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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
Razorpay logo
Razorpay
Medium
Product Manager

Zomato Product Sense: Discovering, Booking and Hosting Events in the App

You are a product manager at Zomato, the restaurant discovery and food delivery app, and you have been asked to design an Events feature for it. Walk ...

Product Design & StrategyProduct SenseGrowth & Monetization
1
0
10 people solved
Oct 30, 2025
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer II Locked

Reason About Concurrency, CAP Trade-Offs, and Kubernetes Scaling

Explain concurrency versus parallelism, make operation-level CAP choices during partitions, and design Kubernetes scaling that accounts for readiness,...

Software Engineering Fundamentals
3
0
26 people solved
Aug 8, 2026
Google logo
Google
Medium
Product Manager

Choosing Between a Bug Fix and a Feature Request Right After a Pilot Launch

You are the product manager for a product whose pilot has just gone live. Two pieces of work now compete for the team's time: a request for a new feat...

Product / Decision MakingPrioritization & Tradeoffs
0
0
10 people solved
Jan 17, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Discuss challenges and cross-functional collaboration

Question Tell me about your most challenging project. Walk me through it end to end and be ready to go deep on the technical and the organizational si...

Behavioral & LeadershipProject Deep DiveAmbiguity & Decision Making
12
0
183 people solved
Sep 6, 2025
Citadel logo
Citadel
Medium
Site Reliability Engineer

Solve Five Core Python Data-Processing Exercises

Solve Five Core Python Data-Processing Exercises Implement and explain: repeat a message n times with blank lines; square a list then reverse it; Fizz...

Software Engineering Fundamentals
7
0
51 people solved
May 8, 2026
Zomato logo
Zomato
Medium
Product Manager

Diagnose and Fix a Sudden Rise in Missing-Item Food Orders at Zomato

Zomato sees a sudden spike in food orders that reach customers incomplete, with one or more items missing. As the product manager, find out what is dr...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
1
0
9 people solved
Nov 21, 2025
Robinhood logo
Robinhood
Medium
Software EngineerSenior+ Locked

Give a Project Deep Dive Grounded in Personal Ownership

Walk through a technical project you worked on, from its goal and architecture to your own responsibilities. The question tests how clearly you explai...

Software Engineering FundamentalsProject Deep Dive
7
0
74 people solved
Sep 4, 2026
Carvana logo
Carvana
Easy
Software Engineer

Spell Out a Nonnegative Integer

Given a nonnegative integer, return its English words representation. Implement a function that handles numbers from 0 through 2,147,483,647 inclusive...

Coding & Algorithms
2
0
26 people solved
Apr 26, 2026
Pilot logo
Pilot
Easy
Software EngineerNew Grad

Solve Anagram Without Sorting

Given two strings s and t, return true if t is an anagram of s, and false otherwise. You may not sort either string. An anagram uses exactly the same ...

Coding & Algorithms
5
0
43 people solved
Jan 7, 2026
Ripple logo
Ripple
Hard
Software Engineer

Find path between two nodes in a binary tree

Problem Given a binary tree and two target nodes a and b, return the simple path from a to b (inclusive) as an ordered list of node values. - The path...

Coding & Algorithms
14
0
107 people solved
Nov 10, 2025
Anthropic logo
Anthropic
Medium
Machine Learning Engineer

Optimize MapReduce performance

Optimize MapReduce for Parallel Efficiency and Network Utilization You are designing a large-scale batch processing job (e.g., feature extraction, log...

System DesignBatch & Stream Processing
38
0
647 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Compute feed ad frequency and retention in SQL

Assume today is 2025-09-01. Schema and tiny samples: feed_impressions(impression_id, user_id, impression_time, content_type, feed_position, session_id...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
10
0
81 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Product Manager

DoorDash Metrics: Define a Marketplace North Star and Its Supporting Metric Set

Imagine you lead product for all of DoorDash. Choose the single north-star metric you would track for the company, define it precisely, and defend it ...

Analytics & ExperimentationMetrics & KPIs
0
0
8 people solved
Jun 5, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Count Distinct Values in a Huge Sorted Array

Count distinct values in a huge sorted random-access array without examining every element. Jump across equal-value runs with binary search to target ...

Coding & Algorithms
8
0
84 people solved
May 13, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Compute Differences Between Catalog Trees

You are given two rooted catalog trees. Each node has a unique string key among its siblings and an associated value. Compare the two trees and return...

Coding & AlgorithmsTrees
21
0
167 people solved
Sep 6, 2025
LinkedIn logo
LinkedIn
Hard
Data Scientist Locked

How to diagnose traffic and measure relevance?

This question evaluates a data scientist's skills in traffic diagnostics, instrumentation validation, user-path and navigation analysis, causal reason...

Analytics & Experimentation
4
0
76 people solved
Jan 21, 2026
Amazon logo
Amazon
Medium
Frontend Engineer Locked

Navigate a Tight Deadline and an Ambiguous Engineering Project

Prepare concrete engineering stories about delivering under a tight deadline and moving forward when key information was missing. The prompt focuses o...

Behavioral & Leadership
2
0
36 people solved
Jul 7, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Find longest substring without repeating characters

Problem Given a string s, return the length of the longest contiguous substring that contains no repeated characters. Input - s: a string (may contain...

Coding & AlgorithmsTwo Pointers & Sliding Window
5
0
102 people solved
Nov 25, 2025
Meta logo
Meta
Medium
Product Manager

Allocating Meta's messaging investment between WhatsApp and Messenger

Meta runs two messaging apps, WhatsApp and Messenger. As a product manager at Meta, explain how you would decide whether to put investment into WhatsA...

Product / Decision MakingProduct StrategyPrioritization & Tradeoffs
0
0
10 people solved
Sep 29, 2026
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Design Near-Real-Time Top Songs by Country

Design country-level top-ten song rankings from high-volume listen events with idempotent ingestion, ten-minute refreshes, replay, and low-latency rea...

System Design
2
0
27 people solved
Aug 24, 2026
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