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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
Google logo
Google
Hard
Software Engineer

Design task scheduler with dependencies

Design a Distributed Task Scheduling Infrastructure Context Design a distributed task scheduling and orchestration system that can run at scale, suppo...

System DesignJob Scheduling & WorkflowsFault Tolerance & Failover
35
0
380 people solved
Sep 6, 2025
Snowflake logo
Snowflake
Easy
Software Engineer Locked

Schedule prerequisite classes with retakes

This question evaluates competency in graph algorithms, dependency resolution, stateful scheduling, and robust error handling within the Coding & Algo...

Coding & AlgorithmsGraphs
17
0
138 people solved
Mar 1, 2026
Lyft logo
Lyft
Hard
Software Engineer

Design a Donation Platform

Question Design an online donation platform that lets users discover and contribute to charity campaigns or nonprofit organizations. Payment execution...

System DesignPayments & LedgersDistributed Transactions & Idempotency
22
0
188 people solved
Apr 24, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Reason About Delaying an AI Breakthrough Under Uncertain Risk

Suppose an AI project achieves a major breakthrough but important risks remain unknown. How would you decide whether to delay further progress or rele...

Behavioral & LeadershipEthics & ResponsibilityAmbiguity & Decision Making
1
0
26 people solved
Mar 30, 2026
Cubist logo
Cubist
Medium
Software Engineer

Design a reusable event-driven framework for trading strategies

As a take-home project, build a framework for trading strategies, including an event-handling layer, that a team will keep using and extending after y...

Software Engineering FundamentalsLow-Level Design (OOP)Code Quality & Maintainability
0
0
4 people solved
Aug 17, 2026
Uber logo
Uber
Hard
Software Engineer

Solve Knight and Reversal Problems

The online assessment contained two coding problems: 1. Generalized knight shortest path: Given an integer n, consider an n x n chessboard with coordi...

Coding & AlgorithmsGraphsGrids & Matrices
21
0
143 people solved
Apr 2, 2026
Google logo
Google
Easy
Data Scientist Locked

Implement sampling, subarray scan, and percentile estimate

This multi-part problem evaluates skills in random sampling and geometric probability for uniform 2D sampling, algorithmic array processing for findin...

Coding & AlgorithmsProbabilitySampling & Estimation
11
1
122 people solved
Feb 1, 2026
TikTok logo
TikTok
Medium
Backend Software Engineer

Process LRU Cache Operations

Process LRU Cache Operations Implement process_lru(capacity, operations) for a least recently used cache with integer keys and values. Each operation ...

Coding & Algorithms
2
0
32 people solved
Apr 12, 2026
eBay logo
eBay
Medium
Software EngineerSenior+

Solve Dependency, Prefix, and Cache Problems

Solve the following three coding problems. Problem 1: Determine Whether All Tasks Can Be Completed You are given numTasks, the number of tasks labeled...

Coding & Algorithms
6
0
57 people solved
Apr 8, 2026
Meta logo
Meta
Medium
Machine Learning EngineerIntern AI Locked

Derive Linear Regression Solution

This question evaluates understanding of one-dimensional linear regression estimation, the statistical derivation of the mean squared error objective ...

Machine Learning
13
0
97 people solved
Feb 8, 2026
Scale AI logo
Scale AI
Medium
Software Engineer

Implement Hook and Modify UI Interactions

Task: Implement a custom React hook and wire UI interactions Context You are working in a React app that already includes a basic API module and a sim...

Software Engineering FundamentalsReact & UI Frameworks
15
0
197 people solved
Sep 6, 2025
Atlassian logo
Atlassian
Medium
Software Engineer Locked

Design a CI/CD release notification service

This question evaluates object-oriented design skills, modeling of releases and changes, notification and event-driven system reasoning, and handling ...

Software Engineering Fundamentals
11
0
81 people solved
Jan 22, 2026
Adyen logo
Adyen
Medium
Software Engineer

Implement LRU and target-sum combinations

Implement LRU and target-sum combinations Design and implement the following: 1) An in-memory cache with Least Recently Used (LRU) eviction supporting...

Coding & AlgorithmsData Structure DesignBacktracking & Recursion
28
0
196 people solved
Jul 26, 2025
Remitly logo
Remitly
Hard
Software Engineer

Whiteboard and Deep Dive a Past Project

System Design: End-to-End Architecture Walkthrough Prompt Whiteboard the end-to-end architecture of a complex, user-facing system you led. Cover: 1. M...

System DesignProject Deep DiveSystem Design Fundamentals
12
0
137 people solved
Aug 13, 2025
Tubi logo
Tubi
Medium
Software Engineer

Execute TTL Cache Operations with Fetch-on-Miss

Execute TTL Cache Operations with Fetch-on-Miss Implement a pure simulator for a TTL cache. The simulator includes put, get, delete, size, and a deter...

Coding & Algorithms
4
0
42 people solved
Feb 16, 2026
Snapchat logo
Snapchat
Hard
Software Engineer

Count ways to decode digit string

You are given a string s consisting of digits '0' to '9'. The string encodes a message using the following mapping: - '1' → A, '2' → B, ..., '26' → Z....

Coding & AlgorithmsDynamic Programming
16
0
114 people solved
Dec 8, 2025
NVIDIA logo
NVIDIA
Hard
Software Engineer

Design a Dockerized GPU test pipeline

Design a Dockerized GPU test pipeline Design a Docker-Based Environment for Automated Graphics Tests on NVIDIA/AMD GPUs Context You need to design a r...

System DesignContainers & OrchestrationCI/CD & Deployment
22
0
189 people solved
Aug 9, 2025
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Design a Distributed Rate Limiter

This question evaluates expertise in distributed systems and real-time rate-limiting, covering scalability, low-latency design, concurrency control, c...

System DesignRate LimitingPartitioning & Consistent Hashing
38
0
275 people solved
May 14, 2026
Nuro logo
Nuro
Medium
Software Engineer Locked

Build a Concurrent Recurring Job Scheduler

Design a thread-safe recurring job scheduler with concurrent schedule and deschedule operations. Specify timing semantics, cancellation races, stale e...

Software Engineering Fundamentals
6
0
76 people solved
May 26, 2026
Workday logo
Workday
Easy
Software EngineerSenior+ Locked

Explain What You Value in Your Next Engineering Role

Give a prioritized, experience-based account of what you value in an engineering role, the trade-offs you accept, and the evidence you use to assess t...

Behavioral & Leadership
2
0
21 people solved
Aug 23, 2026
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