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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
Netflix logo
Netflix
Medium
Machine Learning Engineer

Transform flat keys into nested dictionary

You are given a flat collection of parameter keys like ['layer1.attention.q_proj.weight', 'layer1.attention.k_proj.weight', 'layer1.mlp.fc1.weight', ....

Data Manipulation (SQL/Python)Arrays & StringsData Cleaning & Wrangling
10
0
178 people solved
Aug 13, 2025
Meta logo
Meta
Medium
Product Manager

Product Sense: Designing a Real Estate Investing Product, From Investor Segment to MVP

Design a new product that helps people invest in real estate. Explain who the product is for, which problems it solves for them, what the first versio...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
6 people solved
Feb 16, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Easy
Data Scientist

Compute stockout sufficiency probability

Probability That Muffins Suffice Setup - Each of the 5 remaining customers independently chooses one item: - Croissant with probability 0.7 - Muff...

Statistics & MathProbability
8
0
139 people solved
Aug 11, 2025
OpenAI logo
OpenAI
Medium
Software Engineer

Design Slack-like messaging platform

Design a Slack-like team collaboration product. Core features: - Workspaces (tenants), users, and channels (public/private) - Direct messages (1:1 and...

System DesignReal-Time SystemsMessaging & Event-Driven
18
0
142 people solved
Oct 31, 2025
Amazon logo
Amazon
Medium
Software EngineerIntern Locked

Find minimum total range-increment to sort

This question evaluates algorithmic problem-solving skills in array manipulation and optimization, focusing on reasoning about range-increment operati...

Coding & Algorithms
10
0
90 people solved
Jan 6, 2026
Amazon logo
Amazon
Medium
Data ScientistSenior+

Transform event logs with subscription windows in pandas

Using pandas, compute user-level subscription-aligned revenue and anomalies for September 2025. DataFrames: events(user_id:int, ts:UTC datetime, event...

Data Manipulation (SQL/Python)
2
0
36 people solved
Oct 13, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Product Design Case: A Trip Planner for Parents, Kids and Grandparents Traveling Together

You are a product manager asked to design a new travel app built for families. Explain who you would build it for, what goes wrong for them when they ...

Product Design & StrategyProduct SensePrioritization & Tradeoffs
0
0
10 people solved
Jul 21, 2026
Google logo
Google
Medium
Product Manager

Owning a Product Decision That Left You Deeply Upset: Impact and Lessons

Describe a moment from your product work, something you yourself did or decided, that left you genuinely sad. What happened, and what did you take fro...

Behavioral & LeadershipFailure & Learning
0
0
5 people solved
Jul 17, 2026
Snapchat logo
Snapchat
Medium
Software Engineer

How do you deliver when time is tight?

Scenario You are assigned a project with an aggressive deadline and limited time/resources. Question How would you ensure the project gets delivered o...

Behavioral & LeadershipOwnership & ExecutionPrioritization & Tradeoffs
16
0
131 people solved
Jan 10, 2026
Capital One logo
Capital One
Medium
Data Scientist

Show help, mistake recovery, and achievement

Behavioral & Leadership (Technical Screen) Answer all three parts below with concrete metrics, trade-offs, and decision rationale. Assume a Data Scien...

Behavioral & Leadership
6
0
76 people solved
Oct 13, 2025
Google logo
Google
Easy
Software Engineer

Find right-side view of binary tree

You are given the root of a binary tree. From the right side of the tree, at each depth you can see exactly one node: the rightmost node at that depth...

Coding & AlgorithmsTrees
10
0
124 people solved
Nov 1, 2025
Disney logo
Disney
Medium
Product Manager

Which stakeholders you work best with as a PM, and how you handle the rest

Which kind of stakeholder do you most enjoy working with, and why? `hint Define the type by behavior Describe the stakeholder by how they work with yo...

Behavioral & LeadershipCommunication & StakeholdersConflict & Collaboration
0
0
6 people solved
Feb 8, 2026
Dropbox logo
Dropbox
Medium
Software Engineer Locked

Scale a file-crawling API using async jobs

This question evaluates a candidate's ability to design scalable, fault-tolerant systems for long-running file-crawl operations, including async job o...

System DesignSystem Design FundamentalsAPI Design
17
1
156 people solved
Jan 22, 2026
Snowflake logo
Snowflake
Hard
Data Scientist

Decide and justify product metrics amid trade-offs

Smart Sort Feed Ranking: Metrics, Experiment, Decisions, and Monitoring Context: You are introducing a new Smart Sort ranking for a content feed. It s...

Analytics & Experimentation
7
0
64 people solved
Oct 13, 2025
Microsoft logo
Microsoft
Medium
Product Manager

File ingestion system that never drops or double-processes a file

You are a product manager partnering with engineering on a service that takes in files and processes them. Design the processing pipeline so that it i...

System DesignTechnical Tradeoffs for PMsData Quality & Validation
1
0
11 people solved
Sep 6, 2025
OpenAI logo
OpenAI
Medium
Software Engineer

Parse and build binary data in Python

Using provided interfaces ByteReader(read(n), read_uint32_le, read_string) and ByteWriter(write(b), write_uint32_le, write_string), implement function...

Data Manipulation (SQL/Python)Parsing & Interpreters
26
1
237 people solved
Sep 6, 2025
Oracle logo
Oracle
Medium
Data Scientist

Count Interior Islands After Flooding

You are given an m x n binary grid representing land and water. - 1 = land - 0 = water An island is a maximal group of land cells connected 4-directio...

Coding & Algorithms
5
0
70 people solved
Jan 9, 2026
Meta logo
Meta
Medium
Data Scientist

Define and compute shop visibility in SQL

You own the 'shop visibility' KPI for a marketplace. Define a precise metric and write SQL to compute it over the last 7 days (use today = 2025-09-01,...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
8
0
88 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Teleporter Product Design and Phased Market Rollout Plan

Your company has built a working teleporter. Treat it as a product launch: describe what the teleporter looks like and how it would be used, then expl...

Product Design & StrategyProduct SenseRequirements & Launch Execution
0
0
13 people solved
Jan 21, 2026
TikTok logo
TikTok
Medium
Software Engineer

Compute pipeline order from dependencies

You are given a set of pipelines and a list of directed dependency pairs (A, B) meaning pipeline A depends on pipeline B and therefore B must run befo...

Coding & Algorithms
12
0
89 people solved
Sep 6, 2025
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