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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
EY logo
EY
Hard
Data Scientist

Compare two FS domains deeply

Compare Two Financial Services Domains Context: You are interviewing for a data-focused role in financial services. Pick any two domains from the list...

Behavioral & Leadership
2
0
37 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer

Implement power and balance-parentheses algorithms

Design and implement two algorithms: 1) Fast exponentiation: Implement a function pow(x, n) that returns a real number x raised to an integer exponent...

Coding & Algorithms
3
0
38 people solved
Sep 6, 2025
TikTok logo
TikTok
Medium
Software Engineer

Solve Topological Sort and Anagram Indices

1) Given a directed graph (n vertices, m edges), return a topological ordering if one exists. If the graph contains a cycle, detect it and explain how...

Coding & Algorithms
4
0
64 people solved
Aug 11, 2025
Robinhood logo
Robinhood
Medium
Data Scientist

List Transactions During Active 'Gold' Membership Period

customer_profile +-------------+----------------+--------------------+-------------------+ | customer_id | membership_type| membership_start_date| mem...

Data Manipulation (SQL/Python)
72
0
204 people solved
Aug 4, 2025
Netflix logo
Netflix
Easy
Machine Learning Engineer Locked

Design an ML Platform Portal

This question evaluates design and engineering skills for building an end-to-end machine learning platform, including experiment tracking, model regis...

ML System DesignMLOps & Model ServingModel Monitoring & Drift
10
0
105 people solved
Feb 23, 2026
Ansys logo
Ansys
Medium
Software EngineerIntern

Explain Core CS and Database Concepts

The interview included a fundamentals discussion covering topics like: - Explain common data structures and when you would choose arrays, linked lists...

Software Engineering Fundamentals
4
0
54 people solved
Dec 31, 2025
Amazon logo
Amazon
Medium
Data Scientist

Demonstrate Initiative Beyond Job Responsibilities

Demonstrate Initiative Beyond Job Responsibilities This behavioral prompt evaluates ownership, curiosity, and willingness to solve ambiguous technical...

Behavioral & Leadership
17
0
65 people solved
Jul 12, 2025
Amazon logo
Amazon
Medium
Data Scientist

Diagnose Bias–Variance Trade-off in Supervised Learning

Diagnose Bias–Variance Trade-off in Supervised Learning Supervised Learning Review (Customer-Facing Ranking Context) You are designing and evaluating ...

Machine LearningML FundamentalsProbability
57
0
221 people solved
Aug 4, 2025
Amazon logo
Amazon
Hard
Product Manager

Alexa Domain-Knowledge Data Pipelines

Alexa Domain-Knowledge Data Pipelines: Holidays and Animals Design an end-to-end knowledge pipeline for a global voice assistant such as Alexa to answ...

Product / Decision Making
17
0
75 people solved
Jul 4, 2025
BlackRock logo
BlackRock
Medium
Data Scientist

Describe a quantitative market model

Interview Prompt: Quantitative Model for Market Data Provide a concrete example of a quantitative model you built to analyze market data. Cover the fo...

Analytics & Experimentation
5
0
77 people solved
Sep 6, 2025
DoorDash logo
DoorDash
Hard
Software Engineer

Design a distributed cron job scheduler

Design a distributed cron job scheduler System Design: Distributed Cron Job Scheduler Context You are designing a multi-tenant, internet-scale cron jo...

System DesignJob Scheduling & WorkflowsDistributed Coordination
20
0
253 people solved
Jul 28, 2025
Meta logo
Meta
Hard
Software Engineer

Design an online coding judge

Question Design an online coding practice and judging platform (think LeetCode / HackerRank / Codeforces) where users submit solutions that are compil...

System Design
7
0
63 people solved
Aug 14, 2025
xAI logo
xAI
Easy
Software Engineer

In-Memory Key-Value Database with Nested Transactions

In-Memory Key-Value Database with Nested Transactions Implement an in-memory key-value database that processes a sequence of commands and supports nes...

Coding & Algorithms
5
0
45 people solved
Jun 7, 2025
Amazon logo
Amazon
Medium
Applied Scientist

Explain LLM architecture, tuning, evaluation

LLM Architecture, Positional Embeddings, Fine-Tuning (PEFT), Regularization, and Evaluation Context You are interviewing for a Machine Learning Engine...

Machine LearningTransformers & AttentionFine-Tuning & Alignment Techniques
9
0
105 people solved
Sep 6, 2025
Snapchat logo
Snapchat
Medium
Machine Learning Engineer

Determine Whether Courses Can Be Completed

You are given an integer numCourses, representing courses labeled from 0 to numCourses - 1, and a list prerequisites. Each prerequisite is a pair [cou...

Coding & Algorithms
1
0
15 people solved
Apr 29, 2026
Intersystems logo
Intersystems
Medium
Software Engineer Locked

Predict output when iterating ordered keys

This question evaluates understanding of ordered maps, iteration semantics, reverse traversal and accumulation of values in code. It is commonly asked...

Coding & Algorithms
8
0
62 people solved
Feb 12, 2026
Airbnb logo
Airbnb
Hard
Software Engineer

Design a multi-channel notification system

System Design: Multi-Channel Notifications (Email, SMS, Push, In‑App) Context Design a notification platform that reliably delivers messages across mu...

System DesignSystem Design FundamentalsMessaging & Event-Driven
11
0
217 people solved
Sep 6, 2025
Uber logo
Uber
Medium
Software Engineer

Design Product Page View Tracking

Design a view-tracking system for a large e-commerce product detail page. When a shopper opens a product page on web or mobile, the system should reco...

System DesignData Ingestion & CDCBatch & Stream Processing
11
0
116 people solved
Apr 12, 2026
Instacart logo
Instacart
Medium
Software Engineer

Describe your most complex end-to-end project

Describe your most complex end-to-end project End-to-End Project Deep Dive (Behavioral) Describe the most complex end-to-end project you led or signif...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
4
0
83 people solved
Jul 31, 2025
Shopify logo
Shopify
Medium
Data Scientist

Assess Candidate's Remote Collaboration and Technical Proficiency

Behavioral Interview: Remote Cross-functional Data Scientist You are interviewing for a Data Scientist role on a cross-functional analytics team that ...

Behavioral & Leadership
120
0
403 people solved
Jul 12, 2025
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