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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
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
Google logo
Google
Medium
Software Engineer

Handle overwhelmed team as senior manager

Handle overwhelmed team as senior manager Behavioral: Leading an Overloaded Engineering Team Context You are a senior engineering leader. Your softwar...

Behavioral & Leadership
4
0
72 people solved
Aug 8, 2025
BlackRock logo
BlackRock
Medium
Data Engineer

Solve two interval array problems

You are given two interval-based tasks from a technical screen for a data engineering role. 1. Merge overlapping intervals - Input: an array of int...

Coding & AlgorithmsIntervals & Scheduling
13
1
152 people solved
Feb 18, 2026
Google logo
Google
Medium
Software Engineer

Describe a major challenge you faced

In a behavioral interview for a software engineering or technical role, you are asked: > Describe the most significant challenge you have faced in an ...

Behavioral & Leadership
8
0
96 people solved
Dec 8, 2025
Amazon logo
Amazon
Hard
Software Engineer

Design ad clickstream analytics pipeline

Design ad clickstream analytics pipeline Design an end-to-end advertising clickstream ingestion and analytics platform that ingests events through Kaf...

System DesignData Ingestion & CDCBatch & Stream Processing
17
0
120 people solved
Jul 31, 2025
Oracle logo
Oracle
Medium
Software Engineer Locked

Maximize Profit with One Stock Transaction

Implement max_profit(prices) for daily integer prices. Work through the function contract, boundary cases, correctness argument, and time and space co...

Coding & Algorithms
1
0
20 people solved
Jul 26, 2026
Salesforce logo
Salesforce
Medium
Machine Learning EngineerSenior+

Build a concurrent site crawler

Implement a small crawler in Python for a single target website. Requirements: - Input: a start URL, a maximum crawl depth, and an output CSV path. - ...

Coding & AlgorithmsConcurrencyAPI Integration & HTTP Clients
11
0
109 people solved
Jan 12, 2026
Oracle logo
Oracle
Medium
Software Engineer

Minimize sum with halving operations

Minimize sum with halving operations You are given an array of non-negative integers nums and an integer k. In one operation, choose any index i and r...

Coding & Algorithms
8
0
85 people solved
Aug 7, 2025
Google logo
Google
Medium
Data Scientist

Build and evaluate bad-link classifier

You have 1,000 URLs labeled as bad or good and a much larger unlabeled pool, with bad links rare. Design features and train a logistic regression. Exp...

Machine LearningSupervised LearningModel Evaluation
7
0
114 people solved
Oct 13, 2025
PayPal logo
PayPal
Easy
Data Scientist

Write SQL for top drivers and cancellation rates

Question You work on a rideshare / ride-hailing product that connects drivers and riders, with a focus on airport pickups. Using SQL, answer the quest...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
11
0
152 people solved
Dec 7, 2025
Amazon logo
Amazon
Hard
Software Engineer

Design locker allocation service

Design a Best-Fit Locker Assignment Component Context You are designing the locker-assignment component for a Locker OS used at physical locker banks ...

System Design
5
0
83 people solved
Sep 6, 2025
Capital One logo
Capital One
Medium
Data Scientist

Merge ad CSVs and compute CTR

Using SQL, clean and merge four CSVs and answer all parts exactly. Schema and sample rows (assume types: date is DATE, others INT/VARCHAR): platforms(...

Data Manipulation (SQL/Python)
4
0
36 people solved
Oct 13, 2025
Upstart logo
Upstart
Medium
Data Scientist

Solve SQL CTR and Python analytics tasks

Part A — SQL: Compute click-through rate (CTR) by pin_format for US new users. New users are those whose signup_date is within 30 days (inclusive) of ...

Data Manipulation (SQL/Python)
4
0
29 people solved
Oct 13, 2025
LinkedIn logo
LinkedIn
Easy
Software Engineer Locked

Design a Top-K Ranking Service

This question evaluates a candidate's ability to design scalable, real-time Top-K ranking services, testing competencies in distributed systems, strea...

System DesignBatch & Stream ProcessingHeaps & Priority Queues
9
0
133 people solved
Mar 10, 2026
Optiver logo
Optiver
Medium
Software Engineer

Compute expectations, conditionals, odds, and distributions

Fast Probability and Statistics (No Calculator) Context: Answer quickly with mental math and concise reasoning. Show set-up and any helpful shortcuts....

Statistics & MathProbabilityPuzzles & Brainteasers
17
0
141 people solved
Aug 13, 2025
Two Sigma logo
Two Sigma
Medium
Data Scientist Locked

Evaluate a Piecewise Linear Function

This question evaluates understanding of linear interpolation, numerical reasoning with ordered 2D points, and input validation when computing values ...

Coding & Algorithms
7
0
57 people solved
Mar 3, 2026
Coinbase logo
Coinbase
Medium
Machine Learning Engineer

Build a baseline classification model from messy data

In a live notebook (e.g., Jupyter), you are given a messy, real-world tabular dataset for a binary classification problem. Data characteristics - Targ...

Machine LearningSupervised LearningData Cleaning & Wrangling
16
0
157 people solved
Dec 4, 2025
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Solve Three Coding Interview Problems

This set of problems evaluates competency in algorithmic problem-solving, including merging sorted arrays with duplicate elimination, reasoning about ...

Coding & Algorithms
3
0
67 people solved
Feb 7, 2026
Coinbase logo
Coinbase
Medium
Software Engineer

Generate Weighted Random NFTs with Updates

You manage k NFT types, each with a positive integer rarity weight w[i]. Implement a minter: constructor(w) builds any needed structures in O(k); mint...

Coding & AlgorithmsMath & Number TheoryTrees
30
0
280 people solved
Sep 6, 2025
DoorDash logo
DoorDash
Hard
Data Scientist

Evaluate Account-Partner Onboarding with Success Metrics

Evaluate Account-Partner Onboarding with Success Metrics Scenario DoorDash's account-partner team acquires new merchants onto the marketplace, and lea...

Analytics & ExperimentationCausal InferenceMetrics & KPIs
93
0
306 people solved
Aug 4, 2025
Google logo
Google
Medium
Software EngineerNew Grad Locked

Design an Employee Coverage Timeline

Use a grouped sweep line and per-ID reference counts to build employee coverage segments while preserving consistent IDs and names across overlapping ...

Software Engineering Fundamentals
2
0
20 people solved
Jun 7, 2026
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