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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
Meta logo
Meta
Medium
Product Manager

Picking Ranking Signals for Meta's Feed: Viewer, Relationship, Content and Context

Meta's News Feed orders the posts each person sees. What signals would you rely on to make that order more relevant to each person? `hint Sort signals...

Product Design & StrategyProduct Design & ImprovementRanking Models
0
0
5 people solved
Mar 18, 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
Coinbase logo
Coinbase
Hard
Software Engineer Locked

Implement banking, knapsack, and pagination tasks

This multi-part question evaluates stateful system design, ordered event processing and scheduling semantics for an in-memory banking command processo...

Coding & AlgorithmsLow-Level Design (OOP)Dynamic Programming
28
0
329 people solved
Jan 22, 2026
Ubs logo
Ubs
Medium
Data Scientist

Prepare responses to UBS behavioral and stock-pitch prompts

Prepare responses to UBS behavioral and stock-pitch prompts Prompt set (video / HireVue-style) You will answer the following prompts, typically under ...

Behavioral & LeadershipCommunication & StakeholdersAmbiguity & Decision Making
8
0
150 people solved
Jul 16, 2025
Meta logo
Meta
Medium
Product Manager

Improving the Email Facebook Sends When a User Is Tagged in a Photo

You are a product manager at Meta. When someone tags a Facebook user in a photo, Facebook can let that user know by email. How would you make this ema...

Product Design & StrategyProduct Design & Improvement
0
0
7 people solved
Oct 23, 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
Nextdoor logo
Nextdoor
Medium
Software Engineer Locked

Design a Job Scheduler That Can Scale by 100 Times

Design a job scheduler that initially serves a small workload but must later handle 100 times as many jobs. Connect requirements and APIs to data mode...

System Design
12
0
99 people solved
Aug 3, 2026
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
Mithril logo
Mithril
Medium
Software Engineer Locked

Determine Safe Bomb Defusal

This question evaluates competency in graph traversal, state-space search, reachability analysis, and handling safety constraints within finite state ...

Coding & Algorithms
1
0
25 people solved
May 18, 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
Amazon logo
Amazon
Hard
Software Engineer Locked

Design a cloud database write path and recovery

This question evaluates expertise in designing transactional write paths and crash recovery for cloud-native relational databases that separate comput...

System DesignDatabase InternalsConsensus & Replication
22
0
194 people solved
Jan 22, 2026
Hebbia logo
Hebbia
Medium
Software Engineer

Implement a Cache Snapshot Printer

Implement an LRU-style cache and a snapshot-printing feature. The cache stores key-value pairs and has a fixed capacity. It should support normal cach...

Coding & Algorithms
5
0
59 people solved
Feb 6, 2026
Upstart logo
Upstart
Hard
Data Scientist

Address Missing Income Bracket in California Housing Data

Address Missing Income Bracket in California Housing Data ML Case: Missing Lowest-Income Bracket in California Housing Data Context You're building a ...

Machine LearningSupervised LearningFeature Engineering
37
0
129 people solved
Aug 4, 2025
Meta logo
Meta
Easy
Analytics Engineer Locked

Detect fake accounts and measure their impact

This question evaluates competency in fraud detection, causal impact measurement, experimentation design, and operational analytics for product and ad...

Analytics & Experimentation
6
0
62 people solved
Feb 15, 2026
Waymo logo
Waymo
Medium
Frontend EngineerSenior+ Locked

Filter Matching Subtrees from an N-Ary Tree

Filter an n-ary tree by removing every node whose value contains a substring along with its full descendant subtree. Validate the flat index represent...

Coding & Algorithms
6
0
50 people solved
May 11, 2026
Flipkart logo
Flipkart
Medium
Product Manager

Diagnose a steady three-month rise in phone returns at Flipkart

You are the product manager who owns returns and cancellations at Flipkart, the Indian e-commerce marketplace. Over the last three months, returns in ...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
0
0
11 people solved
Dec 1, 2025
Uber logo
Uber
Medium
Product Manager

Uber Dispatch Trade-off: Simultaneous Offers to Nearby Drivers vs. One-at-a-Time Offers

Uber can tell drivers about a new ride request in one of two ways. It can alert every driver in the surrounding area at the same moment, or it can off...

Product / Decision MakingProduct SenseExperiment Design (A/B Testing)
0
0
8 people solved
Apr 23, 2026
Palantir logo
Palantir
Easy
Software Engineer

Merge Intervals With Decimal Endpoints and List the Gaps Between Them

You are given a list of closed intervals on the number line. Endpoints are not limited to integers: they may also be decimal numbers. First merge ever...

Coding & AlgorithmsIntervals & Scheduling
12
0
86 people solved
Oct 12, 2023
Amazon logo
Amazon
Medium
Data Scientist

Identify SQL Joins and Correct Query Errors

Winner +----+-------+ | ID | Name | +----+-------+ | 1 | Alice | | 2 | Bob | | 3 | Carol | +----+-------+ ​ Loser +----+-------+ | ID | Name | ...

Data Manipulation (SQL/Python)
95
0
424 people solved
Jul 12, 2025
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