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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.1k
Companies
579
Updated
10.10.2026
12.1k Questions 579 Companies10.10.2026
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
Google logo
Google
Hard
Software Engineer

Scale median under memory constraints

Scale median under memory constraints Design a Scalable Streaming Median Service Under Memory Constraints Context You are building a service that cons...

System DesignSystem Design FundamentalsBatch & Stream Processing
10
0
89 people solved
Aug 8, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Set Boundaries and Priorities in a High-Intensity Environment

Explain how you maintain quality and sustainable boundaries in a high-intensity team while deciding when extra effort is justified. Distinguish true i...

Behavioral & Leadership
1
0
14 people solved
May 22, 2026
Amazon logo
Amazon
Medium
Software Engineer

Maximize credits with limited skips

You are given n warehouses with inventories inventory[0..n-1], and two dispatch amounts: you dispatch dispatch1 units first each turn, then your co-wo...

Coding & Algorithms
4
0
45 people solved
Sep 6, 2025
Snapchat logo
Snapchat
Hard
Software Engineer

Design ride-hailing and price alert systems

During a system design interview, you are asked two related but separate design questions. Treat each as an independent end-to-end design; you will be...

System Design
3
0
71 people solved
Oct 28, 2025
Amazon logo
Amazon
Hard
Data Scientist

Estimate live sports impact on subscriptions

Estimate the Causal Impact of Live Sports on Prime Subscriptions and Engagement Context Amazon is considering adding live broadcasts of selected sport...

Analytics & Experimentation
3
0
59 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Software Engineer

Tell about a past project and impact

Tell about a past project and impact Behavioral: Past Project Deep Dive You are in a Software Engineer onsite interview. Share a past project you led ...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
17
0
155 people solved
Jul 15, 2025
Imc logo
Imc
Medium
Data Scientist Locked

Choose optimal posted price under adverse selection

This question evaluates probabilistic reasoning, Bayesian updating, expected-value optimization under asymmetric information, and basic mechanism-desi...

Machine Learning
3
0
68 people solved
Jan 14, 2026
Roblox logo
Roblox
Hard
Data Scientist

Demonstrate fit with quantified stories and motivations

Behavioral & Leadership Technical Screen Prompt (Data Scientist) Provide two stories—one professional and one personal—that demonstrate you’re a stron...

Behavioral & Leadership
6
0
63 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Software Engineer

Respond to negative feedback and exceed requirements

Respond to negative feedback and exceed requirements Behavioral Question: Negative Feedback and Going Beyond Requirements Context: Software Engineer —...

Behavioral & Leadership
8
0
60 people solved
Jul 31, 2025
Meta logo
Meta
Medium
Data Scientist

Posts and Replies Engagement

Posts and Replies Engagement A content platform stores user-generated posts and the replies that those posts receive. You need to answer two questions...

Data Manipulation (SQL/Python)
1
0
15 people solved
Feb 1, 2026
Microsoft logo
Microsoft
Hard
Software Engineer

Design an image upload/download service

System Design: Image Upload and Download Service Context Design a production-grade image service used by web and mobile clients. The service must supp...

System DesignFile & Media StorageAPI Design
14
0
117 people solved
Sep 6, 2025
eBay logo
eBay
Medium
Software Engineer

Count Connected Land Regions

You are given an m x n 2D grid representing a map. Each cell is either land ('1') or water ('0'). A land region is formed by connecting adjacent land ...

Coding & Algorithms
4
0
28 people solved
Jan 27, 2026
Salesforce logo
Salesforce
Medium
Software Engineer

Generate Every Generalized Abbreviation of a Word

Problem Generate every valid generalized abbreviation of a lowercase word. Each character may either remain literal or be included in a positive skip ...

Coding & Algorithms
1
0
21 people solved
Apr 11, 2026
Snowflake logo
Snowflake
Medium
Data Scientist

Describe navigating ambiguous, repetitive questioning

Behavioral: Handling Repeated, "Fishing" Questions Context: You're a Data Scientist in a technical screen or stakeholder review. The other person keep...

Behavioral & LeadershipCommunication & StakeholdersAmbiguity & Decision Making
8
0
94 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer

Answer four string/array/battery coding questions

You are given four independent coding questions. Problem A — Uppercase vs lowercase count difference Given a string s (ASCII), count how many characte...

Coding & Algorithms
6
0
63 people solved
Dec 16, 2025
Amazon logo
Amazon
Medium
Data Scientist

Compute daily work hours from in/out events

Given punch events, compute each employee’s daily hours, handling unmatched events and overnight shifts. Write SQL over: events(employee_id INT, evt_t...

Data Manipulation (SQL/Python)
2
0
21 people solved
Oct 13, 2025
Snowflake logo
Snowflake
Medium
Data Scientist

Design an analytic warehouse for event data

Design a warehouse-ready analytics data model and ingestion plan to support cohort retention, ARPU, and product-case analyses at scale (50M events/day...

Data Manipulation (SQL/Python)
1
0
16 people solved
Oct 13, 2025
Boston Consulting Group logo
Boston Consulting Group
Medium
Data Scientist

Analyze Python Functions: Improve Readability and Efficiency

Analyze Python Functions: Improve Readability and Efficiency Scenario Zoom interview code-review segment: interviewer shares three short Python functi...

Coding & AlgorithmsCode Quality & MaintainabilityProgramming Languages
6
0
88 people solved
Aug 4, 2025
Uber logo
Uber
Hard
Software Engineer

Implement three interview-style coding tasks

You are given three separate coding tasks, all focused on algorithm and data-structure design. --- Task 1: Longest Bounded-Difference Subarray You are...

Coding & AlgorithmsTwo Pointers & Sliding WindowData Structure Design
17
0
146 people solved
Nov 11, 2025
Meta logo
Meta
Medium
Data Engineer

Write SQL and Python for data prep

Given clickstream events (user_id, event_type, ts, properties) and a users table (user_id, signup_ts, plan), write SQL to compute DAU/WAU/MAU, D1/W1 r...

Data Manipulation (SQL/Python)
3
1
27 people solved
Jul 15, 2025
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