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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
OneMain Financial logo
OneMain Financial
Medium
Data Scientist

Determine Optimal Marketing Budget Allocation for Maximum Profit

Determine Optimal Marketing Budget Allocation for Maximum Profit Budget Allocation Across Acquisition Channels Context You are given an Excel sheet wi...

Analytics & Experimentation
95
0
300 people solved
Aug 4, 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
21
0
268 people solved
Jul 28, 2025
IBM logo
IBM
Medium
Product Manager

PM behavioral: owning a work failure and what you changed afterwards

Describe a failure from your working life: what went wrong, which part of it was yours, and what you did afterwards. `hint Pick a real miss Choose an ...

Behavioral & LeadershipFailure & LearningOwnership & Execution
0
0
7 people solved
Dec 8, 2023
Apple logo
Apple
Medium
Product Manager

Behavioral: Turning User Feedback Into a Shipped App Improvement

You are interviewing for a product manager role at Apple. Describe a specific time when what users told you about an app you were responsible for led ...

Behavioral & LeadershipUser Research & DiscoveryOwnership & Execution
0
0
8 people solved
Jul 6, 2025
LinkedIn logo
LinkedIn
Medium
Product Manager

Strategy to Convert More LinkedIn Members Into Paying Subscribers

You are a product manager at LinkedIn. How would you grow the number of members who pay for a LinkedIn subscription? Explain which paid offerings and ...

Product Design & StrategyGrowth & Monetization
1
0
8 people solved
Aug 2, 2024
MathWorks logo
MathWorks
Medium
Software Engineer

Calculate cost from orders with SQL

You have two tables: orders(order_id INT, user_id INT, order_date DATE, quantity INT, unit_price DECIMAL, coupon_code VARCHAR) and coupons(code VARCHA...

Data Manipulation (SQL/Python)
2
0
36 people solved
Sep 6, 2025
Airbnb logo
Airbnb
Medium
Software Engineer Locked

Design a banking ledger for deposits/withdrawals

This question evaluates a candidate's competency in monetary data modeling, concurrency control, idempotency, and maintaining transactional correctnes...

Software Engineering FundamentalsLow-Level Design (OOP)
31
0
285 people solved
Feb 11, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer Locked

Solve sliding-window, flattening, decode, and O(1) random set

This multi-part question evaluates competence in string processing and nested parsing, linked-list flattening and recursion depth management, dynamic ...

Coding & AlgorithmsTwo Pointers & Sliding WindowData Structure Design
12
0
141 people solved
Feb 4, 2026
Talroo logo
Talroo
Medium
Software Engineer

Calculate area, flush probability, egg drops

Question Given two quarter-circles inside a 1×1 square (centers at bottom-left and top-right corners), find the exact area of their overlapping region...

Coding & Algorithms
88
0
341 people solved
Jul 29, 2025
OPPO logo
OPPO
Medium
Data Engineer

Walk through resume and project highlights

Resume Walkthrough — Data Engineer Technical Screen Context You are interviewing for a Data Engineer role. The interviewer wants a concise, impact-foc...

Behavioral & Leadership
9
0
94 people solved
Aug 14, 2025
BitGo logo
BitGo
Medium
Software Engineer

Explain your most impactful project end-to-end

End-to-End Project Deep Dive (Behavioral) Walk through one recent, high-impact project you led or contributed to end-to-end. Cover the following: 1. P...

Behavioral & Leadership
3
0
59 people solved
Aug 12, 2025
Apple logo
Apple
Medium
Product Manager

Relational vs NoSQL Databases: Data Models, Consistency and Scaling

Explain how relational (SQL) databases differ from NoSQL databases. `hint Go past the label "Relational versus non-relational" is only the starting po...

Software Engineering FundamentalsTechnical Tradeoffs for PMsStorage & Sharding
0
0
6 people solved
Sep 7, 2024
InVision logo
InVision
Medium
Product Manager

InVision Usage Investigation: Root-Causing a 35% Decline

You are a product manager at InVision, the platform designers use to build and share interactive prototypes and collect feedback on them. Usage has fa...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
0
0
4 people solved
Dec 23, 2024
Google logo
Google
Hard
Data Scientist Locked

Model Soccer Shot Conversion

This question evaluates probabilistic predictive modeling, spatial-temporal feature engineering, model calibration and evaluation, and identification ...

Machine LearningSupervised LearningFeature Engineering
12
0
167 people solved
Dec 29, 2025
Uber logo
Uber
Medium
Product Manager

Session Lengths by Country: Long-Session Average, 5-Minute Histogram, Similar Pairs

You have a table of user sessions with one row per session and two columns: | Column | Meaning | |---|---| | country | The user's country | | session_...

Data Manipulation (SQL/Python)SQLPandas & Python Data
0
0
7 people solved
Feb 17, 2025
Amazon logo
Amazon
Medium
Applied Scientist

Describe a high-stakes project you owned

Describe a high-stakes project you owned Behavioral: End-to-End Ownership Under Ambiguity You are interviewing for a Machine Learning Engineer role. U...

Behavioral & Leadership
7
0
84 people solved
Jul 17, 2025
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Explain hash map internals and edge cases

You are asked a “knowledge check” about hash maps (hash tables). Discuss how a typical in-memory hash map works and how you would reason about these e...

Software Engineering Fundamentals
9
0
77 people solved
Dec 17, 2025
DoorDash logo
DoorDash
Hard
Software Engineer

Design an async donation payment platform

System Design: Online Donation Platform for a 3-Day Campaign Context You are designing a donation platform for a time-bounded, high-traffic, three-day...

System Design
12
0
95 people solved
Sep 6, 2025
Wipro logo
Wipro
Medium
Product Manager

Behavioral: Describing How You Lead and Develop a Product Team

How would you describe the way you manage a team? Explain how you lead the people you work with, and give examples that show the style in action. `hin...

Behavioral & LeadershipLeadership & InfluenceMentoring & Team Growth
0
0
5 people solved
Apr 19, 2025
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
9
0
107 people solved
Oct 13, 2025
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