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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
Upstart logo
Upstart
Medium
Software Engineer

Explain Technology to a Nontechnical Audience

Explain Technology to a Nontechnical Audience Choose a technical concept and explain it to a nontechnical stakeholder who needs to make a decision bas...

Behavioral & Leadership
1
0
28 people solved
Jan 15, 2026
Meta logo
Meta
Medium
Product Manager

Product Sense: Build a Facebook Product for Kids, From Target Age to Safety Metrics

You are a product manager at Facebook and have been asked to design a new service for children. Decide who it should serve and what it should do, take...

Product Design & StrategyProduct SenseTrust & Safety
1
0
11 people solved
Dec 31, 2025
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer

Behavioral: Mentoring Others and Going Beyond Your Role to Help Teammates

In the behavioral round of a software engineering loop, the interviewer asks scenario questions about how you support the people around you. Two relat...

Behavioral & LeadershipMentoring & Team GrowthOwnership & Execution
2
0
19 people solved
May 2, 2026
Meta logo
Meta
Medium
Data Engineer

Find customer with max rentals in consecutive weeks

You are given a table purchases(customer_id INT, purchase_date DATE, rented_copies INT). Consider only dates in calendar year 2024. Define a full week...

Data Manipulation (SQL/Python)
1
2
26 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Data Scientist

Design marketplace experiments at DoorDash

You are interviewing for a product data role at DoorDash. Consider the following marketplace scenarios. 1. Top Dasher program DoorDash runs a status p...

Analytics & ExperimentationExperiment Design (A/B Testing)Metric Diagnostics
6
0
87 people solved
Mar 11, 2026
MathWorks logo
MathWorks
Medium
Software Engineer

Compute intersections for each segment

You are given $n$ segments on a number line. Segment $i$ is the closed interval $[\text{startsAt}[i], \text{endsAt}[i]]$ (inclusive endpoints), with $...

Coding & Algorithms
6
0
85 people solved
Sep 6, 2025
LinkedIn logo
LinkedIn
Medium
Data Scientist

Implement fast sampling for weighted k-sided die

You must sample from a categorical distribution over k outcomes with probabilities p1..pk (sum to 1) without using built-in categorical samplers. You ...

Coding & AlgorithmsProbabilityMath & Number Theory
6
0
127 people solved
Oct 13, 2025
Palo Alto Networks logo
Palo Alto Networks
Medium
Software Engineer

Mirror a binary tree and analyze complexity

Given the root of a binary tree, convert it to its mirror by swapping every node’s left and right children. Implement both recursive and iterative (us...

Coding & Algorithms
11
0
103 people solved
Sep 6, 2025
Google logo
Google
Medium
Data Scientist

Implement piecewise linear interpolation for time-to-empty

Time-to-Empty from a Discharge Curve (Piecewise Linear Interpolation) Implement a function time_to_empty(checkpoints, current_soc) that returns the nu...

Coding & Algorithms
9
0
90 people solved
Oct 13, 2025
Coinbase logo
Coinbase
Medium
Product Manager

Coinbase NFT Market Entry: Evaluate the Opportunity and Choose a Business Model

Coinbase is deciding what role, if any, to play in non-fungible tokens (NFTs). Should Coinbase participate in the NFT market? If it should, in what ca...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
10 people solved
Mar 29, 2026
MathWorks logo
MathWorks
Medium
Software Engineer

Maximize disjoint k-sum pairs

You are given an integer array nums and an integer k. In one operation you may remove two indices i < j if nums[i] + nums[j] == k; each index can be u...

Coding & Algorithms
7
0
72 people solved
Aug 10, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Identify Challenges and Solutions for Bike-Delivery Program

Identify Challenges and Solutions for a Bike-Delivery Program A food-delivery platform is considering a bike-based delivery option for couriers in sel...

Behavioral & LeadershipProduct StrategyBusiness Case Analysis
24
0
169 people solved
Jul 12, 2025
Rippling logo
Rippling
Easy
Software Engineer AI Locked

How would you scale rule evaluation?

Design a scalable expense-policy rule engine for one million rules and thousand-record batches. Covers structured rules, predicate indexes, bitset eva...

System DesignIndexing & Query PerformanceParsing & Interpreters
8
0
161 people solved
Apr 17, 2025
Stripe logo
Stripe
Medium
Software Engineer

Discuss compensation expectations and flexibility

HR Screen — Compensation Expectations Context: Software Engineer, HR screen. For clarity, total compensation typically includes base salary, annual bo...

Behavioral & Leadership
10
0
86 people solved
Aug 14, 2025
Morgan Stanley logo
Morgan Stanley
Medium
Software Engineer

Compute minimal cost to merge numbers

Compute minimal cost to merge numbers Given an array of positive integers, you may repeatedly perform the following operation until one number remains...

Coding & Algorithms
13
0
127 people solved
Jul 16, 2025
LinkedIn logo
LinkedIn
Easy
Data Scientist Locked

Design a short-video recommender system

This question evaluates a data scientist's competency in end-to-end machine learning system design for recommender systems, including retrieval and ra...

Machine LearningRecommendation SystemsRanking Models
28
0
313 people solved
Feb 1, 2026
Perplexity logo
Perplexity
Medium
Product Manager

Product Sense: Pick a Product With Excellent User Experience and Explain Its Design

Pick a product whose user experience you think is excellent, and explain what makes its design work. `hint Anchor it in one user's moment Rather than ...

Product Design & StrategyProduct Sense
1
0
11 people solved
May 12, 2026
Google logo
Google
Hard
Software Engineer

Scale median under memory constraints

Scale median under memory constraints Design a Scalable Streaming Median Service Under Memory Constraints Context You are building a service that cons...

System DesignSystem Design FundamentalsBatch & Stream Processing
12
0
102 people solved
Aug 8, 2025
PayPal logo
PayPal
Easy
Data Scientist

Evaluate smart cart idea and design experiment

Question Instacart is partnering with a local grocery store to introduce a smart cart in the physical store. While shopping in the partner store, a cu...

Analytics & Experimentation
6
0
74 people solved
Oct 10, 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
8
0
68 people solved
Mar 3, 2026
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