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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
570
Updated
10.05.2026
11.9k Questions 570 Companies10.05.2026
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
Fluidstack logo
Fluidstack
Easy
Software Engineer Locked

Discuss a Complex Project, Motivation, Strengths, and Sustainable Work

Prepare supportable examples covering a complex cross-functional project, motivation, team questions, strengths, weaknesses, outside interests, and su...

Behavioral & Leadership
8
1
77 people solved
Jul 21, 2026
Citadel logo
Citadel
Medium
Software Engineer

Design Inventory Availability and Order Placement

Design Inventory Availability and Order Placement Design the inventory portion of an e-commerce system with two core operations: 1. Query the currentl...

System DesignTransactions & IsolationDistributed Transactions & Idempotency
30
0
244 people solved
Apr 6, 2026
OpenAI logo
OpenAI
Hard
Machine Learning Engineer

Debug transformer and train classifier

Debug and Fix a Transformer Text Classifier, Then Train and Evaluate It You inherit a small codebase for a transformer-based text classifier. It ships...

Machine LearningML CodingModel Evaluation
196
0
2304 people solved
Aug 4, 2025
Rippling logo
Rippling
Medium
Software Engineer

Find the Best and Worst Completion of a Partial Numeric Hand

Problem Complete a partial numeric card hand to five cards, returning the strongest and weakest possible completed hands under the game rules below. C...

Coding & Algorithms
5
0
69 people solved
Jan 25, 2026
Visa logo
Visa
Medium
Software Engineer I Locked

Find the Shortest Distance in a Weighted Undirected Graph

Find the minimum total weight between two vertices in a large undirected graph with positive edges. Build an adjacency list, run Dijkstra with a prior...

Coding & Algorithms
3
0
29 people solved
Aug 8, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Determine Whether Two Integers Sum to a Target

Determine whether two integers at distinct indices sum to a target, including the case where equal values occur twice. Validate all inputs, avoid muta...

Coding & Algorithms
6
0
60 people solved
May 15, 2026
A
Addepar
Medium
Software Engineer Locked

Implement a Transactional In-Memory Table

Implement an in-memory row-and-column table with transactional create, delete, update, find-and-replace, commit, and rollback behavior. The prompt def...

Coding & Algorithms
2
0
21 people solved
Aug 26, 2026
Waymo logo
Waymo
Easy
Data Scientist

Determine earliest collision among moving cars

You are given n cars moving over time. Each car has known initial state at time \(t=0\): - 1D case (straight road): - initial position \(x_i\) (mete...

Coding & AlgorithmsMath & Number Theory
47
0
364 people solved
Jan 17, 2026
Waymo logo
Waymo
Medium
Data Analyst Locked

Top 5 Most Efficient Vehicle Models

This SQL question tests practical data manipulation skills including multi-table aggregation, NULL handling, and conditional filtering across a relati...

Data Manipulation (SQL/Python)
4
0
51 people solved
Jun 4, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Design a single- and multi-threaded web crawler

Web Crawler (single-threaded, then multi-threaded) You are given: - A starting URL startUrl (e.g., "http://news.example.com/a/index.html"). - An inter...

Coding & AlgorithmsGraphsConcurrency
90
0
725 people solved
Oct 26, 2025
Cursor logo
Cursor
Medium
Software Engineer Locked

Implement a Merkle Tree for Repository Contents

This Cursor software engineering question evaluates how candidates represent repository contents with a Merkle tree and reason about change detection....

Software Engineering FundamentalsTreesData Structure Design
26
1
457 people solved
Jul 2, 2026
IBM logo
IBM
Easy
Software Engineer

Sum the XOR of Every Cross-Array Pair

Sum the XOR of Every Cross-Array Pair You are given two integer arrays, a and b. For every ordered cross-array pair (a[i], b[j]), compute a[i] XOR b[j...

Coding & Algorithms
3
0
33 people solved
Aug 18, 2026
Waymo logo
Waymo
Medium
Software Engineer Locked

Compute Max Pooling Values and Coordinates

Practice a Waymo coding interview problem focused on compute max pooling values and coordinates. The prompt emphasizes edge cases, clean implementatio...

Coding & Algorithms
9
0
79 people solved
May 31, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Design a Cloud DevBox Platform

Design a cloud DevBox platform: a service that gives developers disposable or persistent remote development machines, accessible through a browser, SS...

System DesignSystem Design FundamentalsSandboxing & Isolation
68
0
562 people solved
Apr 20, 2026
Netflix logo
Netflix
Medium
Machine Learning Engineer

Implement Streaming Word Counter

Implement a class that records word frequencies from a stream of text. The class should support the following operations: 1. add_text(text: str) -> No...

Coding & Algorithms
5
0
61 people solved
Apr 22, 2026
Revolut logo
Revolut
Hard
Data Analyst

Define Ultra success and detect suspicious transactions

Assume the following relevant columns are available, and all timestamps are stored in UTC: - users(user_id BIGINT PRIMARY KEY, create_date TIMESTAMP, ...

Analytics & ExperimentationMetrics & KPIsSQL
24
0
193 people solved
Feb 23, 2026
Furtherai logo
Furtherai
Medium
Machine Learning EngineerSenior+

Motivation for an Early-Stage AI Startup, Hands-On AI Experience, and Startup Fit

This interview loop includes two conversational rounds that test motivation and fit for a staff-level applied AI engineering role at an early-stage st...

Behavioral & LeadershipMotivation & Fit
0
0
6 people solved
Aug 30, 2026
Voleon logo
Voleon
Easy
Data Scientist

Solve Markov, OLS-rotation, and coin-toss probability

Answer the following three interview questions. 1) Basic properties of a Markov (transition) matrix Let \(P\) be a transition matrix of a (time-homoge...

Statistics & MathProbabilityRegression & Statistical Modeling
75
0
673 people solved
Oct 6, 2025
Netflix logo
Netflix
Medium
Software Engineer Locked

Plan Eviction and Cleanup for a Production Cache

Turn a process-local timed cache into a production-ready component with bounded memory and request latency. Compare eviction and admission policies, c...

Software Engineering FundamentalsCaching
26
0
187 people solved
Jul 11, 2026
Barclays logo
Barclays
Easy
Data Scientist Locked

Determine Worker Counts from Production Ratios

Solve a production-ratio word problem by converting the 2-to-1 item ratio into nail and screw quantities before applying each worker's daily output. T...

Statistics & Math
6
1
44 people solved
Aug 20, 2026
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