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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
J.P. Morgan logo
J.P. Morgan
Easy
Software Engineer

Describe a proud project and conflict

In a behavioral interview, be prepared to discuss your previous work experience, one project you are especially proud of, and a time you had a conflic...

Behavioral & LeadershipProject Deep DiveConflict & Collaboration
8
0
104 people solved
Mar 10, 2026
Apple logo
Apple
Medium
Software Engineer Locked

Revisit a Technical Decision That Turned Out Wrong

Describe a technical decision you materially influenced that later proved wrong. Explain why it was reasonable with the available evidence, what expos...

Behavioral & Leadership
3
0
28 people solved
Jun 3, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Detect runs and answer suffix queries

Given an array of comparable elements a[0..m-1] and an integer N: 1) Write a function that returns the maximum length of any run of consecutive equal ...

Coding & AlgorithmsTrees
24
0
325 people solved
Jul 28, 2025
Roblox logo
Roblox
Easy
Machine Learning Engineer

Extend counter to per-client rate limiting

You are extending the recent-requests counter to support per-client rate limiting. Each request now includes a clientId identifying the caller. You mu...

Coding & AlgorithmsData Structure DesignTwo Pointers & Sliding Window
8
0
163 people solved
Dec 8, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Build a Binary Tree from Descriptions

Construct a binary tree from parent-child-side descriptions and return its root, following the cited tree-construction problem.

Coding & Algorithms
1
0
18 people solved
Aug 28, 2026
Coinbase logo
Coinbase
Medium
Software Engineer

Analyze food-delivery data

Analyze food-delivery data You are given data for a food-delivery platform: a set of restaurants (each with a menu of items and prices, plus a geograp...

Coding & AlgorithmsArrays & StringsHeaps & Priority Queues
20
0
192 people solved
Aug 4, 2025
Crowdstrike logo
Crowdstrike
Medium
Software Engineer Locked

Design a file upload and scanning report system

This question evaluates a candidate's ability to design scalable, secure distributed systems for asynchronous file handling, including API design, dat...

System DesignFile & Media StorageApplication Security
22
0
171 people solved
Jan 22, 2026
Capital One logo
Capital One
Medium
Data Scientist

Handle extended team-matching uncertainty

Scenario: Team-Match Stall After Panel Context - You passed a company-wide panel in late February for a Data Scientist role. - First team-match meetin...

Behavioral & Leadership
4
0
73 people solved
Oct 13, 2025
Walmart Labs logo
Walmart Labs
Easy
Software EngineerSenior+

Merge two sorted arrays in-place

You are given two integer arrays sorted in non-decreasing order, and two integers m and n: - nums1 has length m + n. The first m elements of nums1 con...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
11
0
105 people solved
Dec 9, 2025
DoorDash logo
DoorDash
Hard
Software Engineer

Design a scalable food news feed

Question Design a news-feed feature for a food discovery app (DoorDash-style). The feed lists items showing title, author, short summary, and engageme...

System DesignSearch & Feed SystemsCaching
16
0
145 people solved
Sep 6, 2025
Waymo logo
Waymo
Medium
Software Engineer Locked

Design a Real-Time Player Matchmaking Service

Design a real-time player matchmaking service with join, cancel, expiration, compatibility matching, and notification flows. Define safe request state...

System DesignMultiplayer Game SystemsDistributed Coordination
7
0
67 people solved
May 13, 2026
Amazon logo
Amazon
Medium
Software Engineer

Maximize protected population with one-step guard shifts

There are n cities in a line (1-indexed). You are given: - population[1..n]: population of each city - unit: a binary string of length n, where unit[i...

Coding & AlgorithmsGreedyArrays & Strings
31
0
214 people solved
Jan 27, 2026
Axon logo
Axon
Medium
Software Engineer

Design a Test Orchestration System

Design a test orchestration service for an engineering organization. The service should let users define different kinds of tests, schedule when they ...

System DesignJob Scheduling & WorkflowsSystem Design Fundamentals
18
0
142 people solved
Nov 18, 2025
Meta logo
Meta
Medium
Software EngineerSenior+ Locked

Solve Tree Diameter and Palindromic Counts

This two-problem prompt evaluates proficiency in tree algorithms and recursion for computing longest paths in binary trees, along with string processi...

Coding & Algorithms
4
0
34 people solved
May 21, 2026
Salesforce logo
Salesforce
Medium
Software Engineer

Help a Colleague Resolve a Difficult Problem

Prompt Tell me about a time you helped a colleague resolve a difficult problem. Explain how you learned what they needed, how you contributed without ...

Behavioral & Leadership
0
0
15 people solved
Apr 11, 2026
Coinbase logo
Coinbase
Medium
Software Engineer

Implement debounced async autocomplete input

Implement debounced async autocomplete input Implement an Autocomplete Input Component (Frontend Technical Screen) Context Build an autocomplete input...

Software Engineering FundamentalsUI Components & AccessibilityJavaScript & TypeScript
12
0
94 people solved
Aug 1, 2025
Apple logo
Apple
Medium
Data Scientist

Build leak-safe sklearn model with calibration

You must build an end‑to‑end scikit‑learn pipeline to predict churn_28d at decision time t0 using only features available at or before t0 (no leakage)...

Machine LearningSupervised LearningFeature Engineering
10
0
131 people solved
Oct 13, 2025
OpenAI logo
OpenAI
Medium
Software Engineer

Merge overlapping time intervals efficiently

Given a list of closed intervals [start, end] with 0 <= start <= end, merge all intervals that overlap or touch and return a minimal set of non-overla...

Coding & AlgorithmsIntervals & Scheduling
19
1
262 people solved
Jul 31, 2025
Ramp logo
Ramp
Hard
Software Engineer

What Project Are You Proudest Of?

Tell me about the project you are most proud of. Why does it stand out, what was your specific contribution, what challenges did you face, and what me...

Behavioral & LeadershipProject Deep Dive
29
0
216 people solved
Jan 17, 2026
Robinhood logo
Robinhood
Medium
Software Engineer Locked

Compute dependency load factors in a DAG

This question evaluates understanding of graph theory and algorithms, specifically reachability and dependency analysis in a directed acyclic graph, a...

Coding & AlgorithmsGraphs
12
1
236 people solved
Feb 12, 2026
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