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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
Stripe logo
Stripe
Easy
Software Engineer

Background, AI use at work, misalignment with a company Stripe works with, why Stripe

A recruiter phone screen for a software engineering role at Stripe comes before the technical rounds and lasts about 20 minutes. Along with logistics,...

Behavioral & LeadershipMotivation & FitAI-Assisted Development
18
0
164 people solved
Oct 6, 2026
Whatnot logo
Whatnot
Medium
Software Engineer

Design a scalable donation system with reliable payment processing

Design a donation system: people give money to a cause or fundraiser, the system charges their payment method, records every donation, and shows donor...

System DesignPayments & LedgersDistributed Transactions & Idempotency
1
0
17 people solved
Nov 10, 2026
Google logo
Google
Medium
Data Scientist

Explain P-values and Confidence Intervals in Simple Linear Regression

Explain P-values and Confidence Intervals in Simple Linear Regression Discuss p-values, confidence intervals and simple linear regression. To make the...

Statistics & MathHypothesis TestingRegression & Statistical Modeling
47
0
646 people solved
Sep 23, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Recruiter Screen: Company Knowledge, Daily AI Use, Job-Change Motivation and AI Safety

A recruiter phone screen for a software engineering role at an AI company consisted of five open-ended questions and no technical exercise. The recrui...

Behavioral & LeadershipMotivation & FitAI-Assisted Development
4
0
65 people solved
Oct 18, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Design a Refund Workflow with Explicit State and Recovery

Design a refund system or workflow. Clarify the business rules and external payment integration before defining the implementation. Constraints and Cl...

Software Engineering FundamentalsPayments & LedgersDistributed Transactions & Idempotency
5
0
35 people solved
Oct 31, 2026
Jane Street logo
Jane Street
Medium
Software EngineerIntern

Evaluate Expressions with Strictly Positive Integer Intermediate Results

Evaluate a string arithmetic expression whose literals are positive integers and whose binary operators are +, -, *, and /. Return its integer value i...

Coding & AlgorithmsParsing & InterpretersBacktracking & Recursion
81
1
748 people solved
Aug 22, 2026
DoorDash logo
DoorDash
Hard
Software Engineer

Courier Pay From Overlapping Deliveries With Peak-Window Multipliers

A delivery courier accepts orders and later delivers them, and may carry several orders at the same time. The courier is paid for every minute each or...

Coding & AlgorithmsIntervals & Scheduling
61
3
546 people solved
Oct 1, 2026
OpenAI logo
OpenAI
Hard
Software EngineerNew Grad

Cheapest Daily Shirt Colors With No Color Repeated on Consecutive Days

A store has a sale on blue, green and red shirts for the next n days. On day i, a blue shirt costs blue_costs[i] dollars, a green shirt costs green_co...

Coding & AlgorithmsDynamic Programming
28
0
328 people solved
Oct 6, 2026
Pinterest logo
Pinterest
Medium
Software EngineerSenior+

Review AI-Generated LRU and LFU Cache Changes

Review AI-Generated LRU and LFU Cache Changes You are modifying an existing codebase with an AI coding assistant. Add an LRU cache and an LFU cache, c...

Software Engineering FundamentalsAI-Assisted DevelopmentData Structure Design
180
1
2114 people solved
Sep 1, 2026
Waymo logo
Waymo
Medium
Data Scientist

Sample Points Uniformly from a Unit Disk

Sample Points Uniformly from a Unit Disk Write a function that takes the requested number of points, n, and returns n random two-dimensional points di...

Coding & AlgorithmsProbabilityMath & Number Theory
41
2
298 people solved
Sep 28, 2026
Harvey logo
Harvey
Medium
Software Engineer

Spreadsheet Class With Set/Get, Cell-Reference Formulas and Cycle-Rejecting Writes

Implement an in-memory spreadsheet. Cells are named by column letters followed by a row number, such as A1 or C12. The interview built the class in th...

Software Engineering FundamentalsData Structure DesignGraphs
20
0
148 people solved
Oct 11, 2026
LinkedIn logo
LinkedIn
Medium
Machine Learning EngineerSenior+

Transformer Complexity, Inference Optimization, GQA and FlashAttention

In a fundamentals round for a staff-level AI engineering role, the interviewer asked a series of core Transformer questions: the computational complex...

Machine LearningTransformers & AttentionLLM Inference & Serving
6
0
48 people solved
Oct 23, 2026
Stripe logo
Stripe
Medium
Software Engineer

Fix Seekable POST Body Replay After a 307 Redirect in Python requests

You are working in a checkout of the open-source Python HTTP library requests. When a server answers a POST with 307 Temporary Redirect, the client mu...

Software Engineering FundamentalsDebuggingAPI Integration & HTTP Clients
44
0
518 people solved
Sep 24, 2026
Google logo
Google
Medium
Software Engineer

Design LLM Summarization of E-commerce Reviews with Prompt-Injection and PII Defenses

Design a platform that ingests customer product reviews from an e-commerce site and uses a large language model (LLM) to summarize them for an interna...

System DesignApplication SecurityLLM Applications
19
0
307 people solved
Oct 6, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Resume Project Deep Dive and Prioritizing Too Many Tasks at Once

This behavioral round had two threads. First, the interviewer went through your resume and asked for details of one or two of your projects. Then came...

Behavioral & LeadershipProject Deep DiveCommunication & Stakeholders
9
0
128 people solved
Oct 5, 2026
Nuro logo
Nuro
Medium
Software Engineer

Design a Job Queue for Multi-Stage Jobs on GPU and CPU Clusters

Design a system that accepts jobs and places them in a queue for execution. Each job has multiple stages, and the stages differ in what they need: som...

System DesignJob Scheduling & WorkflowsGPU Infrastructure
4
0
55 people solved
Oct 19, 2026
OpenAI logo
OpenAI
Hard
Software EngineerSenior+

Design a Real-Time Multiplayer Typing Race Game

Design an online multiplayer typing game. The interviewer compared it to designing online chess: players are matched into a game, the game's state has...

System DesignMultiplayer Game SystemsReal-Time Systems
6
0
95 people solved
Oct 14, 2026
eBay logo
eBay
Easy
Software Engineer

Explain a System You Built, Then Convert a Synchronous Request to Asynchronous

In a system design round on a shared online whiteboard, the interviewer first asks you to draw the architecture of a complex system you have worked on...

System DesignMessaging & Event-DrivenDistributed Transactions & Idempotency
5
0
42 people solved
Oct 28, 2026
Capital One logo
Capital One
Medium
Software Engineer

Design a Credit Card System: Authorization Latency and Sensitive Data Storage

Design the backend of a credit card system. Cardholders have card accounts with credit limits and use their cards to pay merchants. Each purchase reac...

System DesignPayments & LedgersCryptography
58
0
394 people solved
Oct 1, 2026
NVIDIA logo
NVIDIA
Easy
Software Engineer

Collect CPU, Memory and Disk Metrics, POST Them as JSON, and Add a Threshold Check

You are given a virtual machine inside an online coding environment. Instead of an algorithm puzzle, the task is practical: write a program by hand th...

Software Engineering FundamentalsObservabilityAPI Integration & HTTP Clients
13
0
222 people solved
Oct 7, 2026
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