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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
Perplexity logo
Perplexity
Medium
Product Manager

Behavioral: A Time You Ran Fast Prototype-and-Test Loops With a UX Designer

Tell me about a time you ran fast design iterations with a UX designer. How did you set up the loop, and what did it produce? `hint Show the loop, not...

Behavioral & LeadershipUser Research & DiscoveryConflict & Collaboration
1
0
13 people solved
May 11, 2026
Jane Street logo
Jane Street
Hard
Machine Learning Engineer

Design and implement a tiny language runtime

Design and implement a tiny language runtime Minimal Imperative Language — Design and Implementation Task Context You are asked to design and implemen...

System DesignParsing & Interpreters
68
1
789 people solved
Aug 1, 2025
Stripe logo
Stripe
Medium
Product Manager

Product Sense: Mobile Bank Account Experience for Children and Their Parents

Design a mobile banking app for children. Explain which age group you would build for, what the product does for the child and for the parent or guard...

Product Design & StrategyProduct SenseMetrics & KPIs
1
0
9 people solved
Aug 1, 2026
Netflix logo
Netflix
Medium
Software Engineer

Return valid task order from prerequisites

You are given N tasks labeled 0..N-1 and a list of directed dependency pairs [(a,b), ...] meaning task a must be done before task b. 1) Return one val...

Coding & AlgorithmsGraphs
15
0
208 people solved
Jan 30, 2026
Boston Consulting Group logo
Boston Consulting Group
Medium
Product Manager

Walk through a lead-to-cash project you delivered and prove its business impact

Walk the interviewer through a lead-to-cash project in which you delivered a solution meant to produce specific business results. How did you decide w...

Behavioral & LeadershipProject Deep DiveLaunch Evaluation
0
0
7 people solved
Jul 30, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Check a Linked List Palindrome Without Mutating It

Implement linked_list_palindrome(values), where values is the traversal-order serialization of a singly linked list of integer values. Return whether ...

Coding & AlgorithmsLinked ListsTwo Pointers & Sliding Window
4
0
42 people solved
Apr 11, 2026
Anduril logo
Anduril
Medium
Software Engineer Locked

Evaluate a Variadic Addition or Subtraction Expression

Implement a variadic expression evaluator that supports addition and left-associative subtraction over integer operands. Practice accumulator initiali...

Coding & Algorithms
7
0
63 people solved
Aug 2, 2026
Google logo
GoogleBloombergMeta
Easy
Software Engineer

Return the Greatest Repeated-Digit Triple in a Long Number

Problem Find contiguous length-three substrings of num containing only one repeated digit. Return the greatest such triple as a three-character string...

Coding & AlgorithmsArrays & Strings
0
0
6 people solved
Amazon logo
Amazon
Medium
Applied Scientist

Find shortest path in a grid with obstacles

You are given a 2D grid of size m x n representing a maze. Each cell in the grid is either empty (0) or blocked (1). You are also given two coordinate...

Coding & AlgorithmsGrids & Matrices
9
0
117 people solved
Dec 8, 2025
Uber logo
Uber
Medium
Machine Learning Engineer

Find First Local Minimum

Given an integer array nums, find the index of the first local minimum. A local minimum is an element that is smaller than its immediate neighbors: - ...

Coding & Algorithms
9
0
75 people solved
Apr 17, 2026
Furtherai logo
Furtherai
Medium
Machine Learning EngineerSenior+

Build a Create/Execute Workflow Service With an AI Assistant: Plan, Implement, Verify

In a 45-minute coding session you are expected to use an AI coding assistant. With it, build a small service that creates and executes workflows. The ...

Software Engineering FundamentalsJob Scheduling & WorkflowsAI-Assisted Development
1
0
17 people solved
Aug 30, 2026
Confluent logo
Confluent
Medium
Software Engineer

Check Whether a Partially Filled 9x9 Sudoku Board Is Valid

You are given a 9 x 9 Sudoku board in which some cells are filled with digits and the rest are empty. Determine whether the filled cells are consisten...

Coding & AlgorithmsGrids & Matrices
6
0
48 people solved
Sep 12, 2026
Atlassian logo
Atlassian
Easy
Software Engineer Locked

Design a Data Stream Processor

This question evaluates the ability to design real-time data stream processing systems, testing competencies such as high-throughput ingestion, event ...

System Design
9
1
134 people solved
Feb 9, 2026
Asana logo
Asana
Medium
Software Engineer Locked

Navigate Challenges, Conflict, and Mentorship on a Major Project

Use one substantial project to discuss technical challenge, workplace conflict, and mentorship with clear personal ownership. Ground decisions in cons...

Behavioral & Leadership
4
0
92 people solved
Jul 16, 2026
Google logo
GoogleMetaAmazon

Also asked at Amazon, Bloomberg, Microsoft

Medium
Software Engineer

Smallest Palindromic Rearrangement

Problem You are given a lowercase English string s that is already a palindrome. Rearrange its characters to form the lexicographically smallest possi...

Coding & AlgorithmsArrays & StringsGreedy
0
0
7 people solved
American Express logo
American Express
Medium
Product Manager

American Express PM Behavioral: Your Career Direction Over the Coming Years

In a product manager interview at American Express, the interviewer asks where you expect your career to head over the next few years. Give the answer...

Behavioral & LeadershipMotivation & Fit
0
0
7 people solved
Jun 22, 2026
Pinterest logo
Pinterest
Medium
Data Scientist

Find top category by video time spent

Pandas required. You are given a DataFrame df with columns: user_id (int), pin_id (int), pin_type (str), category (str or None), time_spent_sec (numer...

Data Manipulation (SQL/Python)Pandas & Python DataData Cleaning & Wrangling
34
2
254 people solved
Oct 13, 2025
Roblox logo
Roblox
Hard
Software Engineer

Design a scheduled payment system

System Design: Scheduled Payment Service Context You are designing a backend service that allows end users to: - Schedule a payment for a future date/...

System DesignPayments & LedgersDistributed Transactions & Idempotency
36
0
512 people solved
Sep 6, 2025
Furtherai logo
Furtherai
Medium
Machine Learning EngineerSenior+

Map an Insurance Underwriting Workflow and Pick What AI Automation Should Fix First

The company builds AI that automates parts of insurance underwriting. In this round, a business-side interviewer checks whether you are genuinely inte...

Product Design & StrategyAI Product ManagementMetrics & KPIs
1
0
10 people solved
Aug 30, 2026
Meta logo
Meta
Medium
Software Engineer Locked

Answer Exact Island-Size Existence Queries

Preprocess a binary grid so exact island-size queries can be answered in average O(1) time. Traverse each four-connected island once, store its comple...

Coding & AlgorithmsGrids & MatricesGraphs
13
0
174 people solved
Aug 8, 2026
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