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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
Optiver logo
Optiver
Medium
Software Engineer

Design an object-oriented queue and compare implementations

Design an object-oriented queue and compare implementations You are asked to design an object-oriented Queue abstraction and discuss how it can be imp...

Software Engineering FundamentalsData Structure Design
52
0
435 people solved
Jul 19, 2025
Hudson River Trading logo
Hudson River Trading
Hard
Software Engineer

Why pursue full-stack engineering?

You are interviewing for a full-stack software engineering role. Explain why you are specifically interested in full-stack work instead of focusing on...

Behavioral & Leadership
14
1
110 people solved
Apr 6, 2026
CVS Health logo
CVS Health
Medium
Data Scientist

Calculate annual percentages and YoY by cohorts

Answer both SQL and Python parts. Be precise about deduping and denominator choices. SQL schema (sample rows): orders order_id | user_id | order_date ...

Data Manipulation (SQL/Python)SQLPandas & Python Data
17
0
132 people solved
Oct 13, 2025
Netflix logo
Netflix
Medium
Software Engineer

Solve non-repeating show substring

Question LeetCode 3. Longest Substring Without Repeating Characters – variant where the elements are show names instead of numbers. https://leetcode.c...

Coding & AlgorithmsTwo Pointers & Sliding Window
17
0
281 people solved
Aug 4, 2025
The New York Times logo
The New York Times
Medium
Product Manager

Behavioral: aligning engineering, design and other functions on one project

In a product manager interview, you are asked to tell the story of a project you worked on with people from several functions, such as engineering, de...

Behavioral & LeadershipConflict & CollaborationLeadership & Influence
1
0
11 people solved
Apr 8, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Design a packet reassembler API

Design a PacketAssembler API for Streaming Fragments Context and Assumptions - You are building a small component that assembles packets from a byte s...

System DesignData Structure Design
22
1
244 people solved
Sep 6, 2025
Hebbia logo
Hebbia
Medium
Software Engineer Locked

Implement Ultimate Tic-Tac-Toe

This question evaluates object-oriented design, state management, rule validation, and algorithmic reasoning for both standard and Ultimate Tic-Tac-To...

Coding & Algorithms
6
0
42 people solved
May 22, 2026
Oracle logo
Oracle
Easy
Software Engineer

Design structure for first unique login user

You are given an online stream of user login events. Each event is a user ID (e.g., an integer or string) indicating that this user has just logged in...

Coding & Algorithms
6
0
83 people solved
Oct 12, 2025
Axon logo
Axon
Medium
Software Engineer Locked

Design an image-to-multilanguage translator

This question evaluates a candidate's ability to design a scalable, low-latency system for processing images with OCR and multilingual translation, ex...

System DesignSystem Design FundamentalsFile & Media Storage
19
0
252 people solved
Feb 3, 2026
BuildOps logo
BuildOps
Medium
Software EngineerSenior+

Senior Behavioral: Your Highest-Impact Project and a Hard Technical Problem You Solved

In the behavioral part of a senior software engineer loop, the interviewer asks about your own work in two ways. First, describe the project you consi...

Behavioral & LeadershipProject Deep Dive
1
0
13 people solved
May 6, 2026
Apple logo
Apple
Easy
Data Scientist

Write the logistic regression loss function

Write the logistic regression loss function Logistic Regression Loss Consider binary logistic regression. - Dataset: \(\{(\mathbf{x}_i, y_i)\}_{i=1}^n...

Machine LearningRegression & Statistical ModelingSupervised Learning
14
0
128 people solved
Jul 15, 2025
Brex logo
Brex
Medium
Software Engineer

Build a React color multi-select dropdown UI

Implement a React UI that lets users multi-select colors from a dropdown and view details. You are given a JavaScript object where each key is a color...

Software Engineering FundamentalsReact & UI FrameworksState Management
9
0
168 people solved
Feb 10, 2026
Apple logo
Apple
Medium
Software Engineer Locked

Copy a Linked List with Random Pointers

Create a deep copy of a linked list whose nodes have next and arbitrary random pointers, using constant auxiliary space beyond the new nodes. Preserve...

Coding & Algorithms
4
1
53 people solved
Jun 3, 2026
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Design an Event Booking System

This question evaluates system architecture, distributed systems, data modeling, concurrency control for seat inventory, transactional integrity for b...

System Design
5
0
80 people solved
Feb 22, 2026
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Design a live-stream comments system

This question evaluates design skills for scalable, low-latency real-time comment systems, covering architecture, data modeling, APIs, ingestion and f...

System DesignReal-Time SystemsMessaging & Event-Driven
9
0
94 people solved
Jan 22, 2026
Meta logo
Meta
Medium
Product Manager

Diagnosing a Sudden 50% Rise in Average Comments on a News Platform

You are a product manager for a news platform where readers can comment on stories. Over a span of two days, the platform's average number of comments...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
1
0
13 people solved
Aug 28, 2026
The New York Times logo
The New York Times
Medium
Product Manager

Drawing Out Quiet Voices and Managing Dominant Ones in Team Brainstorms

In a product manager interview, you are asked how you encourage participation when you run a brainstorming session. Explain the specific things you do...

Behavioral & LeadershipConflict & Collaboration
0
0
10 people solved
Apr 7, 2026
Uber logo
Uber
Medium
Software Engineer

Design an object-oriented parking lot system

Design an object-oriented model for a parking lot management system. Requirements: - The parking lot has multiple levels; each level has multiple park...

Software Engineering FundamentalsLow-Level Design (OOP)
36
0
257 people solved
Nov 2, 2025
Roku logo
Roku
Medium
Data Scientist

Write SQL for profit, growth, retention

Write ANSI-SQL (PostgreSQL preferred) for the tasks below. Assume all timestamps are UTC and that "today" = 2025-09-01. Schema: - products(product_id ...

Data Manipulation (SQL/Python)SQLBusiness Case Analysis
10
0
159 people solved
Oct 13, 2025
Stripe logo
Stripe
Easy
Data Engineer Locked

Compute shipping cost with tiered pricing

This question evaluates the ability to implement tiered billing and aggregate shipping costs across order line items, testing competencies in algorith...

Coding & AlgorithmsArrays & StringsMath & Number Theory
12
0
129 people solved
Jan 17, 2026
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