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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
Apple logo
Apple
Medium
Product Manager

Apple Wallet Product Improvement: Choosing a Segment and Prioritizing New Features

You are a product manager on Apple Wallet, the app on iPhone and Apple Watch that stores payment cards, tickets, passes and other credentials. How wou...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
13 people solved
Aug 6, 2026
Fora Travel logo
Fora Travel
Medium
Software Engineer Locked

Merge Two Unsorted Arrays into the First Array

Merge two unsorted integer arrays into the reserved space of the first array and sort the combined values in place. Learn how length, not placeholder ...

Coding & Algorithms
17
0
134 people solved
Aug 16, 2026
Amazon logo
Amazon
Easy
Data EngineerIntern

Answer Amazon Behavioral Questions

Question You are in the behavioral portion of an Amazon final-round interview (Software Development Engineer internship). Prepare strong, structured r...

Behavioral & LeadershipLeadership & InfluenceMotivation & Fit
33
0
415 people solved
Feb 23, 2026
Alibaba logo
Alibaba
Medium
Software Engineer

Fixed-Capacity Cache That Evicts the Least Frequently Used Key, Ties by Recency

Implement a key-value cache with a fixed capacity that, when it is full and a new key has to be inserted, evicts the key that has been used the fewest...

Coding & AlgorithmsData Structure DesignLinked Lists
1
0
16 people solved
Oct 7, 2026
Google logo
Google
Medium
Software EngineerSenior+ Locked

Compute the Union of Two Sorted Interval Lists

Compute the union of two sorted, nonoverlapping lists of closed intervals. Merge the two streams in linear time, combining endpoint-touching, duplicat...

Coding & AlgorithmsIntervals & SchedulingTwo Pointers & Sliding Window
52
0
367 people solved
Aug 6, 2026
Amazon logo
AmazonGoogleMetaHashedIn

Also asked at Meta, HashedIn

Hard
Software Engineer

Fewest Adjacent-or-Equal-Value Jumps to the Last Index

Problem Start at index 0. In one step, move to an in-bounds neighboring index or to any different index holding the same value. Return the minimum ste...

Coding & AlgorithmsGraphs
0
0
11 people solved
Palantir logo
Palantir
Medium
Software EngineerSenior+

Design a Tool Registration, Discovery and Safe Execution Layer for LLM Agents

Design the platform layer that lets LLM-driven agents use tools exposed by backend services. Service teams publish capabilities (for example, "query t...

System DesignAPI DesignAI Agents
6
0
61 people solved
Jan 30, 2026
AMD logo
AMD
Medium
Software Engineer Locked

Evaluate Agents That Generate or Optimize Kernels and Compiler Code

Evaluate kernel and compiler agents with bounded transformation spaces, isolated execution, differential correctness checks, numerical tolerances, rep...

ML System DesignAI AgentsSandboxing & Isolation
3
0
22 people solved
Sep 14, 2026
Uber logo
Uber
Hard
Software Engineer

Solve Knight and Reversal Problems

The online assessment contained two coding problems: 1. Generalized knight shortest path: Given an integer n, consider an n x n chessboard with coordi...

Coding & AlgorithmsGraphsGrids & Matrices
27
0
185 people solved
Apr 2, 2026
Amazon logo
Amazon
Medium
Software EngineerIntern

Implement Cache and Rotate Matrix

Solve the following two independent coding tasks. Task 1: Implement an LRU Cache Design a data structure LRUCache that stores integer keys and integer...

Coding & Algorithms
5
0
96 people solved
Apr 20, 2026
DoorDash logo
DoorDash
Medium
Data Analyst

Metrics and Stakeholder Dashboards for a Store-Page Most-Ordered Items Feature

You are interviewing for a data analyst role on the team responsible for stores at a food-delivery marketplace. In a case interview you are given one ...

Analytics & ExperimentationMetrics & KPIsBI & Reporting Systems
0
0
7 people solved
Sep 12, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Easy
Data Scientist Locked

Condition on a Chosen Rabbit Losing

Compute the chance that a uniformly chosen rabbit was the least athletic after learning that it lost. The solution uses joint and total loss probabili...

Statistics & Math
6
0
65 people solved
Aug 16, 2026
Reddit logo
Reddit
Medium
Machine Learning Engineer Locked

Implement a simplified memcached server

This question evaluates a candidate's ability to implement a TCP-based in-memory key-value store, exercising skills in network I/O, protocol parsing, ...

Coding & Algorithms
7
0
97 people solved
May 31, 2026
Netflix logo
Netflix
Medium
Software Engineer Locked

Reason About a Movie Billboard Rotation Component

Recover the missing contract for a movie billboard rotation component before designing its behavior around two ordered maps rather than a heap. Explai...

Software Engineering Fundamentals
6
0
80 people solved
Jun 24, 2026
C3 AI logo
C3 AI
Medium
Data ScientistIntern

Choose a Parameter to Reduce Underfitting in Gradient-Boosted Trees

Choose a Parameter to Reduce Underfitting in Gradient-Boosted Trees A gradient-boosted tree model is underfitting. Which parameter could you decrease ...

Machine LearningSupervised LearningML Fundamentals
3
0
29 people solved
Sep 15, 2026
Databricks logo
Databricks
Medium
Software Engineer Locked

Design a Slack-Like Messaging System

This question evaluates a candidate's ability to architect a real-time team messaging platform, testing competencies in distributed systems, data mode...

System DesignReal-Time SystemsMessaging & Event-Driven
58
0
512 people solved
May 14, 2026
Google logo
Google
Medium
Product Manager

Product Design for AI-Generated Email Summaries Built on Google's Gemini

You are a product manager at Google. Design an email summarization feature powered by Gemini, Google's family of AI models. `hint Pick the email momen...

Product Design & StrategyAI Product ManagementLLM Applications
0
0
5 people solved
Sep 9, 2026
Databricks logo
Databricks
Medium
Software Engineer Locked

Design a stock order manager

This question evaluates a candidate's ability to model and manage order lifecycle and state reconciliation, along with understanding of distributed-sy...

System DesignDistributed Transactions & IdempotencyAPI Integration & HTTP Clients
112
0
1081 people solved
Apr 12, 2026
Uber logo
Uber
Hard
Machine Learning Engineer Locked

Find Robots by Nearest-Blocker Distances

Locate every robot whose left, top, bottom, and right distances to the nearest blocker or grid boundary match a four-value query.

Coding & Algorithms
7
0
127 people solved
Sep 2, 2026
Interactive Brokers logo
Interactive Brokers
Easy
Software Engineer

Calculate Tax in a Progressive Marginal Tax System

Implement a progressive marginal tax calculator. Brackets are sorted (lower_cutoff, rate) pairs. Each portion of income is taxed at the rate for its b...

Coding & Algorithms
13
0
102 people solved
Apr 30, 2026
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