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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
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
Meta logo
Meta
Medium
Data Scientist

Compute daily post success rate for last 7 days

You have a table composer(user_id INT, event STRING CHECK(event IN ('enter','post','cancel')), event_date DATE). Compute the post success rate for eac...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
8
1
56 people solved
Oct 13, 2025
Google logo
Google
Easy
Software Engineer

Describe conflict resolution and stakeholder management

Behavioral Prompt Describe a time when you faced a serious conflict at work (e.g., disagreement on technical direction, priorities, scope, or executio...

Behavioral & LeadershipConflict & CollaborationCommunication & Stakeholders
11
0
103 people solved
Jan 11, 2026
6Sense logo
6Sense
Medium
Software Engineer Locked

Count Squares from Points in the Plane

Implement count_squares(points). Work through the function contract, boundary cases, correctness argument, and time and space complexity expected in a...

Coding & Algorithms
1
0
16 people solved
Jul 27, 2026
Amazon logo
Amazon
Medium
Software Engineer

Describe times exceeding and missing expectations

Behavioral Prompt: Exceeding and Falling Below Expectations Context You are interviewing for a Software Engineer role in a technical screen focused on...

Behavioral & Leadership
7
0
63 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Product Manager

Amazon PM behavioral: a stakeholder disagreement where your position was overruled

In an Amazon product manager behavioral interview, you are asked to describe a negotiation with your stakeholders that you did not win. Explain the si...

Behavioral & LeadershipConflict & CollaborationCommunication & Stakeholders
0
0
9 people solved
Jan 9, 2026
DoorDash logo
DoorDash
Medium
Data Scientist

Diagnose completed orders drop in Los Angeles

You are a data scientist at DoorDash supporting the consumer pricing team. The number of completed delivery orders in Los Angeles has dropped meaningf...

Analytics & ExperimentationMetric DiagnosticsUser Behavior & Funnels
20
0
173 people solved
Jan 25, 2026
PayPal logo
PayPal
Medium
Software Engineer

Detect memory leaks in C++

Detect memory leaks in C++ C++ Memory Leaks: Detection, Integration, and Prevention You are building or maintaining a C++ service/library and need a p...

Software Engineering Fundamentals
5
0
91 people solved
Aug 7, 2025
Pinterest logo
Pinterest
Medium
Data Scientist

Design Algorithm to Minimize Payments in Expense-Sharing App

Scenario Expense-sharing app needs to settle debts among friends after a trip. Question Given a list of transactions (payer, payee, amount), design an...

Coding & Algorithms
34
0
134 people solved
Jul 12, 2025
Amazon logo
Amazon
Medium
Product Manager

Messaging App Roadmap Call: Emoji Expression Features vs. Conversation History Backup

You are the product manager for a messaging app. Two features are competing for the next slot on the roadmap: emoticons that people can use in their c...

Product / Decision MakingPrioritization & Tradeoffs
0
0
6 people solved
Feb 17, 2026
Adobe logo
Adobe
Hard
Software Engineer

Design a multimodal embedding service

System Design: Multimodal Embedding Pipeline for Documents, Images, and Videos You are designing a production service that computes embeddings for use...

ML System DesignEmbeddings & Vector SearchDistributed Transactions & Idempotency
13
1
203 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Product Manager

Parking-Spot Finder on Google Maps

Product Design Prompt: Parking-Spot Finder Integrated with Google Maps Design a parking-spot finder feature integrated into Google Maps. Address: 1. T...

Product / Decision MakingProduct Design & ImprovementMetrics & KPIs
9
0
91 people solved
Jul 4, 2025
Instacart logo
Instacart
Medium
Data Scientist

Describe cross-functional collaboration under time pressure

Tell me about a time you led a cross-functional initiative with ambiguous requirements and severe time pressure. The interviewer asked generic or shif...

Behavioral & Leadership
6
0
79 people solved
Oct 13, 2025
Robinhood logo
Robinhood
Easy
Data Scientist

Design an experiment to launch fractional shares

Context You work on a brokerage/investing app. The team is considering launching fractional share trading (users can buy/sell fractions of a stock/ETF...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
11
0
105 people solved
Oct 1, 2025
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Solve sampling and streaming tasks

This question evaluates algorithmic problem-solving, data structure design, probabilistic reasoning for weighted random selection, sliding-window stri...

Coding & Algorithms
3
0
49 people solved
Sep 4, 2025
Instacart logo
Instacart
Hard
Data Scientist

Diagnose Sunday Miami same‑day outages

Marketplace stability case: same‑day disablement on Sunday afternoons (Miami) Context Instacart offers two fulfillment modes: - Same‑day delivery (rea...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
9
0
108 people solved
Oct 13, 2025
Tripadvisor logo
Tripadvisor
Medium
Software Engineer

Build blog UI with API data and likes

You are asked to implement a small single-page web application in JavaScript (you may use any modern framework or plain JavaScript) to display and int...

Coding & Algorithms
10
0
89 people solved
Nov 20, 2025
ByteDance logo
ByteDance
Medium
Senior SDE, Quality Platform & AI Test AutomationSenior+ Locked

Design an Agent-Orchestrated QA Pipeline from Requirements to Test Report

Design an agent-orchestrated QA pipeline that turns requirements into traceable test cases, data, scripts, execution evidence, and reports through typ...

ML System Design
1
0
25 people solved
Aug 10, 2026
Amazon logo
Amazon
Medium
Software Engineer

Find all pairs summing to target in sorted array

Given a non-decreasing array of integers nums and an integer target, return all unique pairs of indices (i, j) with i < j such that nums[i] + nums[j] ...

Coding & Algorithms
10
0
74 people solved
Sep 6, 2025
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Guesstimate: How Big Is the Amazon Prime Video Business?

You are asked for a back-of-the-envelope estimate of how big Amazon's Prime Video service is. Pick the measure you will report and justify it, build t...

Product / Decision MakingEstimation & Market Sizing
0
0
9 people solved
Dec 31, 2024
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Design a weapon-sale ad detection system

This question evaluates a candidate's competence in end-to-end machine learning system design, covering multimodal signal integration (text, images, b...

ML System DesignSupervised LearningAnnotation & Label Quality
16
0
154 people solved
Jan 5, 2026
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