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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
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
Visa logo
Visa
Medium
Product Manager

Product Roadmap & Stakeholder Trade-offs

Product Roadmap Prompt: End-to-End Approach and Stakeholder Trade-offs Describe your end-to-end approach to building a product roadmap. Explain how yo...

Product / Decision MakingRoadmapping & PlanningPrioritization & Tradeoffs
29
0
190 people solved
Jul 4, 2025
Visa logo
Visa
Medium
Data Scientist

Compute Total Spent in 2023 Excluding Refunds

transactions +----------------+---------+-------------+--------+------------------+ | transaction_id | user_id | merchant_id | amount | transaction_da...

Data Manipulation (SQL/Python)
2
0
34 people solved
Aug 4, 2025
Akuna Capital logo
Akuna Capital
Medium
Software Engineer

Solve swaps, graph paths, and movie DP

Solve swaps, graph paths, and movie DP Design and implement solutions for three tasks derived from a HackerRank-style assessment. 1) Minimum swaps to ...

Coding & Algorithms
8
0
125 people solved
Aug 8, 2025
Bloomberg logo
Bloomberg
Medium
Software Engineer

Implement anagram check and odd-even linked list

You are given two independent coding tasks. Task 1: Check if two strings are anagrams Implement a function that determines whether two given strings a...

Coding & AlgorithmsArrays & StringsLinked Lists
12
0
99 people solved
Oct 6, 2025
Snapchat logo
Snapchat
Medium
Software Engineer Locked

Find max node-value range across components

This question evaluates understanding of undirected graph connectivity and component-wise aggregation, specifically the ability to identify connected ...

Coding & Algorithms
4
0
55 people solved
Jan 10, 2026
PayPal logo
PayPal
Medium
Data Scientist

Influence Stakeholders Without Authority: Strategies and Examples

Influence Stakeholders Without Authority: Strategies and Examples Behavioral Interview (Onsite) — Data Scientist at PayPal Prompt You are in a hiring‑...

Behavioral & LeadershipLeadership & InfluenceAmbiguity & Decision Making
12
0
111 people solved
Aug 4, 2025
Uber logo
Uber
Medium
Software Engineer

Design Stock Price Alerts

Design a stock price alert system that allows users to create alerts for securities and receive notifications when the market price crosses a specifie...

System DesignReal-Time Systems
13
0
239 people solved
Dec 28, 2025
Apple logo
Apple
Hard
Software Engineer

Implement a Mutual-Exclusion Lock Without Built-In Locks

Implement a lock: a mutual-exclusion primitive with lock() and unlock(). You may not call any existing lock, mutex, semaphore, monitor or condition va...

Software Engineering FundamentalsConcurrencyOperating Systems
0
0
1 people solved
Aug 28, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Introduce yourself and explain why Bloomberg

Behavioral questions 1. Self-introduction / resume walkthrough - Give a 1–2 minute overview of your background. - Highlight 1–2 projects you’ve ...

Behavioral & LeadershipMotivation & FitProject Deep Dive
24
0
239 people solved
Jan 6, 2026
Capital One logo
Capital One
Medium
Data Scientist

Write one SQL for exam scores aggregation

You are given an exam database. Write a single SQL statement (CTEs allowed; one final statement only) that satisfies all three requirements below. You...

Data Manipulation (SQL/Python)
5
0
47 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software EngineerSenior+ AI

Infer an Unknown Alphabet Order

You are given a list of words that is already sorted according to an unknown alphabet. Derive one valid ordering of the characters in that alphabet. R...

Coding & Algorithms
3
0
50 people solved
Apr 8, 2026
Netflix logo
Netflix
Medium
Data Scientist

Justify all-cash compensation expectations and trade-offs

All-Cash Compensation Expectation (Data Scientist — HR Screen) Context You are in an HR screen for a Data Scientist role. Provide a clear, well-resear...

Behavioral & LeadershipMotivation & Fit
13
0
133 people solved
Oct 13, 2025
Ramp logo
Ramp
Medium
Software Engineer

Implement a React flag loader with typewriter effect

Scenario You are given a small React + TypeScript project with a Mocha test runner (and an autograder). The task is a practical front-end mini-project...

Software Engineering FundamentalsReact & UI Frameworks
12
0
230 people solved
Oct 26, 2025
Square logo
Square
Hard
Software Engineer

Implement transaction network queries

Problem You are building a small in-memory library to track pairwise customer transactions and answer connectivity questions about who has transacted ...

Coding & Algorithms
10
0
104 people solved
Oct 19, 2025
OpenAI logo
OpenAI
Hard
Software Engineer

Design an online ads serving system

System Design: Low-Latency Targeted Ad Serving (≤100 ms E2E) You are designing an online advertising serving system for web/app inventory with a stric...

System DesignAds SystemsSystem Design Fundamentals
40
0
329 people solved
Sep 6, 2025
Disney logo
Disney
Medium
Data Scientist

Write complex SQL for streaming funnels

You are analyzing a Disney/Hulu product funnel with events captured in a single table. Write ANSI-SQL (Snowflake/BigQuery compatible) to answer the su...

Data Manipulation (SQL/Python)
1
0
30 people solved
Oct 13, 2025
Netflix logo
Netflix
Medium
Software Engineer

Show Behavioral Fit and Experience

Show Behavioral Fit and Experience Behavioral and Leadership HR Screen — Software Engineer (Netflix) Context: This is an HR screen focused on your bac...

Behavioral & LeadershipMotivation & FitLeadership & Influence
39
0
274 people solved
Jul 29, 2025
Pinterest logo
Pinterest
Hard
Data Scientist

Diagnose CTR drop after recommendation launch

Experiment Diagnosis: Horizontal Recommendations Carousel on Home Context A new horizontal recommendations carousel was launched on the home page. In ...

Analytics & ExperimentationMetric DiagnosticsExperiment Analysis & Readout
11
0
150 people solved
Oct 13, 2025
eBay logo
eBay
Medium
Software EngineerSenior+

Design a Relational-to-DynamoDB Migration System

Design a production migration system that moves an existing e-commerce service from a relational database to DynamoDB with minimal downtime. Your desi...

System DesignStorage & ShardingData Ingestion & CDC
15
0
142 people solved
Apr 8, 2026
Meta logo
Meta
Medium
Software Engineer

Design prefix-sum function and max stack

Question LeetCode 303. Range Sum Query – Immutable (design a reusable prefix-sum function) LeetCode 716. Max Stack (similar design question) https://l...

Coding & Algorithms
8
0
48 people solved
Jul 29, 2025
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