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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.1k
Companies
579
Updated
10.10.2026
12.1k Questions 579 Companies10.10.2026
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
Squarepoint logo
Squarepoint
Medium
Risk Technology Software EngineerSenior+ Locked

Design a Polynomial Expression Parser and Canonical Formatter

Define a testable polynomial grammar, parse expressions into combinable term records, and emit canonical output with deterministic ordering, checked a...

Software Engineering Fundamentals
1
0
15 people solved
Aug 16, 2026
Meta logo
Meta
Hard
Software Engineer

Connect next pointers for each tree level

You are given the root of a binary tree where each node has fields left, right, and next (initially null). For every node, set its next pointer to the...

Coding & Algorithms
2
1
37 people solved
Feb 17, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Discuss project motivation and challenges

Discuss project motivation and challenges Project Deep-Dive (Software Engineer — Phone Screen) Prepare a structured deep-dive on one significant proje...

Behavioral & Leadership
15
0
75 people solved
Jul 29, 2025
Splunk logo
Splunk
Medium
Product Manager

Pricing Splunk’s New Service

Pricing Splunk's New B2B Service You are a Product Manager evaluating how to price a new observability or security analytics service for a mid-size te...

Product / Decision Making
13
0
87 people solved
Jul 4, 2025
Capital One logo
Capital One
Medium
Data Scientist

Audit flight data quality from metadata

You’re given an airline on‑time dataset and a one‑page “Metadata” slide that claims: flight_date (string, local time), dep_time/arr_time (HHMM local),...

Data Manipulation (SQL/Python)
2
0
27 people solved
Oct 13, 2025
Optiver logo
Optiver
Medium
Data Scientist

Compute expected coin flips to meet on octagon

Compute expected coin flips to meet on octagon Meeting Time on a Random Walk Around an Octagon Problem Two independent particles start at opposite ver...

Statistics & MathPuzzles & BrainteasersProbability
7
0
126 people solved
Jul 17, 2025
Uber logo
Uber
Medium
Software Engineer

Implement uniform sampling in squares

Implement uniform sampling in squares Implement a class Square representing an axis-aligned square on the 2D plane that supports sampling a uniformly ...

Coding & AlgorithmsMath & Number TheoryProbability
7
0
90 people solved
Jul 15, 2025
Ford logo
Ford
Medium
Software Engineer

Design EV Telemetry Monitoring App

You are interviewing for a full-stack software role on an electric-vehicle team. Design an internal application that displays live vehicle telemetry, ...

System DesignReal-Time SystemsAI-Assisted Development
3
0
70 people solved
Jan 13, 2026
Stripe logo
Stripe
Medium
Data Scientist Locked

Design a hierarchical forecast for transactions

Design an end-to-end daily forecast of gross merchandise volume for every country and industry segment over the next 90 days, with segment forecasts t...

Machine Learning
8
0
57 people solved
Oct 13, 2025
Concentric Ai logo
Concentric Ai
Medium
Software Engineer Locked

Minimize Population-Weighted Manhattan Travel Cost

Choose an integer grid meeting point that minimizes population-weighted Manhattan travel cost, returning the minimum cost and the lexicographically sm...

Coding & Algorithms
2
0
20 people solved
Aug 10, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Find root from child adjacency lists

You're given an unordered list describing a rooted n-ary tree. Each item is a record of the form {id: int, children: set<int>} listing a node's direct...

Coding & AlgorithmsTreesArrays & Strings
6
0
92 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Design an image copyright-violation detection system

This question evaluates competency in designing scalable machine learning systems for image copyright detection, testing knowledge across computer vis...

ML System DesignComputer VisionEmbeddings & Vector Search
16
0
159 people solved
Feb 12, 2026
Google logo
Google
Medium
Machine Learning Engineer

Discuss dissertation and supervision

Discuss dissertation and supervision Behavioral Interview: Dissertation Overview and Supervisor Collaboration Context You are in an onsite behavioral ...

Behavioral & Leadership
14
0
65 people solved
Jul 29, 2025
Uber logo
Uber
Medium
Software Engineer

Solve minimum rate and subset sum

1) Minimum rate to finish vaults within a deadline: You are given an array vaults of positive integers representing the amount in each vault along a r...

Coding & AlgorithmsBinary SearchDynamic Programming
14
0
108 people solved
Sep 6, 2025
SoFi logo
SoFi
Easy
Software EngineerSenior+ Locked

Return All Nodes Reachable from a Starting Vertex

Practice a SoFi coding interview problem focused on return all nodes reachable from a starting vertex. The prompt emphasizes edge cases, clean impleme...

Coding & Algorithms
0
0
18 people solved
Jul 3, 2026
TikTok logo
TikTok
Medium
Data Scientist

Compute 7-Day Rolling Average of Unique Post Viewers

POST_VIEWS +---------+------------+---------+ | user_id | view_date | post_id | | 101 | 2023-08-01 | 10 | | 102 | 2023-08-01 | 11 |...

Data Manipulation (SQL/Python)
94
0
472 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Data Scientist

Identify Probability of Request Originating from Bad User

Identify Probability of Request Originating from Bad User Measuring Abuse in Friend-Requests: Bayes, Identification, and Precision Scenario A social-n...

Statistics & Math
8
0
54 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Behavioral & Execution Scenarios

Product Manager Phone Screen: Behavioral and Execution Scenarios Provide concrete, role-relevant examples for each situation below. Focus on actions, ...

Behavioral & LeadershipOwnership & ExecutionPrioritization & Tradeoffs
15
0
94 people solved
Jul 4, 2025
Amazon logo
Amazon
Medium
Data Scientist

Explain Propensity Score Matching and Assess Covariate Balance

Explain Propensity Score Matching and Assess Covariate Balance Propensity Score Matching (PSM) Context You have observational data with a binary treat...

Statistics & Math
4
0
80 people solved
Aug 4, 2025
Capital One logo
Capital One
Medium
Data Scientist

Design a better water bottle and test it

Propose 10 mutually exclusive design improvements for a commuter-focused reusable water bottle (e.g., insulation, grip, cap mechanism, filter, materia...

Analytics & Experimentation
3
0
45 people solved
Oct 13, 2025
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