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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
Nutanix logo
Nutanix
Hard
Software EngineerSenior+ Locked

Find Peak Memory Usage Across Process Intervals

Compute the maximum simultaneous memory used by half-open process intervals and return the earliest positive-duration interval sustaining that peak. H...

Coding & Algorithms
5
0
45 people solved
Aug 3, 2026
Affirm logo
Affirm
Medium
Software Engineer Locked

Explain Your Role Motivation, Technical Fit, and Engineering Leadership

Build a coherent screening narrative that connects role motivation, backend or infrastructure preference, relevant technologies, reasons for changing ...

Behavioral & Leadership
2
0
33 people solved
Aug 12, 2026
Virtu Financial logo
Virtu Financial
Medium
Software Engineer Locked

Solve Four Online Assessment Coding Tasks

This set of four problems evaluates a candidate's proficiency in core algorithmic competencies including string parsing and bracket validation, bitwis...

Coding & Algorithms
10
0
140 people solved
May 11, 2026
Scale AI logo
Scale AI
Easy
Software Engineer Locked

Present a Metrics-Driven Technical Project

Present a real technical project so a general software-engineering audience can understand its problem, architecture, tradeoffs, and impact. Clarify y...

Behavioral & Leadership
10
0
70 people solved
Jul 27, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Recruiter Screen: Current Work, What You Want Next, Level and Work Authorization

This is a recruiter screen for a software engineering role. It may be presented as an informal conversation that needs no preparation, but the recruit...

Behavioral & LeadershipMotivation & Fit
0
0
17 people solved
Jul 17, 2026
Robinhood logo
Robinhood
Medium
Software Engineer Locked

Build a Top-Three Referral Leaderboard from Chronological Events

Build a referral leaderboard from chronological referrer and referred-user arrays, counting every direct and downstream referral. The prompt returns t...

Coding & Algorithms
5
0
55 people solved
Jun 22, 2026
J.P. Morgan logo
J.P. Morgan
Easy
Software Engineer Locked

Implement an O(1) LRU Cache

Implement a fixed-capacity LRU cache whose successful reads and writes update recency, evicting exactly the least recently used entry while keeping ea...

Coding & Algorithms
17
1
139 people solved
Aug 1, 2026
Two Sigma logo
Two Sigma
Medium
Data Scientist

Analyze Temperatures and Update Regression

You are given historical daily temperature data for New York City and several nearby towns. Each row contains a date, the NYC temperature, and the tem...

Machine LearningML CodingRegression & Statistical Modeling
29
1
332 people solved
Apr 21, 2026
Salesforce logo
Salesforce
Medium
Software EngineerSenior+ Locked

Binary Tree Path Sum

Determine whether a level-order binary tree contains a root-to-leaf path whose node values sum to a target.

Coding & Algorithms
8
0
59 people solved
Aug 12, 2026
Nuro logo
Nuro
Medium
Software Engineer

Design a Scheduler for Weekly Self-Driving Simulation Jobs with Dependent Phases

Design a job scheduler for a self-driving car simulation platform. Every week the platform runs about 10,000 simulation cases. Each case is a job made...

System DesignJob Scheduling & WorkflowsFault Tolerance & Failover
0
0
11 people solved
Aug 21, 2026
Anthropic logo
Anthropic
Hard
Machine Learning EngineerSenior+ Locked

Implement a Simplified DNS Resolver

This question evaluates understanding of DNS semantics (name normalization, A and CNAME records, alias chains and cycle detection), robust error handl...

Coding & AlgorithmsData Structure DesignConcurrency
32
0
297 people solved
May 16, 2026
Google logo
Google
Medium
Software Engineer Locked

Build Prefix Lookup with a Trie

Practice a Google coding interview problem focused on build prefix lookup with a trie. The prompt emphasizes edge cases, clean implementation, and ver...

Coding & Algorithms
13
2
81 people solved
Jul 3, 2026
Figma logo
Figma
Medium
Software Engineer

Check Graph Reachability For File Permissions

You are given a graph representing simplified file permission inheritance. In part 1, the graph is directed and may contain cycles. Return whether the...

Coding & Algorithms
8
0
140 people solved
Apr 9, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+ Locked

Design a Distributed Key-Value Store

This system design question evaluates the ability to architect a horizontally scalable distributed key-value store, covering data partitioning, replic...

System DesignKey-Value StoresPartitioning & Consistent Hashing
52
0
368 people solved
Jun 11, 2026
AMD logo
AMD
Medium
Software Engineer

Compare Single-Agent and Multi-Agent Designs

Compare a single-agent design with a multi-agent design for a complex technical task. Explain when multiple agents help and when they make the system ...

ML System DesignAI AgentsConcurrency
1
0
12 people solved
Sep 14, 2026
OpenAI logo
OpenAI
Hard
Data Scientist

Debug and fix a PyTorch Transformer training loop

Minimal Causal LM Debugging and Optimization You are given a tiny causal decoder-only language model implemented in PyTorch. It appears to "train" but...

Machine LearningML CodingTransformers & Attention
371
0
2517 people solved
Oct 13, 2025
Visa logo
Visa
Medium
Software EngineerSenior+ Locked

Count Perfect Digit-Frequency Substrings

Count all digit substrings in which each distinct digit appears exactly a specified number of times. This challenge tests combinatorial bounds, compac...

Coding & Algorithms
12
0
110 people solved
Aug 3, 2026
Wayfair logo
Wayfair
Medium
Applied Scientist

Evaluate Post-Purchase Recommendation Emails

A retailer proposes sending recommendation emails after a purchase. Decide whether the feature is worth building and how you would test it. Explain th...

Product / Decision MakingBusiness Case AnalysisExperiment Design (A/B Testing)
0
0
8 people solved
Sep 10, 2026
LinkedIn logo
LinkedIn
Hard
Machine Learning Engineer

Design a System That Generates Personalized Recruiter InMails at Scale

Recruiters use LinkedIn Recruiter to find candidates who match a job's requirements among more than one billion LinkedIn members, and a single recruit...

ML System DesignLLM ApplicationsExperiment Design (A/B Testing)
0
0
7 people solved
Aug 26, 2026
Zoox logo
Zoox
Medium
Software Engineer Locked

Lane-Change Safety and Longitudinal Motion Simulation

This question tests practical application of kinematics, feedback control, and object-oriented design in a real-time simulation context. It evaluates ...

Coding & Algorithms
5
0
86 people solved
Jun 5, 2026
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