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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.0k
Companies
570
Updated
10.05.2026
12.0k Questions 570 Companies10.05.2026
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
Netflix logo
Netflix
Medium
Software Engineer Locked

Design an ad frequency capping system

This question evaluates expertise in designing low-latency, high-throughput distributed systems for stateful online decisioning, encompassing competen...

System DesignAds SystemsRate Limiting
36
0
289 people solved
Feb 4, 2026
Mithril logo
Mithril
Medium
Software Engineer Locked

Debug GPU Resource Allocation

This question evaluates debugging and root-cause analysis skills focused on GPU resource allocation, lease management, scoring and preemption policies...

Software Engineering Fundamentals
3
0
41 people solved
May 18, 2026
Affirm logo
Affirm
Medium
Data Engineer

Deliver a concise self-introduction

Deliver a concise self-introduction Behavioral Prompt: 1–2 Minute Self‑Introduction for a Data Engineer Technical Screen Context You are interviewing ...

Behavioral & LeadershipMotivation & FitProject Deep Dive
14
0
129 people solved
Aug 1, 2025
TikTok logo
TikTok
Medium
Machine Learning Engineer

Differentiate virtual and pure virtual functions

Differentiate virtual and pure virtual functions In C++, what is the difference between a virtual function and a pure virtual function? Provide syntax...

Coding & Algorithms
6
0
53 people solved
Aug 8, 2025
Amazon logo
Amazon
Medium
Software Engineer

Describe deadline pressure, challenges, and decision changes

Describe deadline pressure, challenges, and decision changes Behavioral and Leadership Prompts — Software Engineer (Technical Screen) Answer the follo...

Behavioral & Leadership
4
0
46 people solved
Jul 26, 2025
Uber logo
Uber
Medium
Software Engineer Locked

Compute sums and max path in N-ary tree

This question evaluates implementation and traversal skills for N-ary tree data structures, including recursion/DFS techniques, aggregation of node va...

Coding & AlgorithmsTrees
6
0
95 people solved
Feb 11, 2026
Meta logo
Meta
Medium
Software EngineerSenior+ Locked

Solve maze tasks and compute shortest routes

This multi-part question evaluates proficiency in grid-based pathfinding and shortest-path reasoning, debugging and incremental code extension, handli...

Coding & AlgorithmsGrids & MatricesGraphs
6
0
86 people solved
Feb 11, 2026
Wells Fargo logo
Wells Fargo
Medium
Data Scientist

Design Excel visuals for risk results

Design Excel visuals for risk results Excel Dashboard Design: Communicating EL, RWA, and Concentration Risk Context You are preparing an Excel dashboa...

Analytics & Experimentation
4
0
50 people solved
Jul 26, 2025
Capital One logo
Capital One
Medium
Data Scientist

Identify Key Profit Factors for $54 Premium Plan

Identify Key Profit Factors for a $54 Premium Plan A cloud-service or SaaS startup's CEO wants to evaluate monthly profitability for a $54 per month p...

Analytics & Experimentation
67
0
210 people solved
Jul 12, 2025
xAI logo
xAI
Medium
Software Engineer

Design a Retrieval-Augmented Generation (RAG) System

Design a retrieval-augmented generation (RAG) system for a production question-answering product. Users ask natural-language questions, and the system...

ML System Design
3
0
44 people solved
Aug 7, 2025
PayPal logo
PayPal
Hard
Data Scientist

Define Success with Contact Syncing for Growth and Evaluation

Define Success with Contact Syncing for Growth and Evaluation Using "% of users with contacts synced" as a growth driver Context You are a data scient...

Analytics & Experimentation
6
0
55 people solved
Aug 4, 2025
Hive.Ai logo
Hive.Ai
Hard
Software EngineerSenior+ Locked

Track the Median of a Stream

Build a streaming median tracker with two heaps and a literal operation runner. Support incremental inserts, duplicate and negative values, precise od...

Coding & Algorithms
1
0
10 people solved
May 13, 2026
Meta logo
Meta
Medium
Software EngineerSenior+ Locked

Describe Using AI at Work

This question evaluates AI literacy, communication of technical impact, ethical judgment about safeguards, and the ability to quantify business or eng...

Behavioral & LeadershipProject Deep Dive
7
0
96 people solved
May 16, 2026
Bitkernel logo
Bitkernel
Hard
Software Engineer

Implement popup and redirect in JavaScript

You are working in a browser environment and must use vanilla JavaScript only (no external libraries). Task Implement a function showPopupAndRedirect(...

Coding & Algorithms
3
0
54 people solved
Oct 3, 2025
Meta logo
Meta
Hard
Software Engineer

Answer key behavioral prompts effectively

Prepare responses for these behavioral prompts: 1. Proudest project: Describe the project you’re most proud of and why. 2. Conflict: Tell me about a t...

Behavioral & Leadership
2
0
32 people solved
Oct 21, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Set Boundaries and Priorities in a High-Intensity Environment

Explain how you maintain quality and sustainable boundaries in a high-intensity team while deciding when extra effort is justified. Distinguish true i...

Behavioral & Leadership
1
0
12 people solved
May 22, 2026
Meta logo
Meta
Hard
Data Scientist

Determine User Need for In-App Video Call Feature

Determine User Need for In-App Video Call Feature Scenario A consumer messaging app is considering launching an in-app Video Call feature. You have ac...

Analytics & Experimentation
3
0
35 people solved
Aug 4, 2025
Meta logo
Meta
Hard
Data Scientist

Determine Key Metrics and Design A/B Test for Ad Ranking

Determine Key Metrics and Design A/B Test for Ad Ranking Experiment Design: Replacing Rule-Based Ad Ranking with a Recommender Context You are launchi...

Analytics & Experimentation
7
0
56 people solved
Aug 4, 2025
NVIDIA logo
NVIDIA
Medium
Software Engineer

Plan discovery and adoption strategy

New ML Technique: Discovery Questions and Developer Adoption Plan Context: You are a software engineer preparing to introduce a new ML technique to de...

Behavioral & Leadership
5
0
45 people solved
Sep 6, 2025
Roblox logo
Roblox
Hard
Data ScientistIntern

Compute sample size and Bayes posterior

You are implementing two small statistical utilities. Part A — Power / sample size (two-sample z-test) - Input: - x: a 1D numeric array of historica...

Statistics & Math
6
0
64 people solved
Nov 23, 2025
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