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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
Ramp logo
Ramp
Hard
Software Engineer AI

Reconcile Records Across Sources

In an AI-assisted ("AI coding") interview round, you are asked to reconcile person records across multiple data sources. Each source contains records ...

Software Engineering FundamentalsData Cleaning & WranglingAI-Assisted Development
95
0
1196 people solved
Jan 17, 2026
Google logo
GoogleTCSAmazon

Also asked at Amazon, Microsoft, Meta, Bloomberg, MAQ Software

Easy
Software Engineer

Delete Repeated Email Rows While Keeping the Smallest ID

Problem Delete duplicate-email rows from Person itself, leaving the row with the smallest id for each email. SQL must use a DELETE statement, not a SE...

Data Manipulation (SQL/Python)SQLData Cleaning & Wrangling
0
0
8 people solved
Auger logo
Auger
Medium
Software EngineerSenior+

Show the Technical Difficulty Behind a High-Impact Project

Question Present a high-impact project, then answer the harder question: what made it technically difficult? Explain the constraints, the non-obvious ...

Behavioral & Leadership
3
0
52 people solved
Aug 1, 2026
Physical Intelligence logo
Physical Intelligence
Hard
Software Engineer

Build and Present an Embedding Pipeline in 90 Minutes Using AI Coding Agents

This is a 90-minute mini project with two interviewers watching. You log in over SSH to a prepared environment that already contains: - a dataset for ...

Software Engineering FundamentalsAI-Assisted DevelopmentEmbeddings & Vector Search
6
0
70 people solved
Sep 8, 2026
Engelhart logo
Engelhart
Medium
Software Engineer

Python Abstract Classes and Instance, Class and Static Methods

Explain abstract classes and the three kinds of methods a Python class can define. These came as a quick oral sequence in the fundamentals half of a t...

Software Engineering FundamentalsProgramming Languages
1
0
11 people solved
Sep 19, 2026
Stripe logo
Stripe
Medium
Software EngineerIntern

Schedule Welcome and Expiration Emails from Subscription Records

A subscription service sends automated emails at set points in each customer's subscription, such as a welcome email when the subscription starts and ...

Software Engineering FundamentalsSorting
50
0
347 people solved
Dec 19, 2025
Salesforce logo
Salesforce
Easy
Software Engineer

Explain a Project Architecture and the Technology Choices Behind It

Interview Prompt Walk a hiring manager through one project you worked on and the technology stack behind it. Explain the problem, architecture, your p...

Behavioral & Leadership
13
0
94 people solved
Aug 23, 2026
Yandex logo
YandexAdobeRoblox

Also asked at Roblox, VK, Amazon, Google, Snowflake, Samsung, Apple

Medium
Software Engineer

Choose an Empty Seat with the Best Nearest-Neighbor Distance

Problem seats marks occupied positions with 1 and empty positions with 0. Choose an empty position to maximize its index distance to the closest occup...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
11 people solved
Grammarly logo
GrammarlyGoogleAmazon

Also asked at Amazon, Microsoft, Meta, Bloomberg

Hard
Software Engineer

Recover a Binary Tree from Preorder Values with Dash Depths

Problem The string traversal records a valid preorder walk of a binary tree. Each node is written as D dashes followed by its positive decimal value, ...

Coding & AlgorithmsTreesParsing & Interpreters
1
0
14 people solved
MongoDB logo
MongoDB
Medium
Software EngineerSenior+

Implement a sliding-window rate limiter (n requests per k seconds), then make it per key

In a technical screen you are asked to implement a rate limiter that admits a request only if fewer than n requests have already been admitted in the ...

Software Engineering FundamentalsRate LimitingConcurrency
4
0
53 people solved
Jul 12, 2026
Tesla logo
Tesla
Hard
Software EngineerSenior+ Locked

Design a Distributed Blob Storage System for Build Artifacts

Design a distributed storage system for build artifacts, similar to a distributed NoSQL database but storing opaque blobs with looser ACID requirement...

System DesignFile & Media StorageConsistency & Availability
6
0
56 people solved
Sep 7, 2026
Wayfair logo
Wayfair
Medium
Applied Scientist Locked

Set Bids for Search Advertising from Business Value

Design search-ad bidding from expected business value, with budget pacing, delayed conversion feedback, auction assumptions, and incremental-profit ev...

ML System DesignCTR Prediction & Ads MLAds Systems
2
0
23 people solved
Sep 10, 2026
Google logo
GoogleMetaAmazonRubrik

Also asked at Amazon, Rubrik

Hard
Software Engineer

Track Coverage of Half-Open Real Intervals

Problem Implement RangeModule, initially tracking no numbers. addRange(left,right) includes every real x with left<=x<right. removeRange stops trackin...

Coding & AlgorithmsIntervals & SchedulingData Structure Design
1
0
16 people solved
Anthropic logo
Anthropic
Medium
Software Engineer

Design GPU inference request batching

Design a system that serves online model-inference requests on GPUs. Requests arrive one at a time from clients, but GPU throughput is far higher when...

ML System DesignLLM Inference & Serving
149
0
2120 people solved
Mar 13, 2026
Google logo
Google
Medium
Product Manager

Delivering an Unpopular Product Trade-off Decision to Affected Teams

You are interviewing for a product manager role at Google. The interviewer asks you to describe a time when you had to explain a hard trade-off, or a ...

Behavioral & LeadershipCommunication & Stakeholders
1
0
12 people solved
Oct 13, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad Locked

Design an Object-Oriented Shopping Cart

Design an object-oriented shopping cart with exact money handling, extensible pricing rules, concurrency control, and auditable totals.

Software Engineering Fundamentals
53
1
843 people solved
Sep 2, 2026
Anthropic logo
Anthropic
Hard
Software EngineerSenior+

Batch-Apply Pillow Image Transforms, Then Parallelize: Processes vs Threads

You are given a set of cat images and must apply a series of image transforms to each one. The interviewer fixes the image library, Pillow, and the st...

Software Engineering FundamentalsConcurrencyProgramming Languages
2
0
28 people solved
Jul 26, 2026
Datadog logo
Datadog
Medium
Software Engineer AI

Implement a Snowflake Query Client

Build a lightweight query client for a Snowflake-like data warehouse. Implement a QueryClient that can: 1. Connect to the warehouse using configuratio...

Coding & AlgorithmsAPI Integration & HTTP Clients
54
0
444 people solved
Apr 2, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Count Digit-Reversal Equivalent Pairs

This Hudson River Trading coding question tests hash-based counting for pairs that become equivalent after a digit-reversal transform. It is useful fo...

Coding & Algorithms
16
0
209 people solved
Jul 2, 2026
Instacart logo
Instacart
Medium
Software Engineer Locked

Calculate a Basket Total from Delimited Product Records

Parse SKU, product, quantity, and integer-cent prices to calculate a basket total, with repeated records, zero quantities, and exact integer arithmeti...

Coding & AlgorithmsParsing & InterpretersArrays & Strings
6
0
113 people solved
Sep 6, 2026
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