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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
Software Engineer Locked

Palindrome After Deleting at Most One Character

This question evaluates a candidate's ability to reason about two-pointer string traversal and palindrome verification under a single edit constraint....

Coding & Algorithms
3
0
48 people solved
Jun 20, 2026
Tesla logo
Tesla
Hard
Software Engineer Locked

Compute Point-to-Plane Distance and Fit a Robust Plane

Compute vectorized point-to-plane distances and robustly fit a dominant 3D plane when roughly 30 percent of points are outliers. Address normalization...

Statistics & MathMath & Number Theory
11
0
135 people solved
Jul 7, 2026
Amazon logo
Amazon
Hard
Software EngineerIntern

Return all valid word-break sentences

Given a string s and a dictionary of strings wordDict, insert spaces into s to form a sentence such that every token is in wordDict. Return all possib...

Coding & AlgorithmsBacktracking & Recursion
15
0
261 people solved
Jan 15, 2026
Google logo
Google
Medium
Software Engineer

Choose Fast or Cheap Models

You are building an AI-powered product and must choose between two inference options for each request: - Option A: higher cost per token, but lower la...

ML System DesignLLM Inference & ServingMLOps & Model Serving
17
0
138 people solved
Jan 10, 2026
Amazon logo
Amazon
Medium
Data Scientist

Solve Algorithmic Challenges in Online Coding Assessments

Scenario Online assessment requiring implementation of common algorithmic problems. Question Given an array of integers and a target, return indices o...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
19
0
166 people solved
Aug 4, 2025
Bank of America logo
Bank of America
Medium
Data Scientist

Showcase initiative and collaboration examples

Behavioral & Technical Prompts (Data Scientist — Take-Home / Onsite) This is a multi-part behavioral interview for a Data Scientist role on a financia...

Behavioral & Leadership
12
0
120 people solved
Aug 4, 2025
Microsoft logo
Microsoft
Medium
Software Engineer

Implement an O(1) LRU Cache

Implement run_lru(capacity, operations) to model a least-recently-used cache with integer keys and values. Each operation is a three-integer row: - [0...

Coding & Algorithms
3
0
29 people solved
Apr 11, 2026
Perplexity logo
Perplexity
Medium
Product Manager

Presenting Hands-On AI Product and Workflow Automation Experience as a PM

You are interviewing for a product manager role at Perplexity. Walk the interviewer through your experience with AI: projects you have worked on and a...

Behavioral & LeadershipProject Deep DiveAI Product Management
1
0
11 people solved
May 6, 2026
Netflix logo
Netflix
Hard
Data Engineer Locked

Implement phrase search and JSON path

This question evaluates the ability to build an inverted index for in-memory exact phrase search and to implement JSON path traversal with wildcard ma...

Coding & Algorithms
8
0
81 people solved
Dec 13, 2025
Grammarly logo
Grammarly
Medium
Software Engineer

Design a Read-Once Chat System

Design a chat messaging system where one sender can select multiple recipients at send time, but the message is not a group chat message. Instead, the...

System DesignReal-Time SystemsMessaging & Event-Driven
36
0
287 people solved
Apr 6, 2026
Stripe logo
Stripe
Medium
Software Engineer

Implement tiered shipping calculator

Implement tiered shipping calculator Implement in JavaScript a shipping-cost calculator with three progressively richer pricing models based on a conf...

Coding & Algorithms
27
0
242 people solved
Jul 17, 2025
Atlassian logo
Atlassian
Medium
Software Engineer Locked

Find smallest common organization for employees

The question evaluates competency in hierarchical and graph data structures, including tree lowest-common-ancestor reasoning, DAG ancestor minimality,...

Coding & AlgorithmsTreesGraphs
23
0
177 people solved
Jan 14, 2026
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Splitting resources between a dish soap core business and a new laptop line

A company's best-selling product is dish soap, and it intends to enter the laptop market. How would you decide how to divide resources between the two...

Product / Decision MakingProduct StrategyPrioritization & Tradeoffs
0
0
7 people solved
Mar 9, 2026
Discord logo
Discord
Medium
Software EngineerNew Grad

Demonstrate effective AI-assisted coding workflow

In an interview where you are allowed to use an AI coding assistant, you are given a large scoped task (e.g., implementing a TCP chat server). The int...

Software Engineering FundamentalsAI-Assisted DevelopmentTesting & Quality
20
0
406 people solved
Jan 27, 2026
C3 AI logo
C3 AI
Medium
Data Scientist

Longest Substring Where Every Character Appears at Least K Times

Given a string s of lowercase English letters and an integer k, implement: `text longest_repeating_substring(s: str, k: int) -> int ` Return the lengt...

Coding & Algorithms
3
0
57 people solved
Aug 9, 2026
Axq Capital logo
Axq Capital
Medium
Software Engineer Locked

How Do You Handle Challenges? Answer with One Concrete Example

Answer the behavioral question of how you handle challenges, supported by one specific example of a difficult problem you faced at work. It tests stru...

Behavioral & LeadershipOwnership & ExecutionAmbiguity & Decision Making
1
0
23 people solved
Sep 8, 2026
Confluent logo
Confluent
Medium
Software EngineerSenior+

Design an LRU Cache with a Constant-Time Average

Design an LRU Cache with a Constant-Time Average Design an in-memory cache with fixed positive capacity. Keys are unique strings and values are signed...

Software Engineering Fundamentals
15
1
132 people solved
Jan 1, 2026
Booking.com logo
Booking.com
Medium
Product Manager

Booking.com: Designing a Generative AI Trip Planner Around Traveler Preferences

You are a product manager at Booking.com. How would you apply generative AI to build a trip plan tailored to each traveler, using what they tell you a...

Product Design & StrategyAI Product ManagementMetrics & KPIs
1
0
11 people solved
Jul 29, 2026
Amazon logo
Amazon
Hard
Software Engineer Locked

Design a Library Management System (API and Schema)

This question tests practical system design skills by requiring candidates to model a relational data schema and REST API for a library lending system...

System DesignSystem Design FundamentalsTransactions & Isolation
29
0
240 people solved
Jun 14, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Design a multi-tenant CI/CD platform

Question Design a multi-tenant CI/CD system that runs pipelines triggered by Git activity, isolates tenants from one another, and scales to thousands ...

System DesignCI/CD & DeploymentJob Scheduling & Workflows
26
0
486 people solved
Sep 6, 2025
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