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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
Nuro logo
Nuro
Hard
Software Engineer

Implement a thread-safe periodic job scheduler

Implement a thread-safe periodic job scheduler Problem: Periodic Job Scheduler (Concurrency) Implement a small in-process job scheduler that can run p...

Software Engineering FundamentalsConcurrency
39
0
289 people solved
Jul 31, 2025
Rippling logo
Rippling
Medium
Software EngineerIntern

Find median of two sorted arrays

You are given two sorted arrays of integers nums1 and nums2 in non-decreasing order. Let the lengths be m = nums1.length and n = nums2.length. Either ...

Coding & AlgorithmsBinary SearchArrays & Strings
35
0
265 people solved
Nov 20, 2025
Uber logo
Uber
Hard
Data Scientist

Implement sqrt with Newton vs binary search

Implement numerically robust square-root routines and analyze convergence Task 1 — sqrt_newton(x, tol=1e-12) Implement a Python function that returns ...

Coding & AlgorithmsMath & Number TheoryBinary Search
11
0
208 people solved
Oct 13, 2025
LinkedIn logo
LinkedIn
Easy
Data Scientist

Find top countries by population per continent

Table world_population - continent VARCHAR - country VARCHAR - population BIGINT Assume each row is a country’s latest population and (continent, coun...

Data Manipulation (SQL/Python)SQL
8
2
120 people solved
Feb 1, 2026
Google logo
GoogleAmazonMicrosoftGoldman Sachs

Also asked at Microsoft, Goldman Sachs

Hard
Software Engineer

Schedule Tasks with the Least Starting Energy

Problem Each pair in tasks is [actual, minimum]: a task requires at least minimum energy before starting and consumes actual energy on completion. Fin...

Coding & AlgorithmsGreedySorting
1
0
10 people solved
Coursera logo
Coursera
Hard
Software Engineer

Implement Plurality and Runoff Voting

You are given a list of ballots for an election. Each ballot is an ordered list of distinct candidate names, from highest preference to lowest prefere...

Coding & Algorithms
3
0
71 people solved
Feb 12, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Explain What You Want in Your Next Role

Explain next-role motivation by connecting personal goals and evidence-backed strengths to verified team needs, while acknowledging open questions and...

Behavioral & LeadershipMotivation & Fit
1
0
16 people solved
Sep 14, 2026
Google logo
Google
Medium
Software Engineer Locked

Design an Online Coding Judge Platform

This question evaluates a candidate's competencies in large-scale system design, secure multi-tenant execution and sandboxing, capacity planning, queu...

System DesignSandboxing & IsolationSystem Design Fundamentals
142
0
976 people solved
May 2, 2026
Waymo logo
Waymo
Medium
Software EngineerSenior+ Locked

Design a Hybrid Evaluation Platform

This question evaluates skills in designing scalable ML evaluation platforms, covering architecture, data modeling, human-in-the-loop workflows, LLM-b...

ML System DesignSystem Design FundamentalsLLM Evaluation
23
0
160 people solved
Feb 6, 2026
Roblox logo
Roblox
Hard
Data Scientist

Design experiment for homepage tab replacement

Experiment Design: Replacing a Homepage Tab and Measuring User + Ecosystem Impact Assume today is 2025-09-01. Roblox plans to replace an existing home...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
7
0
123 people solved
Oct 13, 2025
Axon logo
Axon
Medium
Software Engineer

Answer tough self-awareness and team questions

In a director-level behavioral interview, answer the following questions clearly and professionally: 1. What is something people have misunderstood ab...

Behavioral & LeadershipSelf-Awareness & GrowthMentoring & Team Growth
27
0
232 people solved
Feb 8, 2026
OpenAI logo
OpenAI
Hard
Machine Learning Engineer

Build and troubleshoot image classification and backprop

Build and troubleshoot image classification and backprop CIFAR-like Noisy Dataset: Baseline, Data Quality Plan, and First-Principles Backprop Context:...

Machine LearningML CodingAnnotation & Label Quality
94
0
715 people solved
Jul 27, 2025
Apple logo
Apple
Medium
Software Engineer

Design a deck of cards with shuffle/draw

Object-Oriented Design + Randomness: A Deck of Cards Design an in-memory model of a standard 52-card playing deck. Your design will be exercised by cl...

Software Engineering FundamentalsLow-Level Design (OOP)Probability
59
0
439 people solved
Mar 1, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Answer project and leadership behavioral questions

Behavioral Questions (project + leadership) Prepare structured answers for the following prompts: 1. Proudest project: Describe a project you’re most ...

Behavioral & Leadership
6
0
94 people solved
Feb 12, 2026
MongoDB logo
MongoDB
Medium
Software EngineerSenior+

How do you answer common HR screen questions?

You are interviewing for a senior-level role and have a first-round HR/recruiter screening call. Prepare strong, concise responses to the following co...

Behavioral & LeadershipMotivation & Fit
20
0
161 people solved
Jan 5, 2026
Apple logo
Apple
Medium
Product Manager

Designing a New iPhone Capability for an Underserved Disability Group

You are a product manager at Apple. Design a new iPhone feature that improves accessibility for people with disabilities. Choose the group of users yo...

Product Design & StrategyAccessibility & Inclusive Design
1
0
10 people solved
Aug 12, 2026
Amazon logo
AmazonGoogle
Medium
Software Engineer

Kth Positive Factor in Ascending Order

Problem Return the kth smallest positive divisor of n,or -1 if n has fewer than k positive divisors. `cpp class Solution { public: int kthFactor(i...

Coding & AlgorithmsMath & Number Theory
0
0
9 people solved
Meta logo
Meta
Medium
Software Engineer Locked

Design Boolean Search over User Status Posts

Design a Boolean search service for status posts using normalized tokens and an inverted index. Cover deterministic AND/OR evaluation, asynchronous fr...

System DesignSearch & Feed SystemsStorage & Sharding
17
0
306 people solved
Aug 8, 2026
Citadel logo
Citadel
Medium
Software Engineer Locked

Implement array merge, round-robin scheduler, and trading simulator

This multipart problem evaluates algorithmic problem solving and systems-design competencies including in-place array manipulation, queue-based schedu...

Coding & AlgorithmsSimulation & State MachinesTwo Pointers & Sliding Window
26
0
269 people solved
Jan 22, 2026
Eightfoldai logo
Eightfoldai
Medium
Software Engineer Locked

Explain Employment Status, Promotions, and Departures

Prepare truthful HR-screen answers about full-time employment, formal promotions, and reasons for leaving, with a clearly labeled fictional example.

Behavioral & LeadershipMotivation & Fit
6
0
44 people solved
Jun 2, 2026
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