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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
Google logo
Google
Medium
Software Engineer Locked

Design a Bookshelf with Book CRUD and a Stable Bookmark

Design an object-oriented bookshelf with book CRUD, stable ordering, and explicit bookmark behavior. The solution separates immutable identity from po...

Software Engineering Fundamentals
10
0
86 people solved
Aug 30, 2026
Optiver logo
Optiver
Hard
Software EngineerIntern

Implement a Multicore Overheat Prevention Controller

Problem Simulate a firmware controller that prevents a multicore processor from overheating. Each core has a configured workload, all cores share pass...

Coding & AlgorithmsSimulation & State Machines
71
0
1048 people solved
Apr 21, 2026
Tesla logo
Tesla
Medium
Software Engineer

Design an Order Fulfillment System

Design an Order Fulfillment System Design the backend flow that takes an accepted customer order through inventory reservation, payment, warehouse pro...

System Design
4
0
62 people solved
Aug 24, 2026
Google logo
Google
Medium
Software EngineerSenior+ Locked

Find Paths Across a Weighted Binary Grid

Solve three top-to-bottom path tasks on a blocked grid: reachability, deterministic enumeration of simple paths, and a minimum-cost weighted path. Add...

Coding & AlgorithmsGrids & MatricesGraphs
39
2
587 people solved
Jul 17, 2026
Amazon logo
Amazon
Hard
Business Intelligence Engineer

Design a One-Page Warehouse Inbound Dashboard

Design a One-Page Warehouse Inbound Dashboard An operational vice president needs a one-page dashboard for warehouse inbound operations to decide how ...

Analytics & ExperimentationBI & Reporting SystemsMetrics & KPIs
2
0
20 people solved
Sep 9, 2026
Airwallex logo
Airwallex
Medium
Software Engineer

How You Use AI Tools at Work and When You Would Delegate a Task to an Agent

During a technical screen for a software engineering role, the interviewer asks how you use AI tools in your everyday engineering work, then pushes fu...

Behavioral & Leadership
3
0
30 people solved
Sep 10, 2026
Discord logo
Discord
Medium
Data ScientistSenior+

Count a Character in a String

Count a Character in a String Implement number_of_character(string, char). - string is the input string. - char is the single character whose occurren...

Coding & AlgorithmsArrays & Strings
1
0
15 people solved
Sep 26, 2026
Cohere logo
Cohere
Medium
Frontend Engineer

Design a Real-Time Comment System Front End With Optimistic Updates

Design the front end of a real-time comment system. Viewers see new comments from other people appear live, and can post their own. The interviewer's ...

System DesignState Management
1
0
13 people solved
Sep 22, 2026
Waymo logo
Waymo
Medium
Data Scientist

Average of a List of Integers, Returning 0 for an Empty List

This warm-up comes from a timed online assessment for a data science role. Write a function average(table) that returns the arithmetic mean of the num...

Coding & AlgorithmsArrays & Strings
1
0
29 people solved
Sep 10, 2026
Abridge logo
Abridge
Hard
Software Engineer

Sum of Integers Up to n Divisible by 3, 5, or 7

Given a positive integer n, return the sum of every integer in the range [1, n] that is divisible by at least one of 3, 5 or 7. Function Signature `py...

Coding & AlgorithmsMath & Number Theory
1
0
10 people solved
Sep 24, 2026
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
Optiver logo
Optiver
Medium
Software Engineer Locked

Design a Tiered Expiring Item Store

Design a tiered in-memory item store with deterministic placement, expiration, level-occupancy eligibility, and retrieval of the heaviest qualifying i...

Software Engineering FundamentalsData Structure DesignHeaps & Priority Queues
26
1
338 people solved
Aug 10, 2026
Charta Health logo
Charta Health
Medium
Software Engineer

Explain Your Project and Motivation for Charta Health

Give a detailed walkthrough of a project you worked on, then explain why you are interested in joining Charta Health. Part 1 — Project deep dive Descr...

Behavioral & LeadershipProject Deep DiveMotivation & Fit
2
0
40 people solved
Sep 9, 2026
Houzz logo
Houzz
Medium
Software Engineer

Convert a Column Number to an Excel-Style Label

Convert a one-based spreadsheet column number into its Excel-style column label. Columns 1 through 26 are A through Z; column 27 is AA, and the sequen...

Coding & AlgorithmsMath & Number Theory
1
0
16 people solved
Sep 18, 2026
Circle logo
Circle
Medium
Software Engineer

In-Memory Bank System With Top-N Activity Ranking and Expiring Pending Transfers

Implement an in-memory banking system as a single class. The task is delivered in stages: each stage adds behavior to the same class, and everything f...

Software Engineering FundamentalsData Structure Design
4
0
38 people solved
Sep 4, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

FP32 to Int8 Tensor Quantization: Scale, Zero Point, Clipping and Outliers

You are writing the numeric core of an int8 inference path: FP32 tensors (weights or activations) are converted to signed 8-bit integers so that they ...

Machine LearningML Coding
1
0
24 people solved
Sep 15, 2026
Glean logo
Glean
Medium
Machine Learning Engineer

Decide If a Passenger Can Reach a Station Using Time-Indexed Train Routes and Transfers

A train schedule is a collection of trains moving between stations, where stations are named by strings. Time starts at 0. Each train is given as a li...

Coding & AlgorithmsGraphs
0
0
8 people solved
Sep 30, 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
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
666 people solved
Jun 4, 2026
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