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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
Anthropic logo
Anthropic
Medium
Software EngineerSenior+ Locked

Discuss Ethical Judgment and Unwanted Work

This behavioral interview question evaluates self-awareness, ethical judgment, and the ability to influence peers without relying on authority — core ...

Behavioral & LeadershipEthics & ResponsibilityLeadership & Influence
87
0
610 people solved
Jun 14, 2026
Salesforce logo
Salesforce
Medium
Software EngineerSenior+

Design a tenant-isolated system to replicate large recordings to per-customer data centers

You are in a senior system design round. Design a system that moves large files, such as call recordings, from the data center where they are produced...

System DesignFile & Media StorageDistributed Transactions & Idempotency
2
0
20 people solved
Aug 8, 2026
Tradedesk logo
Tradedesk
Medium
Software Engineer Locked

Fetch and Cache Daily Stock Prices Across a Date Range

Implement a Python date-range client that fetches daily opening and closing prices from a documented HTTP service. The solution covers strict parsing,...

Software Engineering Fundamentals
3
0
23 people solved
Aug 31, 2026
Valon logo
Valon
Medium
Software Engineer

Build a staged banking service: ATM cash, statements, transfers, fees, slow transfers

Build a banking service in five parts, adding one capability per part. Each part comes with a sample input file of actions and the expected output, an...

Software Engineering FundamentalsLow-Level Design (OOP)Payments & Ledgers
4
0
76 people solved
Jan 16, 2026
Google logo
GoogleBloombergAmazon

Also asked at Amazon, Meta, Microsoft, TikTok, Airbnb

Medium
Software Engineer

Find a Digit in the Concatenated Positive Integers

Find a Digit in the Concatenated Positive Integers Write the positive integers consecutively in decimal: `text 123456789101112131415... ` Given n, ret...

Coding & AlgorithmsMath & Number Theory
0
0
8 people solved
Google logo
GoogleDoorDashAmazon

Also asked at Amazon, Meta, Uber, Capital One, Microsoft, Snowflake, Coinbase

Medium
Software Engineer

Create and Query Hierarchical Path Values

Problem Implement FileSystem. A valid path is one or more segments, each a slash followed by one or more lowercase letters; empty strings and / alone ...

Coding & AlgorithmsData Structure DesignArrays & Strings
1
0
12 people solved
Reddit logo
Reddit
Medium
Backend Engineer

Design Tennis Scoring with Pluggable Rules

Design Tennis Scoring with Pluggable Rules Prompt Design a small scoring component for one tennis game between two players. It must record which playe...

Software Engineering Fundamentals
11
0
116 people solved
May 6, 2026
Capital One logo
Capital One
Medium
Software EngineerNew Grad

Answer motivation and teamwork questions

You are in a behavioral interview for an entry-level software role. Answer the following prompts: 1. Why did you choose to study Computer Science? 2. ...

Behavioral & LeadershipMotivation & FitConflict & Collaboration
23
0
190 people solved
Jan 22, 2026
Generalmotors logo
Generalmotors
Medium
Software EngineerSenior+ Locked

Diagnose N+1 Queries and Design a Correct Service Cache

Explain N+1 query patterns, joins and batch fetching, cache keys, freshness, stampede control, and end-to-end performance validation.

Software Engineering FundamentalsIndexing & Query PerformanceCaching
4
0
46 people solved
Aug 30, 2026
Google logo
Google
Medium
Product Manager

Designing and launching an end-of-year photo highlights recap in Google Photos

You are a product manager on Google Photos, and the team wants a Yearly Recap: a personalized look back at each user's photos and videos from the past...

Product Design & StrategyProduct Design & ImprovementRequirements & Launch Execution
1
0
9 people solved
Aug 27, 2026
Voleon logo
Voleon
Easy
Data Scientist Locked

Analyze a Regression Dataset and Build a Safe File-Processing Utility

A combined data-analysis and Python engineering interview. Candidates must diagnose a regression dataset, choose suitable validation and metrics, then...

Data Manipulation (SQL/Python)Regression & Statistical ModelingFeature Engineering
9
1
181 people solved
Jun 1, 2026
Roblox logo
Roblox
Medium
Data Scientist

Choose best/worst actions under OA pressure

Behavioral Scenario: Time-Boxed OA With Hidden Test Failure Context You are a data scientist candidate 70 minutes into a 90-minute online assessment (...

Behavioral & LeadershipEthics & ResponsibilityTesting & Quality
10
0
194 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Google Photos Annual Recap: Diagnose Weak Spots and Prioritize Improvements

You are a product manager on Google Photos. The app builds a recap that looks back on a user's year through their photos and videos. How would you mak...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
9 people solved
Oct 2, 2026
Glean logo
Glean
Hard
Software Engineer

Search Words in a Character Grid

You are given a 2D grid board of lowercase English letters with m rows and n columns. A word can be constructed from letters of sequentially adjacent ...

Coding & AlgorithmsBacktracking & RecursionGrids & Matrices
12
0
235 people solved
Apr 15, 2026
Groww logo
GrowwGoogleAmazon

Also asked at Amazon, Bloomberg, Snowflake, Microsoft, TCS

Hard
Software Engineer

Choose Valuable Events with an Attendance Limit

Problem Each event in events is [startDay,endDay,value]. Attending earns its value but occupies every day from startDay through endDay, inclusive. Att...

Coding & AlgorithmsDynamic ProgrammingIntervals & Scheduling
1
0
12 people solved
Waymo logo
Waymo
Medium
Data Scientist

Assess Routing Experiment Validity

A ride-hailing team runs an A/B test in San Francisco in July 2024 for a new routing algorithm intended to reduce time to pickup, abbreviated TTP. You...

Statistics & MathExperiment Analysis & ReadoutHypothesis Testing
55
3
455 people solved
Mar 7, 2026
Uber logo
Uber
Medium
Software Engineer

Solve Prime Jumps and Pipeline Scaling

An online assessment contains two independent coding problems. Solve both. Problem 1: Prime-Constrained Score Jump You are given an integer array scor...

Coding & Algorithms
14
0
140 people solved
Jan 30, 2026
DoorDash logo
DoorDash
Hard
Data Scientist

Design and analyze a switchback experiment

Design and Analyze a Switchback Experiment: Reducing Cold-Food Incidents for Bike Couriers You are a data scientist on a delivery-marketplace team. A ...

Analytics & ExperimentationExperiment Design (A/B Testing)Experiment Analysis & Readout
77
0
520 people solved
Oct 13, 2025
Whatnot logo
Whatnot
Medium
Software Engineer Locked

Dot Product of Two Vectors (Dense, then Sparse)

This question assesses proficiency in array manipulation and algorithmic efficiency by asking for a vector dot product, first over dense arrays and th...

Coding & Algorithms
16
0
119 people solved
Jun 11, 2026
Airbnb logo
Airbnb
Hard
Software EngineerSenior+

How do you conduct a code review exercise?

In a live interview, you are shown a short code change — a diff, a pull request, or a standalone function — and asked to produce written code review c...

Software Engineering FundamentalsCode Quality & Maintainability
30
0
538 people solved
Jan 19, 2026
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