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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
TikTok logo
TikTok
Medium
Software Engineer

Answer common behavioral questions using STAR

A hiring manager interview focuses on resume/project deep-dives and standard behavioral questions. Prepare structured responses for prompts like: - Te...

Behavioral & Leadership
5
0
93 people solved
Feb 12, 2026
Shield Ai logo
Shield Ai
Easy
Software EngineerSenior+ Locked

Design a Dependency-Aware CI/CD Pipeline

Design a dependency-aware CI/CD platform that schedules DAG jobs on isolated runners and preserves logs, artifacts, and durable execution state. Addre...

System Design
2
0
48 people solved
May 25, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer

Design a stack with max removal

Design a stack-like data structure for integers that supports the following operations efficiently: - push(x): insert x onto the stack. - pop(): remov...

Coding & Algorithms
9
0
112 people solved
Jan 1, 2026
NVIDIA logo
NVIDIA
Medium
Machine Learning Engineer Locked

Explain bias-variance, calibration, and model drift

This question evaluates a candidate's grasp of core machine learning fundamentals—bias–variance trade-off, probability calibration, and model drift—an...

Machine LearningML FundamentalsModel Monitoring & Drift
10
1
192 people solved
Feb 11, 2026
xAI logo
xAI
Hard
Machine Learning Engineer Locked

Implement Distributed Matrix Multiplication

This question evaluates distributed systems and parallel algorithm skills, specifically distributed matrix multiplication, data partitioning (row- and...

Coding & Algorithms
13
0
116 people solved
Jan 28, 2026
Reddit logo
Reddit
Hard
Machine Learning Engineer Locked

Design comment ranking

This question evaluates competency in designing large-scale machine learning ranking systems, testing skills such as candidate generation, label and t...

ML System DesignRanking ModelsFeature Engineering
28
0
203 people solved
Mar 2, 2026
Uber logo
Uber
Medium
Machine Learning Engineer

Design a feed ranking system

Design a machine-learning-based feed ranking system for a consumer product. The system should rank candidate posts or items for a user's home feed in ...

ML System DesignRecommendation SystemsRanking Models
13
0
254 people solved
Mar 1, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Design a distributed tree node counter

Design a distributed tree node counter Distributed Tree Node Count with Two Messages You are given an N-ary tree of machines (one process per node). E...

System DesignDistributed Coordination
67
0
608 people solved
Jul 26, 2025
Google logo
Google
Medium
Data Scientist

Assess Fundamental Statistics Knowledge in Data-Science Interviews

Fundamental Statistics for a Data Science Interview You are given several standard statistics tasks commonly used in a data-science technical screen. ...

Statistics & MathSampling & EstimationProbability
43
0
266 people solved
Jul 12, 2025
Stripe logo
Stripe
Medium
Data Scientist

Scope an open‑ended take‑home under constraints

Take‑Home Planning Prompt: Predict Target Users in 6 Hours Context You have a 6‑hour take‑home assignment to plan how you would predict a product’s ta...

Behavioral & Leadership
4
0
62 people solved
Oct 13, 2025
Google logo
GoogleMeta
Medium
Software Engineer

Best Alternating Sum of an Ordered Selection

Problem Choose a subsequence from the positive integers in nums while preserving their original order. Reindex the selected entries from zero, add tho...

Coding & AlgorithmsDynamic ProgrammingGreedy
0
0
8 people solved
Google logo
GoogleMetaAmazon
Medium
Software Engineer

Maximum Alternating Squared Score

Problem You may rearrange all elements of an integer array nums in any order. For a rearranged array arr, define its alternating squared score as: `te...

Coding & AlgorithmsGreedySorting
0
0
6 people solved
Anthropic logo
Anthropic
Hard
Software Engineer Locked

How do you design an A/B experiment?

This question evaluates competency in online experiment design, including hypothesis framing, metric selection and guardrails, unit of randomization a...

Analytics & ExperimentationExperiment Design (A/B Testing)
25
0
313 people solved
Mar 1, 2026
Uber logo
Uber
Medium
Software Engineer

Solve Balanced Permutations and Tree Reversals

You have 90 minutes to solve the following two independent coding problems. Problem 1: Balanced Prefix Values in a Permutation You are given a permuta...

Coding & AlgorithmsTreesArrays & Strings
15
0
158 people solved
Apr 3, 2026
Upstart logo
Upstart
Medium
Software Engineer

Find max word letter span

Implement a function that, given an input text string, computes the maximum word letter span and returns both (a) the maximum span and (b) the list of...

Coding & AlgorithmsArrays & Strings
32
0
287 people solved
Sep 6, 2025
Google logo
Google
Hard
Machine Learning Engineer

Design multi-GPU matrix multiplication

Multi-GPU MatMul (2 GPUs): Design and Implementation You are given two GPUs connected via NVLink or PCIe. You must compute C = A × B where: - A is sha...

ML System DesignGPU Programming
16
1
256 people solved
Sep 6, 2025
Suno logo
Suno
Medium
Software Engineer

Describe product usage, feedback, and music experience

Behavioral: Product Usage, Feedback, and Music Background Context You are interviewing for a Software Engineer role at a music-tech company. Assume th...

Behavioral & LeadershipMotivation & FitProduct Design & Improvement
46
0
324 people solved
Sep 6, 2025
DoorDash logo
DoorDash
Medium
Data ScientistSenior+ Locked

Evaluate a Bike-Delivery Pilot with Marketplace Metrics

A marketplace experimentation case about launching a bike-delivery option. Candidates select a city, quantify parking friction, define business and op...

Analytics & Experimentation
9
0
81 people solved
Jul 18, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+

Ownership Beyond Your Role: Stepping Outside Your Area and Driving an Improvement

This entry gathers the loop's ownership prompts: stepping into significant work nobody asked you to own, and spotting a way to improve the company and...

Behavioral & LeadershipOwnership & ExecutionLeadership & Influence
1
0
14 people solved
Apr 6, 2026
Concentric Ai logo
Concentric Ai
Medium
Software Engineer Locked

Maximize Profit Under a Bitwise-OR Limit

Choose a subset of items whose combined bitwise OR does not exceed a numeric limit and return the maximum total profit, with the empty subset availabl...

Coding & Algorithms
6
0
85 people solved
Aug 10, 2026
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