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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
Snapchat logo
Snapchat
Medium
Product Manager

Self-Hosted Open-Weight LLM vs. Paid Model API: Making the Build-or-Buy Call

Your team needs a large language model to power a product feature. You can run an open-source model on your own infrastructure, or you can call a comm...

Product / Decision MakingAI Product ManagementTechnical Tradeoffs for PMs
0
0
4 people solved
Apr 20, 2026
Meta logo
Meta
Medium
Software Engineer

Explain a recent project and measured impact

Behavioral & Leadership: High-Impact Project Deep Dive You are interviewing for a software engineering role. Provide a concise, metrics-driven walkthr...

Behavioral & Leadership
13
0
146 people solved
Sep 6, 2025
Meta logo
Meta
Easy
Data Scientist Locked

How would you evaluate pixel-issue notifications?

This question evaluates a data scientist's skills in experimentation design, metric framework development, causal inference, and measurement-aware ana...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
12
0
122 people solved
Feb 18, 2026
Robinhood logo
Robinhood
Medium
Software Engineer Locked

Design a Fault-Tolerant Distributed Job Scheduler

Design a distributed job scheduler with durable acceptance, due-time sharding, queue dispatch, worker leases, heartbeats, retries, and status queries....

System Design
3
0
40 people solved
Jun 22, 2026
Snapchat logo
Snapchat
Medium
Data Scientist

Compute User Group Stories and Aggregate Story Engagement

user_story_engagement +---------+----------+------------+------------+-------+-------+ | user_id | story_id | story_type | created_at | views | likes ...

Data Manipulation (SQL/Python)
98
0
255 people solved
Jul 12, 2025
TikTok logo
TikTok
Medium
Machine Learning Engineer

Write self-attention and cross-entropy pseudocode

You are asked to explain core Transformer / deep learning components. Part A — Self-attention pseudocode Write clear pseudocode (not full code) for sc...

Machine LearningTransformers & AttentionML Coding
16
0
267 people solved
Feb 12, 2026
Salesforce logo
Salesforce
Easy
Software Engineer Locked

Remove duplicates and find constrained longest subsequence

This question evaluates data structure manipulation and string-processing competencies, specifically linked-list deduplication and finding the longest...

Coding & AlgorithmsDynamic ProgrammingLinked Lists
46
0
340 people solved
Jan 22, 2026
Apple logo
Apple
Medium
Machine Learning Engineer

Implement Kubernetes Service Dependency Queries

You are given an in-memory inventory of Kubernetes-like services. Each service has the following fields: `text Service { id: string // ...

Coding & Algorithms
2
0
44 people solved
Feb 13, 2026
Meta logo
Meta
Medium
Software EngineerSenior+

Evaluate an Integer Arithmetic Expression With Precedence and Parentheses

Given a string s that holds an arithmetic expression, evaluate it and return its integer value. The expression is built from non-negative integer lite...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
1
0
18 people solved
Dec 31, 2025
Cloudflare logo
Cloudflare
Easy
Software Engineer

Explain technical details of a past project

After you give a high-level overview of a recent project, the interviewer follows up with: > Can you walk me through the technical details of this pro...

Behavioral & Leadership
6
0
71 people solved
Dec 8, 2025
Amazon logo
Amazon
Medium
Software Engineer Locked

Support a Struggling Teammate Without Sacrificing Team Health

You lead a team with an important but challenging delivery. Use a concrete situation, your decisions and trade-offs, how you influenced others, and ev...

Behavioral & LeadershipMentoring & Team GrowthOwnership & Execution
16
0
152 people solved
Aug 6, 2026
C3 AI logo
C3 AI
Medium
Data ScientistIntern

Compare How Models Respond to Multicollinearity

Compare How Models Respond to Multicollinearity Compare multicollinearity in unregularized linear regression, L1-regularized linear regression, a deci...

Machine LearningRegression & Statistical ModelingSupervised Learning
2
0
24 people solved
Sep 15, 2026
Meta logo
Meta
Medium
Machine Learning Engineer

Implement sliding-window moving average

Design a class MovingAverage that supports a constructor MovingAverage(k) and a method next(val) returning the average of the last k values from a dat...

Coding & Algorithms
7
2
70 people solved
Jul 31, 2025
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Compute product of array except self

This question evaluates understanding of array manipulation, modular arithmetic, and algorithmic optimization by requiring computation of per-element ...

Coding & Algorithms
4
0
70 people solved
Feb 11, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Describe model-to-GPU execution pipeline

Describe model-to-GPU execution pipeline From Model Definition to GPU Execution: Pipeline and Optimizations You are asked to explain the end-to-end pa...

ML System DesignGPU Programming
10
0
141 people solved
Jul 31, 2025
Google logo
Google
Hard
Product Manager

Why Would Users Care and Why Build It?

You are interviewing for a Google Product Manager role. Assume the product is a new Google AI productivity assistant integrated into Search, Gmail, Do...

Product Design & StrategyAI Product ManagementMetrics & KPIs
43
0
317 people solved
Jun 20, 2025
Anthropic logo
Anthropic
Hard
Software Engineer Locked

Improve concurrency beyond a single lock

This question evaluates mastery of concurrent programming and synchronization concepts, focusing on correctness versus performance trade-offs when pro...

Software Engineering FundamentalsConcurrency
32
0
356 people solved
Feb 1, 2026
Liftoff logo
Liftoff
Medium
Software Engineer

Find degrees of connection in a LinkedIn graph

You are given an undirected graph representing professional connections: - n people labeled 0..n-1 - a list of undirected edges connections, where (a,...

Coding & Algorithms
7
0
74 people solved
Feb 26, 2026
Amazon logo
Amazon
Medium
Software Engineer

Minimum Moves for a Squirrel to Carry Every Nut to a Tree One at a Time

A squirrel and a tree are on a rectangular grid with height rows and width columns, and several nuts lie on other cells of the grid. The squirrel must...

Coding & AlgorithmsGreedy
3
0
23 people solved
Mar 11, 2026
Google logo
Google
Medium
Software Engineer

How would you answer these behavioral prompts?

You are in a behavioral interview. Prepare structured answers (with concrete examples) for the following prompts. Expect follow-ups such as: Why was y...

Behavioral & Leadership
8
0
89 people solved
Jan 6, 2026
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