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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
Amazon logo
Amazon
Medium
Applied Scientist Locked

LLM Fundamentals: Tokenization Design and KL-Regularized SFT

This question evaluates depth of knowledge in large language model fundamentals, specifically subword tokenization design and KL-regularized supervise...

Machine LearningLLM ApplicationsFine-Tuning & Alignment Techniques
13
0
180 people solved
Jun 18, 2026
Adobe logo
Adobe
Medium
Software Engineer

Explain a Recent Accomplishment

Question What is your most meaningful recent accomplishment? Describe the situation, your contribution, the choices you made, and the evidence that th...

Behavioral & Leadership
1
0
27 people solved
Apr 19, 2026
Netflix logo
Netflix
Medium
Product Manager

Deciding Which AI Agent Actions Need Human Approval and When to Relax That Boundary

AI agents are now capable of carrying out real actions for the people who use them. You are the product manager of an agent product and need to decide...

Product / Decision MakingAI Product ManagementAI Agents
0
0
7 people solved
Aug 23, 2026
Microsoft logo
Microsoft
Medium
Data Scientist

Find common friends from directed edges

You have a directed edge list that records who followed whom. A mutual “friendship” exists only if both directions appear (A→B and B→A). Schema and sa...

Data Manipulation (SQL/Python)GraphsSQL
19
0
128 people solved
Oct 13, 2025
Google logo
Google
Hard
Software Engineer Locked

Design street-view image ingestion and storage system

This question evaluates understanding of large-scale system design for media ingestion, covering distributed ingestion pipelines, durable storage and ...

System DesignFile & Media StorageAuthentication & Authorization
30
0
333 people solved
Jan 22, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Describe a recent innovation you delivered

Behavioral question: “Tell me about a recent innovation you delivered.” Include: - What problem/opportunity you identified - What was novel about your...

Behavioral & LeadershipInnovation & Simplification
3
0
51 people solved
Dec 17, 2025
Amazon logo
Amazon
Medium
Software Engineer Locked

Drone Circular Route — Minimum Total Travel Cost

This question tests a candidate's ability to apply dynamic programming to combinatorial optimization, specifically the Traveling Salesman Problem (TSP...

Coding & Algorithms
7
0
58 people solved
Jun 12, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+ Locked

Design a Metrics Ingestion Pipeline

This question evaluates a candidate's ability to design a large-scale distributed system for ingesting time-series metrics at high throughput. It test...

System DesignObservabilityDistributed Transactions & Idempotency
12
0
105 people solved
Jun 11, 2026
Point72 logo
Point72
Medium
Quantitative Researcher

Explain Transformer Encoder and Decoder Behavior

Answer the following Transformer fundamentals questions in a machine learning interview: 1. What are the main differences between a Transformer encode...

Machine Learning
10
0
91 people solved
Mar 6, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Create a Binary Tree from Parent-Child Descriptions

Problem Build a binary tree from parent-child descriptions. Each description is [parentValue, childValue, isLeft], where isLeft is 1 for a left child ...

Coding & Algorithms
6
0
53 people solved
Mar 12, 2026
Amazon logo
Amazon
Hard
Software Engineer

Design a URL shortening platform

Design a Scalable URL Shortening Platform Context Build a Bitly-like URL shortener that maps long URLs to short codes and performs HTTP redirection re...

System DesignSystem Design FundamentalsAPI Design
20
0
225 people solved
Sep 6, 2025
Google logo
Google
Hard
Software Engineer

Reason About CPU Microarchitecture and Simulator Design

Reason About CPU Microarchitecture and Simulator Design Answer the following systems questions for a modern out-of-order CPU. State architectural assu...

Software Engineering Fundamentals
4
0
36 people solved
Mar 27, 2026
Apple logo
Apple
Hard
Data Scientist

Evaluate a model and choose metrics

Fraud-screening model evaluation under class imbalance and asymmetric costs Context You operate a binary classifier that flags e‑commerce orders for m...

Analytics & ExperimentationModel EvaluationModel Monitoring & Drift
18
0
189 people solved
Oct 13, 2025
Trexquant logo
Trexquant
Medium
Software Engineer

Implement Trie search with wildcard matching

Design a text dictionary using a Trie. Support the following operations: - addWord(word): Insert a lowercase English word. - search(pattern): Return t...

Coding & AlgorithmsString Algorithms
10
0
124 people solved
Sep 1, 2025
Meta logo
Meta
Medium
Software EngineerSenior+ Locked

Design a Reliable Notification System

Design notification storage, recipient fanout, high-traffic processing, and reliable delivery with recoverable state and long-term operational trade-o...

System DesignReal-Time SystemsDistributed Transactions & Idempotency
5
0
72 people solved
Aug 25, 2026
ByteDance logo
ByteDance
Medium
Software EngineerIntern Locked

Choose Precision, Recall, or F1 for Agent Evaluation

Choose precision, recall, or F1 to evaluate three agents by error costs, decision thresholds, and representative ground-truth evidence.

Machine LearningModel Evaluation
5
0
42 people solved
Aug 23, 2026
Meta logo
Meta
Medium
Site Reliability Engineer Locked

Implement a Streaming VMStat Alert

This question evaluates streaming data processing skills, sliding-window counting algorithms, and efficient online state management for metric monitor...

Coding & AlgorithmsObservabilityStacks & Queues
8
0
113 people solved
Apr 6, 2026
Apple logo
Apple
Medium
Data Scientist Locked

Diagnose post-release conversion regression rigorously

Design an analysis to decide whether a full rollout of version 7.3 caused signup conversion to fall from 5.4% to 4.9%, then recommend what to do next....

Analytics & ExperimentationCausal InferenceMetric Diagnostics
19
0
138 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer Locked

Explain Collaboration, Ambiguity, and Prioritization

This question evaluates collaboration, ambiguity management, and prioritization competencies, focusing on interpersonal communication, stakeholder ali...

Behavioral & Leadership
3
0
64 people solved
May 14, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software EngineerIntern

Compare C++ Virtual Dispatch with CRTP

Explain how C++ virtual functions are commonly implemented and compare runtime polymorphism with the Curiously Recurring Template Pattern. Discuss obj...

Software Engineering Fundamentals
5
0
48 people solved
May 5, 2025
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