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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

Practice with Claude Code or Codex

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>Build a 30-day plan from PracHub's Meta SWE questions.

Two weeks of coding, then system design, then mock rounds. Start day 1?

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
PayPal logo
PayPal
Medium
Data Scientist

Analyze Transactions for Risk and Implement Mitigation Strategies

Analyze Transactions for Risk and Implement Mitigation Strategies Real-Time Payments Risk: Accept or Decline, With Immediate Mitigations Scenario Two ...

Analytics & Experimentation
59
0
162 people solved
Aug 4, 2025
Meta logo
Meta
Hard
Data ScientistSenior+ Locked

Prove high-quality pixels improve ad performance

Prove high-quality pixels improve ad performance evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and...

Analytics & Experimentation
2
0
34 people solved
Aug 1, 2025
Meta logo
Meta
Easy
Data ScientistSenior+

Compute invalid event percentage by pixel

Context You work on an ads pixel instrumentation platform. Each pixel emits events throughout the day; some events are missing (not observed) and some...

Data Manipulation (SQL/Python)
1
1
21 people solved
Aug 1, 2025
Uber logo
Uber
Medium
Software Engineer

Design MapReduce for schedule aggregation

Design MapReduce for schedule aggregation MapReduce Design: Common Availability From Busy Intervals Context You are given large-scale calendar data: e...

System DesignBatch & Stream ProcessingIntervals & Scheduling
6
0
102 people solved
Aug 1, 2025
Uber logo
Uber
Medium
Software Engineer

Parse and evaluate nested expressions with validation

Design and implement a parser/evaluator for a parenthesized expression language where the input string may be invalid. The language uses spaces as tok...

Coding & Algorithms
4
0
70 people solved
Jul 31, 2025
Fidelity logo
Fidelity
Medium
Software Engineer

Explain using MapReduce

Explain using MapReduce Using the MapReduce Programming Model to Process Large Datasets You are asked to explain how the MapReduce programming model p...

System Design
6
0
54 people solved
Jul 31, 2025
Meta logo
Meta
Medium
Software Engineer

Find closest BST value and remove parentheses

Question LeetCode 270. Closest Binary Search Tree Value LeetCode 1249. Minimum Remove to Make Valid Parentheses (follow-up: achieve without using a st...

Coding & Algorithms
15
0
69 people solved
Jul 29, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Measure whether posts strengthen friendships

Measure whether posts strengthen friendships evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and rec...

Analytics & Experimentation
2
0
29 people solved
Jul 28, 2025
SoFi logo
SoFi
Medium
Software Engineer

Describe Past Project And Debugging Approach

Describe Past Project And Debugging Approach Behavioral + Technical Leadership: End-to-End Project and Production Bug Provide a recent, specific examp...

Behavioral & LeadershipDebuggingObservability
11
0
87 people solved
Jul 16, 2025
Uber logo
Uber
Hard
Software Engineer

Describe end-to-end design of past project

Describe end-to-end design of past project System Design Deep Dive: Past Project End-to-End Provide a detailed, end-to-end walkthrough of a significan...

System DesignProject Deep DiveSystem Design Fundamentals
9
0
104 people solved
Jul 15, 2025
PayPal logo
PayPal
Medium
Data Scientist

Identify Users with Specific Page Visit Sequence

page_visits +------------+---------+---------+----------+ | date | user_id | page_id | ts | +------------+---------+---------+----------+ ...

Data Manipulation (SQL/Python)
57
0
14 people solved
Jul 12, 2025
Point72 logo
Point72
Medium
Data Scientist

List Departments with Student Counts Including Zero

Students +----+--------+---------+ | id | name | dept_id | +----+--------+---------+ | 1 | Alice | 1 | | 2 | Bob | 2 | | 3 | Caro...

Data Manipulation (SQL/Python)
83
0
141 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Data Scientist

Resolve Conflicts and Clarify Goals in Data Projects

Behavioral Interview: Conflict, Ambiguity, and Critical Feedback You are interviewing for a data-focused role. The interviewer is assessing collaborat...

Behavioral & Leadership
21
0
76 people solved
Jul 12, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Handle merchant complaint about excessive demand

Handle a Merchant Complaint About Excessive Demand A merchant complains that DoorDash is sending more demand than their store can handle. They say the...

Behavioral & Leadership
8
0
64 people solved
Jul 7, 2025
DoorDash logo
DoorDash
Easy
Data Scientist Locked

Design a Top Dasher experiment with interference

Practice designing an interference-aware experiment for a Top Dasher incentive program in a delivery marketplace. The solution covers goal setting, zo...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
12
0
89 people solved
Jul 1, 2025
Robinhood logo
Robinhood
Medium
Product Manager

Why this role and team scope?

In a recruiter or early-screen conversation for a Product Manager role on Robinhood's crypto team, including wallet and B2B2C on-ramp work, answer: 1....

Behavioral & Leadership
5
0
58 people solved
May 13, 2025
Pinterest logo
Pinterest
Medium
Machine Learning Engineer Locked

Design a pin search engine

Design a Pinterest-style pin search engine with hybrid candidate generation, dual-encoder retrieval, multimodal ranking, pairwise/listwise losses, off...

ML System Design
5
0
98 people solved
Apr 9, 2025
Meta logo
Meta
Medium
Data Scientist

[Analytics Reasoning] Impact of Malicious Accounts on Meta

You are analyzing malicious accounts on a large social network. Assume: - 1% of all accounts are malicious. - Malicious accounts send friend requests ...

Analytics & Experimentation
11
0
48 people solved
Apr 7, 2025
Coinbase logo
Coinbase
Medium
Data ScientistSenior+

How would you analyze retail volume drop?

Retail BTC volatility is high, but retail trading volume on Coinbase has decreased. Explain how you would investigate the issue with data and turn the...

Analytics & Experimentation
5
0
47 people solved
Mar 25, 2025
Coinbase logo
Coinbase
Easy
Data ScientistSenior+ Locked

Design experiment and analyze volume drop scenario

Design an activation experiment for first-trade rate and investigate a retail trading volume drop despite higher BTC volatility. The solution covers A...

Analytics & Experimentation
2
0
27 people solved
Feb 6, 2025
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