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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
NVIDIA logo
NVIDIA
Medium
Software EngineerSenior+

Introduce yourself for a senior role

Prompt You’re interviewing for a senior engineering role. 1. Give a concise self-introduction (2–3 minutes). 2. Highlight 1–2 impactful projects, your...

Behavioral & LeadershipMotivation & FitProject Deep Dive
34
0
247 people solved
Jan 6, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Find Top K Frequent Elements

Question LeetCode 347. Top K Frequent Elements – given an integer array nums, return the k most frequent elements. Initial requirement: return the top...

Coding & Algorithms
11
0
88 people solved
Jul 29, 2025
Oracle logo
Oracle
Medium
Software EngineerSenior+ Locked

Design an Internal Metrics Ingestion Service

Design an internal metrics-ingestion service, covering client agents, sharding, availability, and separation of write ingestion from query serving.

System Design
5
0
46 people solved
Aug 14, 2026
Walmart Labs logo
Walmart Labs
Medium
Data Scientist

Find Index Pairs of Matching Elements in Arrays

Scenario Marketing analytics team needs to find common elements between two sorted arrays of user IDs. Question Given two sorted integer arrays withou...

Coding & Algorithms
7
0
108 people solved
Aug 4, 2025
Google logo
Google
Medium
Data Engineer

User Activity Analytics: Unique Users per Activity and Average Time on Site

User Activity Analytics You are given a collection of records, where each record captures a single user's action on a website. Each record is a dictio...

Coding & Algorithms
5
0
66 people solved
May 15, 2025
ByteDance logo
ByteDance
Medium
Software EngineerIntern

Count House Segments After Sequential Demolitions

Problem Distinct houses occupy integer positions on a number line. Houses at consecutive positions belong to the same segment. Remove houses in the gi...

Coding & Algorithms
6
0
73 people solved
Apr 20, 2026
Disney logo
Disney
Medium
Data Scientist

Solve matrix add, frequency count, longest consecutive

You are asked to solve the following 3 coding tasks (in any language). Implement each as a function. 1) Add two matrices Input: Two 2D integer arrays ...

Coding & Algorithms
12
0
82 people solved
Sep 13, 2025
Capital One logo
Capital One
Medium
Software Engineer

Implement 2D transforms and find max-lit point

Part A — 2D array transforms: Given an m×n integer matrix, implement the following in-place operations with clear function boundaries and complexity: ...

Coding & AlgorithmsGrids & MatricesIntervals & Scheduling
8
0
137 people solved
Sep 6, 2025
Google logo
Google
Medium
Machine Learning Engineer

Explain modeling challenges and fixes

Model Development Challenges: Detection, Alternatives, Solution, Evidence Context: In a technical screen for a Machine Learning Engineer, you are aske...

Machine LearningProject Deep DiveModel Evaluation
18
0
163 people solved
Sep 6, 2025
Google logo
GoogleMicrosoftBloomberg

Also asked at Bloomberg, Amazon, Meta

Easy
Software Engineer

Test for an Exact Descendant Subtree Match

Problem Return whether some node of root, together with all its descendants, forms a tree identical to subRoot in both shape and values. The whole roo...

Coding & AlgorithmsTrees
1
0
12 people solved
Pinterest logo
Pinterest
Medium
Software Engineer

Decide target via subsequence plus/multiply expression

Question Given a sequence of positive 32-bit integers A and an integer target, determine whether there exists a subsequence of A (preserving order, us...

Coding & AlgorithmsBacktracking & Recursion
21
0
309 people solved
Sep 6, 2025
Citadel logo
Citadel
Medium
Site Reliability Engineer

Solve Five Core Python Data-Processing Exercises

Solve Five Core Python Data-Processing Exercises Implement and explain: repeat a message n times with blank lines; square a list then reverse it; Fizz...

Software Engineering Fundamentals
7
0
51 people solved
May 8, 2026
Asana logo
Asana
Medium
Product Manager

Vet and stage the launch of an inherited product list as a new e-commerce PM

You have just joined an e-commerce company as a product manager. Before you arrived, the team drew up a list of "suggested products". Explain how you ...

Product / Decision MakingPrioritization & TradeoffsExperiment Design (A/B Testing)
1
0
18 people solved
Feb 21, 2026
LinkedIn logo
LinkedIn
Easy
Data Scientist Locked

Design a short-video recommender system

This question evaluates a data scientist's competency in end-to-end machine learning system design for recommender systems, including retrieval and ra...

Machine LearningRecommendation SystemsRanking Models
28
0
313 people solved
Feb 1, 2026
Capital One logo
Capital One
Hard
Data Scientist

Present and defend your data challenge end-to-end

10–12 Minute Interviewer-Driven Walkthrough: Recent Data Challenge Provide a concise, structured walkthrough of a real project you led end-to-end. Ass...

Machine Learning
16
0
114 people solved
Oct 13, 2025
Google logo
Google
Medium
Software EngineerNew Grad

Design a Dormitory Room-Assignment System (OOD)

You are asked to design the object-oriented model for a dormitory room-assignment system. You are given a set of students and a set of rooms. Each roo...

Software Engineering Fundamentals
6
0
66 people solved
Feb 22, 2026
Tekion logo
TekionGoogle
Medium
Software Engineer

Longest Balanced Binary Substring After at Most One Swap

Longest Balanced Binary Substring After at Most One Swap You are given a binary string s. You may swap the characters at any two positions at most onc...

Coding & AlgorithmsArrays & Strings
1
0
9 people solved
Apple logo
Apple
Medium
Software Engineer

Discuss feedback, AI work, learning, and motivation

Behavioral & Leadership Interview — Software Engineer (Onsite) Instructions Answer concisely with specific examples, your actions, and measurable outc...

Behavioral & Leadership
16
0
138 people solved
Sep 6, 2025
Pilot logo
Pilot
Easy
Software EngineerNew Grad

Solve Anagram Without Sorting

Given two strings s and t, return true if t is an anagram of s, and false otherwise. You may not sort either string. An anagram uses exactly the same ...

Coding & Algorithms
5
0
43 people solved
Jan 7, 2026
Amazon logo
Amazon
Medium
Data Scientist

Solve two-sum variants at scale

Base task: Given nums = [3, 1, 2, 2, 4] and target = 4, return the 0-based index pair (i, j) with i < j such that nums[i] + nums[j] = target. If multi...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
17
0
131 people solved
Oct 13, 2025
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