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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
Citadel logo
Citadel
Medium
Software Engineer

Generate Prefix-Based Product Suggestions

Problem Given distinct lowercase product names and a lowercase search word, return suggestions after each typed character. For every non-empty prefix,...

Coding & Algorithms
4
0
79 people solved
May 4, 2026
Amazon logo
Amazon
Medium
Software Engineer

Solve two set and graph problems

Implement solutions for the following two data-structure / algorithm problems. --- Problem 1: Friend-purchase recommendations You are given three enti...

Coding & AlgorithmsGraphs
22
0
205 people solved
Oct 31, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Can two names match with ≤2 swaps?

You are given two restaurant names represented as strings s and t of equal length (same character set, case-sensitive). In one operation, you may swap...

Coding & AlgorithmsArrays & Strings
8
0
128 people solved
Jan 13, 2026
Swiggy logo
Swiggy
Medium
Product Manager

Launch plan for a slower, non-urgent delivery tier in Swiggy Instamart

You are a product manager on Instamart, Swiggy's quick-commerce service that delivers groceries and household essentials within minutes from small nei...

Product Design & StrategyRequirements & Launch ExecutionExperiment Design (A/B Testing)
0
0
12 people solved
Nov 8, 2025
Instacart logo
Instacart
Medium
Software Engineer

Simulate bus boarding with priority and wheelchairs

You are implementing a simplified bus boarding simulator. Model: - Person has at least: - id (string/int) - priority (boolean): if true, they shou...

Software Engineering FundamentalsSimulation & State MachinesTesting & Quality
29
0
266 people solved
Mar 4, 2026
Uber logo
Uber
Medium
Data Scientist Locked

Evaluate UberEATS priority delivery and membership

This question evaluates a data scientist's competency in pricing strategy, marketplace economics, causal experimentation, metric selection, and estima...

Analytics & ExperimentationExperiment Design (A/B Testing)Business Case Analysis
8
0
86 people solved
Feb 28, 2026
N2JSoft logo
N2JSoft
Medium
Product Manager

Phased Plan to Extend an Invoice Management Product into Purchase Requisitions

You own an existing invoice management system, the tool a finance team uses to receive, approve and pay vendor invoices. Lay out a roadmap for bringin...

Product Design & StrategyRoadmapping & PlanningProduct Strategy
0
0
7 people solved
Jan 14, 2026
Netflix logo
Netflix
Medium
Data Scientist

Identify Longest Consecutive Incrementing Watch-Time Sequence

Scenario A streaming platform records daily minutes watched per user and wants to identify engagement streaks. Question Given an unsorted integer arra...

Coding & Algorithms
24
0
126 people solved
Jul 12, 2025
Google logo
Google
Medium
Software Engineer Locked

Answer range queries for alternating parity subarrays

This question evaluates understanding of array manipulation, parity properties, efficient range-query processing, and preprocessing techniques for han...

Coding & AlgorithmsArrays & Strings
7
0
119 people solved
Jan 6, 2026
Roblox logo
Roblox
Medium
Product Manager

Keeping Roblox Players Safe in Direct Messages: Contact Rules, Detection, Reporting

You are a product manager at Roblox, where players can send each other private messages. How would you build safety features into that messaging, and ...

Product Design & StrategyTrust & SafetyMetrics & KPIs
0
0
9 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Software Engineer

Answer core Meta behavioral questions

You are in a behavioral interview for a software engineering role. Answer the following questions with concrete examples from your experience (interns...

Behavioral & LeadershipAmbiguity & Decision MakingConflict & Collaboration
17
0
128 people solved
Jan 22, 2026
Salesforce logo
Salesforce
Medium
Software EngineerSenior+

Hiring Manager Round: Current Work, Motivation for Salesforce and Keeping Up with AI

This hiring-manager conversation covers your current work, why you want to move, and how you keep your skills current. It is conversational, but each ...

Behavioral & LeadershipMotivation & FitProject Deep Dive
1
0
13 people solved
May 6, 2026
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Implement common data-structure and JS tasks

This multi-part prompt evaluates core competencies in data structures and algorithms (time-based key-value design, duplicate removal in sorted linked ...

Coding & AlgorithmsData Structure DesignJavaScript & TypeScript
15
0
199 people solved
Feb 12, 2026
EY logo
EY
Medium
Data Scientist

Architect cloud data ingestion patterns

Propose a cloud data ingestion and serving pattern for streaming and batch on your preferred cloud (AWS/Azure/GCP). Choose between CDC, event sourcing...

Data Manipulation (SQL/Python)Data Ingestion & CDCBatch & Stream Processing
7
0
58 people solved
Oct 13, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Reverse Nodes in Groups of K

This question evaluates a candidate's ability to manipulate linked list pointers in place, handling in-group reversal while preserving overall structu...

Coding & Algorithms
2
0
34 people solved
Jun 18, 2026
Uber logo
Uber
Easy
Data ScientistIntern

Analyze the Accident-Rate Spike

A monthly line chart shows the accident rate for Uber trips in one city. The accident rate increases sharply from June through November, then drops qu...

Statistics & MathMetric DiagnosticsData Quality & Validation
18
0
145 people solved
Feb 12, 2026
Microsoft logo
Microsoft
Medium
Product Manager

Help Microsoft Teams Users Find Messages, Files and People Faster, and Measure It

You are the product manager responsible for search in Microsoft Teams, which covers how people find messages, files, people and other content across t...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
11 people solved
Apr 16, 2026
SoFi logo
SoFi
Medium
Software Engineer

Explain GC, singleton, and OOP principles

Answer the following Java/software-engineering fundamentals questions: 1. How does Java garbage collection work at a high level (generational GC, mark...

Software Engineering FundamentalsMemory ManagementLow-Level Design (OOP)
12
0
136 people solved
Feb 4, 2026
Google logo
Google
Medium
Software Engineer Locked

Solve several coding interview problems

This set of problems evaluates proficiency in string processing and combinatorial parsing, arbitrary-precision arithmetic using string representations...

Coding & AlgorithmsBacktracking & RecursionArrays & Strings
18
0
177 people solved
Mar 4, 2026
Amazon logo
Amazon
Hard
Software Engineer Locked

Build a Searchable Sentence Index

This question evaluates a candidate's ability to design and implement in-memory text indexes and related data structures, covering inverted indexing, ...

Coding & Algorithms
3
0
39 people solved
May 11, 2026
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