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Master your tech interviews with 10,000+ real questions from top companies.

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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
Scale AI logo
Scale AI
Easy
Software Engineer

Answer common project leadership questions

Prepare concise, structured answers for a behavioral interview covering these themes: - A project you are most proud of - Feedback you received and ho...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
30
0
416 people solved
Mar 17, 2026
Meta logo
Meta
Medium
Software Engineer AI

Implement an Expiring Record Store

Implement a level-based in-memory record store. The store contains records identified by a string key. Each record contains fields, where each field i...

Coding & Algorithms
5
0
59 people solved
Apr 1, 2026
Databricks logo
Databricks
Medium
Software Engineer

Design an IP filter using CIDR rules

Explain CIDR notation with a couple of concrete examples. Show how to convert a prefix like 192.168.0.0/16 into an inclusive 32-bit integer range and ...

Coding & AlgorithmsData Structure DesignNetworking
53
0
394 people solved
Jul 31, 2025
Rippling logo
Rippling
Medium
Data Analyst Locked

Find Payroll Bookings in the Latest Active Month by Country

Practice PostgreSQL date logic by finding the latest active payroll-booking month and aggregating amounts by headquarters country. The task tests prec...

Data Manipulation (SQL/Python)SQL
8
0
60 people solved
May 28, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Data Scientist

Count inversions in a permutation

Problem Given an array a of length n that is a permutation of distinct integers (e.g., 1..n), define an inversion as a pair of indices (i, j) such tha...

Coding & AlgorithmsArrays & Strings
17
0
134 people solved
Nov 28, 2025
Intuit logo
Intuit
Medium
Software Engineer

Solve word segmentation and React palindrome validation

Part A — String segmentation: Given a non-empty string s and a dictionary of valid words, design an algorithm to determine whether s can be segmented ...

Coding & AlgorithmsDynamic ProgrammingBacktracking & Recursion
12
0
109 people solved
Sep 6, 2025
Jane Street logo
Jane Street
Easy
Software Engineer

Stack Machine Interpreter with Typed Int and String Values

You are building an interpreter for a simple stack machine. The machine has a single stack, and every value on the stack is one of exactly two primiti...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
54
0
432 people solved
Apr 28, 2022
Instacart logo
Instacart
Medium
Backend EngineerSenior+ AI Locked

Fix the Broken Search Filter in a Book Catalog API

This question tests a backend engineer's ability to implement correct filtering logic, including case-insensitive substring matching, whitespace trimm...

Coding & Algorithms
7
0
59 people solved
Jun 19, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Account Balance with Expiring Grants

This question evaluates the ability to design a data structure that tracks time-limited credit grants, prioritizing expiration order during spending a...

Coding & Algorithms
4
0
62 people solved
Jun 23, 2026
Peregrine logo
Peregrine
Medium
Software Engineer

Fetch, group, and print paginated activities

Fetch, group, and print paginated activities Given a paginated API that returns (totalCount, activities[]) for a requested page, implement code that i...

Coding & AlgorithmsAPI Integration & HTTP Clients
18
0
170 people solved
Aug 4, 2025
Roblox logo
Roblox
Hard
Data Scientist Locked

Design and analyze an ads ranking experiment

This question evaluates a data scientist's experimental-design and causal-inference skills applied to ad ranking, including sample-size estimation, va...

Analytics & Experimentation
9
0
87 people solved
Oct 13, 2025
Crowdstrike logo
Crowdstrike
Medium
Software Engineer

Implement templated string replacement

You are given: 1. A dictionary (map) of placeholder keys to values, for example: `python values = { "db_host": "example.com", "db_port": 5001 } ` ...

Coding & AlgorithmsParsing & InterpretersArrays & Strings
9
0
137 people solved
Oct 5, 2025
Bloomberg logo
Bloomberg
Medium
Software Engineer

Design in-memory trade subscription processor

You are asked to design and implement the internal logic of an in-memory trade subscription processor in C++. A simplified interface is provided: `cpp...

System DesignData Structure DesignConcurrency
17
0
344 people solved
Oct 16, 2025
Figureai logo
Figureai
Medium
Data EngineerSenior+ Locked

Explain How AI Changes Data Engineering Work

Explain how AI-assisted tools could reshape data engineering while preserving human accountability. Cover risk-based task boundaries, privacy, indepen...

Behavioral & LeadershipAI-Assisted Development
3
0
21 people solved
May 20, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer Locked

Clarify and Design a Streaming Top-K Tracker

Turn an underspecified streaming top-k request into a precise ranking and time-window contract, then compare heap, ordered-count, and bounded-bucket d...

Software Engineering Fundamentals
1
0
28 people solved
Jun 16, 2026
Roblox logo
Roblox
Hard
Software Engineer

Design a real-time favorites service at scale

Design: Real-Time Favorites/Unfavorites Service at High Scale Context Design a backend service that lets users favorite/unfavorite items (e.g., posts,...

System DesignStorage & ShardingDistributed Transactions & Idempotency
24
0
245 people solved
Aug 12, 2025
Upstart logo
Upstart
Medium
Software Engineer

Decode an anagram sentence using vocabulary constraints

You are given: - vocab: a list of lowercase words (the "dictionary") - s: a string containing space-separated scrambled words Each scrambled word in s...

Coding & AlgorithmsArrays & StringsSorting
18
0
139 people solved
Mar 9, 2026
Attentive logo
Attentive
Medium
Software EngineerNew Grad

Design Broadcast Scheduling APIs

Design a broadcast messaging service for companies. Requirements: - Each company has a set of subscribers. - A client can schedule a message to be bro...

System DesignJob Scheduling & WorkflowsDistributed Transactions & Idempotency
25
0
175 people solved
Apr 11, 2026
Amazon logo
Amazon
Medium
Software Engineer

Find earliest time password becomes irrecoverable

You are given a password string of length n and an attack order array attackOrder[1..n], a permutation of 1..n. At second i (1-indexed), the virus rep...

Coding & Algorithms
5
0
47 people solved
Sep 6, 2025
Plymouth Rock Assurance Corporation logo
Plymouth Rock Assurance Corporation
Medium
Data ScientistIntern

Calculate Ultimate Loss by Policy Term

You work with insurance policy-term loss data. For a given policy term, its ultimate loss is defined as the sum of losses from the current term and al...

Data Manipulation (SQL/Python)
1
0
22 people solved
Jan 3, 2026
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