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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
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Minimize Fuel Cost Across Cities

Find the minimum fuel-purchase cost for traveling through a weighted city network with different local prices and unlimited carrying capacity. The alg...

Coding & AlgorithmsGraphsGreedy
15
0
241 people solved
Aug 3, 2026
Rippling logo
Rippling
Hard
Software EngineerSenior+

Build Reliable Employee-Operations and Expense Intelligence Systems

Build Reliable Employee-Operations and Expense Intelligence Systems Design four connected capabilities: a tagged event counter for dashboards and bill...

System DesignSystem Design FundamentalsAuthentication & Authorization
15
0
231 people solved
May 1, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Implement A Contiguous Memory Allocator With Free-Block Coalescing

Review a contiguous memory allocator coding prompt with malloc, free, first-fit allocation, block coalescing, and a best-fit follow-up. The interview ...

Coding & AlgorithmsData Structure DesignMemory Management
41
1
309 people solved
Jun 5, 2026
Airbnb logo
Airbnb
Medium
Machine Learning Engineer Locked

Minimum Canisters to Top Up an Exact Target

This question evaluates a candidate's grasp of dynamic programming, specifically the unbounded knapsack (coin change) pattern for finding the minimum ...

Coding & Algorithms
9
2
99 people solved
Jun 22, 2026
Decagon logo
Decagon
Easy
Software Engineer

Implement a CSAT Sliding Window Tracker

Design and implement a class that tracks customer satisfaction scores over a sliding time window. A customer support conversation has: - conversation_...

Coding & AlgorithmsData Structure DesignStacks & Queues
20
0
227 people solved
Apr 1, 2026
Legora logo
Legora
Medium
Software Engineer Locked

Deep-Dive into a Technical Project

Walk through one technical project in enough depth to defend the problem, personal scope, architecture, trade-offs, collaboration, setbacks, and outco...

Behavioral & Leadership
12
0
95 people solved
Aug 3, 2026
Google logo
Google
Medium
Software Engineer Locked

Design a Security Monitoring Framework

This question evaluates a candidate's understanding of designing security monitoring frameworks for cloud infrastructure, covering competencies in sys...

System DesignSystem Design FundamentalsOperating Systems
145
0
1093 people solved
May 26, 2026
Two Sigma logo
Two Sigma
Medium
Software EngineerNew Grad Locked

Allocate IPO Shares and Split a Weighted Tree

Solve two independent coding tasks: distribute limited IPO shares under price and round-robin rules, then choose a cut that best divides a weighted ro...

Coding & AlgorithmsTreesSimulation & State Machines
12
0
174 people solved
Jun 28, 2026
Snapchat logo
Snapchat
Hard
Machine Learning Engineer

What Happens When All Neural-Network Weights Start at Zero?

What Happens When All Neural-Network Weights Start at Zero? What happens if every weight in a neural network is initialized to zero? Explain why the a...

Machine LearningNeural Networks & Training
0
0
10 people solved
Sep 12, 2026
Mercor logo
Mercor
Medium
Machine Learning Engineer Locked

Review a Compact GPT-Style Transformer Implementation

Review a compact decoder-only Transformer by tracing tensor shapes through causal multi-head attention, shifted next-token loss, and autoregressive ge...

Machine LearningTransformers & AttentionML Coding
10
0
145 people solved
Jul 8, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

LRU Cache

This question evaluates a candidate's ability to design a data structure combining a hash map with a doubly linked list to achieve constant-time acces...

Coding & Algorithms
11
0
86 people solved
Jun 23, 2026
Akuna Capital logo
Akuna Capital
Medium
Software Engineer Locked

Evaluate a Hexadecimal Bitwise AND

Evaluate a hexadecimal bitwise AND by expanding aligned nibbles into binary and applying the per-bit truth rule. The worked solution converts 0x23 and...

Software Engineering Fundamentals
5
0
36 people solved
Aug 26, 2026
J.P. Morgan logo
J.P. Morgan
Medium
Machine Learning Engineer Locked

Return Every Index Pair Whose Values Sum to a Target

Return every distinct pair of array indices whose values add to a target, including all valid combinations created by duplicates. Skills under review ...

Coding & AlgorithmsArrays & Strings
20
0
164 people solved
Aug 5, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Design Insert/Delete/GetRandom with Weighted Sampling

This Hudson River Trading software engineering question combines insert, delete, random access, and weighted sampling in one data structure design. It...

Software Engineering FundamentalsData Structure DesignMath & Number Theory
18
1
157 people solved
Jul 2, 2026
Palantir logo
Palantir
Easy
Software Engineer

Find Shortest Paths in Road Network

You are reviewing code for a road-network graph. The domain objects are: `java class Location { String name; Location(String name) { this.name...

Coding & Algorithms
23
0
196 people solved
Mar 8, 2026
Ramp logo
Ramp
Hard
Software Engineer AI Locked

Implement and Defend an AI-Assisted Repository Change

Implement a feature in an unfamiliar repository with AI assistance while remaining able to explain and defend every change. Record prompts, respect re...

Software Engineering FundamentalsTesting & QualityCode Quality & Maintainability
25
0
268 people solved
May 25, 2026
Google logo
Google
Medium
Software EngineerSenior+

Tell Me About a Compromise: Outcome, Follow-Through and What You Would Change

This behavioral question is about conflict. Tell me about a time you had to compromise. After your story, expect these probes: - How will you act diff...

Behavioral & LeadershipConflict & Collaboration
1
0
12 people solved
Sep 8, 2026
Bilt Rewards logo
Bilt Rewards
Medium
Software Engineer Locked

Design a Configurable Reward Points Service

Design a configurable reward-points service that ingests transactions, applies versioned rules, and records explainable ledger effects. Explore safe r...

System Design
10
0
78 people solved
Jul 21, 2026
Meta logo
Meta
Hard
Software Engineer

Design and Evaluate a Solver for a 36-Card Sum-Fifteen Game

Design a solver and evaluation plan for a card-removal game. The deck contains 36 cards whose values are between 1 and 9. Each move selects three avai...

Software Engineering FundamentalsBacktracking & RecursionSimulation & State Machines
2
0
18 people solved
Sep 4, 2026
Amazon logo
Amazon
Easy
Software Engineer Locked

Design a Reliable AI Chatbot Architecture

Design a reliable multi-turn AI chatbot grounded in an approved knowledge corpus, with authorization-aware retrieval, visible uncertainty, responsive ...

ML System DesignRetrieval-Augmented GenerationAuthentication & Authorization
16
0
207 people solved
Aug 19, 2026
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