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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
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
Anthropic logo
Anthropic
Medium
Software Engineer

Implement crawler, dedup, and persistent LRU

Implement crawler, dedup, and persistent LRU LeetCode 1236. Web Crawler: Crawl web pages starting from a given URL within the same hostname. LeetCode ...

Coding & AlgorithmsData Structure Design
134
0
926 people solved
Aug 4, 2025
eBay logo
eBay
Medium
Data AnalystIntern Locked

Diagnose Declining Email Click-Through Rate

This question evaluates a data analyst's competency in metric definition and validation, funnel-based diagnostics, segmentation analysis, distinguishi...

Analytics & ExperimentationMetric DiagnosticsUser Behavior & Funnels
30
0
209 people solved
May 28, 2026
Point72 logo
Point72
Medium
Data Scientist Locked

Explain How L1 and L2 Regularization Change Linear-Model Coefficients

Review a machine learning interview question comparing ordinary least squares with L1 and L2 regularization. The prompt focuses on coefficient behavio...

Machine LearningRegression & Statistical ModelingML Fundamentals
7
0
93 people solved
Jun 12, 2026
Google logo
Google
Medium
Machine Learning Engineer Locked

Compute sum over consecutive-step subarrays

This question evaluates proficiency in array processing, detection of consecutive-step arithmetic sequences, and accumulation of subarray sums with at...

Coding & AlgorithmsArrays & Strings
14
1
116 people solved
Feb 8, 2026
Stripe logo
Stripe
Medium
Software Engineer

Compute costs with validation and sorting in Python

Implement a three-part Python task to compute costs for purchase line items. Part 1: Write compute_cost(line_items, price_db) where line_items is a li...

Data Manipulation (SQL/Python)
8
0
67 people solved
Sep 6, 2025
Applied Intuition logo
Applied Intuition
Medium
Software Engineer

Design a coupon pricing engine

Design and implement a coupon application engine for a shopping cart. Each Item has id, category, and unitPrice. A Coupon has: applicableCategories (o...

Coding & AlgorithmsLow-Level Design (OOP)
14
1
190 people solved
Sep 6, 2025
Moody's logo
Moody's
Medium
Software Engineer Locked

Design a Product Inventory and Pricing Service

Design a read-heavy product, price, and inventory service that remains fast for browsing without weakening checkout correctness. The exercise compares...

System Design
2
0
25 people solved
Jul 25, 2026
Qube Research & Technologies logo
Qube Research & Technologies
Hard
Software Engineer Locked

Compute expected days until no whole pills

This question evaluates understanding of probability and expected value, modeling of state-based stochastic processes (Markov chains), and the ability...

Coding & Algorithms
7
0
74 people solved
Jan 15, 2026
Apple logo
Apple
Hard
Software EngineerNew Grad Locked

Design a smartwatch sensor subsystem

This question evaluates system-level engineering skills for designing a smartwatch sensing subsystem, including sensor selection, trade-offs among acc...

System DesignDebugging
25
1
213 people solved
Feb 25, 2026
Earnin logo
Earnin
Medium
Data AnalystSenior+

Resolve a Cross-Functional Data Disagreement

The source reported repeated questions about cross-functional collaboration in a senior-level hiring-manager screen, but not their exact wording. Use ...

Behavioral & Leadership
2
0
35 people solved
Apr 20, 2026
ByteDance logo
ByteDance
Medium
Site Reliability Engineer Locked

How would you troubleshoot Linux services?

This question evaluates proficiency in Linux system administration and site reliability engineering tasks—specifically troubleshooting disk-full condi...

Software Engineering FundamentalsReliability & SREOperating Systems
14
0
102 people solved
Jan 22, 2026
Optiver logo
Optiver
Medium
Software Engineer

Estimate expected comparisons in a BST

Estimate expected comparisons in a BST In a particular binary search tree, finding node A takes 1 comparison and finding node D takes 3 comparisons. W...

Coding & AlgorithmsTreesProbability
20
0
168 people solved
Jul 17, 2025
Rippling logo
Rippling
Medium
Software Engineer

Design an ad-click aggregation and enrichment pipeline

Scenario You are designing a data platform to measure advertising performance. Mobile apps and web browsers send ad impression and ad click events. An...

System DesignAds SystemsBatch & Stream Processing
28
0
257 people solved
Oct 17, 2025
Walmart Labs logo
Walmart Labs
Easy
Software EngineerSenior+

Merge two sorted arrays in-place

You are given two integer arrays sorted in non-decreasing order, and two integers m and n: - nums1 has length m + n. The first m elements of nums1 con...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
11
0
105 people solved
Dec 9, 2025
Waymo logo
Waymo
Medium
Software Engineer Locked

Design a Real-Time Player Matchmaking Service

Design a real-time player matchmaking service with join, cancel, expiration, compatibility matching, and notification flows. Define safe request state...

System DesignMultiplayer Game SystemsDistributed Coordination
7
0
67 people solved
May 13, 2026
Robinhood logo
Robinhood
Medium
Software Engineer Locked

Compute dependency load factors in a DAG

This question evaluates understanding of graph theory and algorithms, specifically reachability and dependency analysis in a directed acyclic graph, a...

Coding & AlgorithmsGraphs
12
1
236 people solved
Feb 12, 2026
Amazon logo
Amazon
Medium
Frontend EngineerNew Grad Locked

Format a Forest of Nested Comments

Format an arbitrarily ordered forest of comments as deterministic preorder trees while preserving sibling order and drawing correct continuation and f...

Coding & Algorithms
4
0
45 people solved
Aug 22, 2026
Airbnb logo
Airbnb
Medium
Software Engineer

Design an extensible request Retryer

Problem You are building a small library component called a Retryer that wraps an operation (typically a network call) and retries it on failure. Requ...

Software Engineering FundamentalsLow-Level Design (OOP)Code Quality & Maintainability
8
0
150 people solved
Oct 13, 2025
SIG (Susquehanna) logo
SIG (Susquehanna)
Medium
Data Scientist Locked

Compute bus-on-time and dice-sum probabilities

This question evaluates understanding of probability concepts including a continuous uniform waiting-time model for bus arrivals and discrete outcome ...

Coding & Algorithms
11
0
89 people solved
Jan 22, 2026
Trexquant logo
Trexquant
Medium
Software Engineer

Streaming Median Tracker

Streaming Median Tracker Design a data structure that ingests integers one at a time from a stream and can report the median of every integer inserted...

Coding & Algorithms
2
0
36 people solved
Feb 26, 2026
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