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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
Zoox logo
Zoox
Hard
Software Engineer Locked

Can a Car Meet a Truck?

This question evaluates a candidate's ability to reason about grid-based movement and time-indexed reachability, testing competencies in algorithmic a...

Coding & AlgorithmsGrids & Matrices
10
0
175 people solved
Dec 13, 2025
Capital One logo
Capital One
Medium
Software Engineer

Implement deposit, withdraw, and transfer in a class

Problem Implement a class AccountService that supports basic money operations on accounts. Operations - deposit(accountId, amount) - withdraw(accountI...

Coding & AlgorithmsLow-Level Design (OOP)Concurrency
21
0
217 people solved
Dec 25, 2025
Uber logo
Uber
Medium
Product Manager

Design a discreet in-trip alert for Uber riders who feel uneasy

Riders sometimes start to feel uncomfortable during an Uber trip. What would you launch so a rider can signal that discomfort, and how would it work? ...

Product Design & StrategyProduct Design & ImprovementTrust & Safety
0
0
5 people solved
Sep 11, 2026
Microsoft logo
Microsoft
Easy
Software Engineer

Why This Company and Role, Three Traits That Fit, Job Changes, and Project Ownership

These questions come from several rounds of a software engineer interview loop. The role sits in a Windows and devices organization, its hiring teams ...

Behavioral & LeadershipMotivation & FitProject Deep Dive
3
0
25 people solved
Sep 30, 2026
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
Atlassian logo
Atlassian
Medium
Software Engineer Locked

Find smallest common organization for employees

The question evaluates competency in hierarchical and graph data structures, including tree lowest-common-ancestor reasoning, DAG ancestor minimality,...

Coding & AlgorithmsTreesGraphs
23
0
177 people solved
Jan 14, 2026
Rippling logo
Rippling
Medium
Software Engineer

Design a music player with favorites cap

Implement an in-memory music player that supports: addSong(id, metadata), removeSong(id), play(id), pause(), next(), prev(), getNowPlaying(), queueSon...

Coding & AlgorithmsData Structure Design
40
0
320 people solved
Sep 6, 2025
xAI logo
xAI
Medium
Product Manager

xAI PM Behavioral: Running Contractor Programs That Improve Models After Training

Tell me about a time you led a large effort to make a model or algorithm better after its initial training, with much of the work done by contractors....

Behavioral & LeadershipLeadership & InfluenceAnnotation & Label Quality
0
0
7 people solved
Jun 27, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Answer general fit and AI safety questions

Answer general fit and AI safety questions Behavioral and AI-Safety Interview Prompts (Software Engineer, Onsite) Context You are interviewing for a S...

Behavioral & LeadershipMotivation & FitAI Safety & Alignment
48
0
377 people solved
Aug 1, 2025
Chime logo
Chime
Medium
Software Engineer

Compute minimum time with task cooldowns

You are given a multiset of task types represented by uppercase letters (e.g., A, A, A, B, B, C). Each task takes exactly 1 time unit to execute. Runn...

Coding & AlgorithmsGreedy
45
0
378 people solved
Aug 7, 2025
Meta logo
Meta
Medium
Software EngineerSenior+

Longest Balanced Substring in a String of Parentheses

Reported from a Meta software engineering coding round. You are given a string s that contains only the characters ( and ). A string is balanced if it...

Coding & AlgorithmsStacks & QueuesDynamic Programming
1
0
15 people solved
Mar 26, 2026
Coinbase logo
Coinbase
Medium
Data Scientist

Write SQL: sum values ≤ each row’s value

Given table numbers(id INT PRIMARY KEY, val INT), return for every row the sum of all val across the entire table that are ≤ that row’s val (i.e., com...

Data Manipulation (SQL/Python)SQLIndexing & Query Performance
11
1
99 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Software EngineerSenior+ Locked

Group Anagrams

This question evaluates a candidate's ability to design an efficient grouping algorithm using hashing and string canonicalization, a staple category i...

Coding & Algorithms
4
0
39 people solved
Jun 28, 2026
J.P. Morgan logo
J.P. Morgan
Medium
Software EngineerIntern

Minimize Operations to Balance Shipments

A shop has n item types, where quantity[i] is the positive integer quantity of the i-th item type. The item types must be shipped in two non-empty con...

Coding & Algorithms
13
0
107 people solved
Mar 21, 2026
Microsoft logo
Microsoft
Medium
Machine Learning Engineer Locked

Implement a resumable data loader

This question evaluates a candidate's ability to design stateful, resumable data iteration with deterministic shuffling and compact serializable check...

Coding & Algorithms
7
0
83 people solved
Feb 11, 2026
Moloco logo
Moloco
Medium
Data Scientist

Find top advertisers and cost per KPI

You are given three advertising campaign tables. Table: campaign_spend | Column | Type | Description | |---|---:|---| | date | DATE | Calendar date in...

Data Manipulation (SQL/Python)
3
0
27 people solved
Apr 23, 2026
Apple logo
Apple
Medium
Product Manager

Pick and Rank the Headline Features for Apple's Next Major iOS Release

You are a product manager at Apple responsible for delivering iOS 19, the next major release of the iPhone operating system. Which features would you ...

Product Design & StrategyPrioritization & TradeoffsRequirements & Launch Execution
0
0
9 people solved
Jul 22, 2026
Confluent logo
Confluent
Medium
Software EngineerSenior+

Design an LRU Cache with a Constant-Time Average

Design an LRU Cache with a Constant-Time Average Design an in-memory cache with fixed positive capacity. Keys are unique strings and values are signed...

Software Engineering Fundamentals
15
1
132 people solved
Jan 1, 2026
Gusto logo
Gusto
Medium
Software EngineerSenior+ Locked

Implement a timestamped map

This question evaluates a candidate's ability to implement time-indexed key-value storage, covering data structure design, versioning semantics, and a...

Coding & AlgorithmsData Structure DesignBinary Search
11
0
131 people solved
Mar 3, 2026
Swiggy logo
Swiggy
Medium
Product Manager

Diagnosing a sudden 20% week-over-week fall in Swiggy orders with metrics

You are a product manager at Swiggy, the Indian food and grocery delivery platform. Last week, orders came in 20% below the level of every previous we...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
0
0
12 people solved
Mar 21, 2026
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