start < end, representing when a rider’s trip starts and ends in a city on a specific day...

Coding & AlgorithmsIntervals & SchedulingSorting
24
0
245 people solved
Oct 13, 2025
ByteDance logo
ByteDance
Hard
Software Engineer

Add TTL to an LRU cache

Design an in-memory LRU cache and explain how to extend it with TTL support. Requirements: - get(key) returns the value if the key exists and has not ...

Software Engineering FundamentalsData Structure DesignCaching
5
0
98 people solved
Mar 10, 2026
Meta logo
Meta
Medium
Software EngineerSenior+ Locked

Describe Using AI at Work

This question evaluates AI literacy, communication of technical impact, ethical judgment about safeguards, and the ability to quantify business or eng...

Behavioral & LeadershipAI-Assisted Development
8
0
107 people solved
May 16, 2026
Atlassian logo
Atlassian
Medium
Machine Learning Engineer Locked

Design a recommendation system for Jira issues

This question evaluates end-to-end ML system design competencies for recommendation services in an issue-tracking platform, covering data and labeling...

ML System Design
8
0
125 people solved
Oct 11, 2025
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