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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
569
Updated
10.02.2026
11.9k Questions 569 Companies10.02.2026

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>Build a 30-day plan from PracHub's Meta SWE questions.

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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
Waymo logo
Waymo
Medium
Frontend EngineerSenior+

Design the Frontend of an AI Chat Application With Streaming Replies

In this system design round for a senior frontend role, you are asked to design an AI chat application with the focus on the frontend. A user writes a...

System DesignState ManagementReal-Time Systems
2
0
24 people solved
Sep 10, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Most Frequent Substring Under Distinct-Letter and Length Limits

Given a lowercase string s, consider only the substrings that satisfy two limits, and return how many times the most frequent of them occurs in s. A s...

Coding & AlgorithmsTwo Pointers & Sliding Window
4
0
36 people solved
Sep 7, 2026
Google logo
Google
Medium
Data Scientist

Measure Bird Species Segregation

You are a data scientist analyzing bird observations from a forest. The ecology team wants to know whether different bird species are spatially segreg...

Statistics & MathHypothesis Testing
114
2
2092 people solved
May 28, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Explain a GenAI Use Case and Learn from a Failure

Describe a concrete example of using generative AI, including how it worked and your own contribution. Then discuss a mistake or failure involving tha...

Software Engineering FundamentalsProject Deep DiveFailure & Learning
3
0
50 people solved
Aug 30, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Easy
Software Engineer Locked

Index a CSV Movie Catalog for Fast Year-Range Queries

Build an immutable movie catalog from CSV data so frequent inclusive year-range queries avoid scanning every record. A sound design addresses standard...

Software Engineering FundamentalsBinary SearchParsing & Interpreters
38
0
325 people solved
Aug 3, 2026
DoorDash logo
DoorDash
Medium
Software EngineerSenior+

Design a Menu Item Review and Rating System for a Food-Delivery Platform

Design the menu review feature of a food-delivery platform. The report names the problem only as "menu review" and notes that it comes with many funct...

System DesignSystem Design FundamentalsAPI Design
2
0
26 people solved
Sep 10, 2026
Waymo logo
Waymo
Medium
Software Engineer

Minimize Total Grid Distance to Every Building

Given a rectangular grid containing buildings, empty land, and obstacles, choose an empty cell that minimizes the sum of its shortest-path distances t...

Coding & AlgorithmsGrids & Matrices
4
0
81 people solved
Aug 27, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Easy
Software Engineer Locked

Design a Cash Register with Inventory and Profit Tracking

Design an object-oriented cash register that tracks inventory lots, commits multi-product sales, and reports realized gross profit. The interview prob...

Software Engineering FundamentalsLow-Level Design (OOP)Concurrency
16
0
186 people solved
Aug 3, 2026
Rippling logo
Rippling
Hard
Software EngineerSenior+

Design a Package Tracking Widget for an Email Inbox

Design a package tracking widget for a Gmail-like consumer email product. When a shipping or order email arrives, the system extracts the carrier trac...

System DesignSystem Design Fundamentals
4
0
44 people solved
Aug 1, 2026
Medium
Software Engineer

Build a Queue Worker with Backoff and a Dead-Letter Queue

Design a queue and a worker that retrieves tasks, retries failures with exponential backoff, and moves tasks to a dead-letter queue after a retry limi...

Software Engineering FundamentalsJob Scheduling & WorkflowsDistributed Transactions & Idempotency
1
0
17 people solved
Sep 17, 2026
Jane Street logo
Jane Street
Medium
Software Engineer Locked

Collapsible Code Editor: Brace Matching and Toggle

This question tests stack-based parsing and stateful data structure design through a two-part brace-matching and collapsible editor problem. It evalua...

Coding & AlgorithmsData Structure DesignStacks & Queues
35
0
665 people solved
Jun 4, 2026
Glean logo
Glean
Medium
Frontend Engineer

Implement Two-Player Connect Four on a 6x7 Board with Win and Draw Detection

In the first technical round of a frontend engineer loop, the task was to implement Connect Four on a 6 x 7 board (6 rows, 7 columns) for two players....

Software Engineering FundamentalsSimulation & State Machines
1
0
10 people solved
Sep 30, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Design Distributed Sorting Around an Explicit Helper Contract

Explain how you would sort data distributed across multiple workers when the environment provides a distributed-computation helper API. Describe the a...

Software Engineering FundamentalsSorting
5
0
43 people solved
Aug 27, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Design a Global One-to-One Voice Calling System

Design a global one-to-one voice-calling system for millions of registered mobile users. A user can call another registered user, the recipient receiv...

System DesignReal-Time SystemsAPI Design
2
0
27 people solved
Sep 10, 2026
Snowflake logo
Snowflake
Medium
Software EngineerIntern Locked

Return the Prerequisite Route for a Target Course

Return a deterministic course plan containing one target and exactly its direct and indirect prerequisites. Restrict cycle detection to the required s...

Coding & Algorithms
17
0
120 people solved
Aug 23, 2026
Upstart logo
Upstart
Medium
Software Engineer

Remove Duplicates While Preserving First-Appearance Order

Remove duplicate values from an array while preserving the order in which each distinct value first appears. Function Contract Implement filter_duplic...

Coding & AlgorithmsArrays & Strings
2
0
32 people solved
Sep 12, 2026
Waymo logo
Waymo
Medium
Software Engineer

Sort the Results of Applying a Quadratic Function to a Sorted Array

You are given the three integer coefficients a, b and c of the quadratic function f(x) = axx + b*x + c, and an integer array nums sorted in non-decrea...

Coding & AlgorithmsTwo Pointers & Sliding Window
1
0
33 people solved
Sep 10, 2026
Jane Street logo
Jane Street
Hard
Software Engineer Locked

Optimize a Two-Box Place-or-Take Game

A one-player game has two opaque boxes and lasts exactly 100 turns. Explain the assumptions and derivation clearly, check edge cases, and show how the...

Statistics & MathPuzzles & Brainteasers
60
0
519 people solved
Aug 3, 2026
Meta logo
Meta
Hard
Software Engineer

Design Friend Recommendations for a Large Friendship Graph

Design a friend-recommendation algorithm given a list of users and friendship pairs. Explain a recommendation strategy, its ranking policy, and how yo...

Software Engineering FundamentalsGraphs
4
0
35 people solved
Sep 4, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Design a Cloud Development Environment Platform Like an Online IDE

Design a platform that gives developers cloud-hosted development environments, in the style of GitHub Codespaces or an online IDE. Assume the core exp...

System DesignSystem Design FundamentalsSandboxing & Isolation
1
0
21 people solved
Sep 18, 2026
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