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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
570
Updated
10.05.2026
11.9k 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
Google logo
Google
Hard
Software Engineer

Design autonomous cloud monitoring and remediation

Design an AI-Assisted Monitoring and Auto-Remediation Service Context Design a service that monitors cloud applications across multiple providers, col...

ML System DesignReliability & SREObservability
11
0
145 people solved
Sep 6, 2025
TikTok logo
TikTok
Medium
Product Manager

Behavioral Fit & Leadership at TikTok

Behavioral Interview Prompt: Product Manager Fit and Leadership at TikTok You are preparing for a TikTok Product Manager interview focused on behavior...

Behavioral & LeadershipMotivation & FitConflict & Collaboration
18
0
128 people solved
Jul 4, 2025
Dropbox logo
Dropbox
Medium
Software Engineer

Design a recursive distributed file crawler

Design a distributed service that crawls a large file system starting from a root path. A client should be able to call an API to start a crawl job, a...

System DesignJob Scheduling & WorkflowsDistributed Transactions & Idempotency
9
0
114 people solved
Jan 25, 2026
Meta logo
Meta
Medium
Data Scientist

Tune fraud threshold under review capacity and costs

Fraud Triage Thresholding with Calibrated Scores Context You have a fraud model that outputs a calibrated score s ∈ [0, 1] per account, where s ≈ P(fa...

Machine Learning
5
0
50 people solved
Oct 13, 2025
C3 AI logo
C3 AI
Medium
Software EngineerNew Grad

Evaluate Factual Accuracy and Consistency in a Domain-Specific RAG Chatbot

A retrieval-augmented generation (RAG) chatbot assists doctors in investigating rare diseases. Factual accuracy and consistency are important, but ret...

Machine LearningLLM EvaluationRetrieval-Augmented Generation
0
0
5 people solved
Jan 23, 2026
Meta logo
Meta
Medium
Software Engineer

Implement merge-in-place and group cyclic-equivalent strings

You are given two ascending arrays to merge in place and a separate grouping task: Part A — In-place merge without known sizes: - Array A contains sor...

Coding & Algorithms
7
0
63 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Software Engineer

Solve tree leaf sum and target indices search

Question LeetCode 129. Sum Root to Leaf Numbers LeetCode 2089. Find Target Indices After Sorting Array (array already sorted; require O(log n) time) h...

Coding & Algorithms
9
0
46 people solved
Jul 29, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Write SQL for cold-complaint diagnostics with LAG/QUALIFY

Using BigQuery/Snowflake-style SQL (CTEs required; use LAG and QUALIFY), answer the tasks below. Assume 'today' is 2025-09-01. Schema and small sample...

Data Manipulation (SQL/Python)
5
0
35 people solved
Oct 13, 2025
Google logo
Google
Easy
Software Engineer

Describe conflict, ambiguity, and process improvement

Prepare STAR-style responses for these behavioral prompts: - Tell me about a time you had a conflict with your manager. - Tell me about a time you imp...

Behavioral & Leadership
9
0
74 people solved
Jan 1, 2026
Uber logo
Uber
Medium
Software Engineer

Find a Bounded Subarray and Largest Square

Implement the following two independent coding tasks. Task A: Longest bounded-range subarray Given an integer array nums and an integer limit, return ...

Coding & Algorithms
3
0
30 people solved
Apr 12, 2026
Meta logo
Meta
Hard
Data Scientist

Detect leakage and evaluate a prediction model

Churn Prediction Model: Leakage, Validation, KPIs, Interpretation, Monitoring Context: You inherit a weekly-scored model that predicts whether a user ...

Machine Learning
8
0
80 people solved
Oct 13, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Explain Why You Want to Change Roles

Explain why you are considering a role change and what durable qualities you seek next, without criticizing people or sharing confidential information...

Behavioral & Leadership
1
0
17 people solved
May 22, 2026
Amazon logo
Amazon
Medium
Software Engineer

Design a no-repeat top-frequency music player

Design and implement a music player that receives song lists from new users and returns songs to play in frequency order without repeating a song in t...

Coding & Algorithms
6
0
74 people solved
Mar 22, 2025
Uber logo
Uber
Medium
Software Engineer Locked

Maximize Throughput and Count Trigger Components

This question evaluates proficiency in algorithmic optimization under resource constraints (maximizing pipeline throughput within a budget) and in mod...

Coding & Algorithms
2
0
20 people solved
May 28, 2026
Instacart logo
Instacart
Medium
Data Scientist

Describe cross-functional collaboration under time pressure

Tell me about a time you led a cross-functional initiative with ambiguous requirements and severe time pressure. The interviewer asked generic or shif...

Behavioral & Leadership
6
0
72 people solved
Oct 13, 2025
Applied Intuition logo
Applied Intuition
Hard
Software Engineer

Walk through a recent project design

System Design: End-to-End Project Walkthrough Provide a structured walkthrough of a recent project you led end-to-end. Organize your answer using the ...

System DesignProject Deep DiveSystem Design Fundamentals
27
0
193 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Data Scientist

Compute binary-tree diameter via return-only DFS

Given the root of a binary tree, compute its diameter defined as the number of edges on the longest path between any two nodes. Implement a DFS that r...

Coding & Algorithms
8
0
58 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Product Manager

Hiking App: Design, Metrics, and Go-to-Market

Hiking App: Design, Metrics, and Go-to-Market You are a Product Manager asked to design a consumer hiking mobile app from zero. Assume iOS and Android...

Product / Decision MakingProduct SenseMetrics & KPIs
18
0
87 people solved
Jul 4, 2025
Instacart logo
Instacart
Hard
Data Scientist

Diagnose Sunday Miami same‑day outages

Marketplace stability case: same‑day disablement on Sunday afternoons (Miami) Context Instacart offers two fulfillment modes: - Same‑day delivery (rea...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
8
0
100 people solved
Oct 13, 2025
Citadel logo
Citadel
Hard
Data Scientist

Design regression and classification ML pipelines

Take‑Home: Two End‑to‑End ML Workflows on Tabular Data Objective Design and implement two complete machine learning workflows on tabular data (typical...

Machine LearningSupervised LearningFeature Engineering
16
0
112 people solved
Sep 6, 2025
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