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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
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
Snapchat logo
Snapchat
Medium
Machine Learning Engineer Locked

Find all quadruplets summing to target

This question evaluates competency in array algorithms, combinatorial search, and handling duplicates with index-uniqueness constraints, and falls und...

Coding & Algorithms
5
0
45 people solved
Feb 12, 2026
Ramp logo
Ramp
Medium
Software Engineer Locked

Implement wildcard querySelector to extract URL

This question evaluates implementation skills for a simplified selector engine, DOM traversal and manipulation, wildcard attribute pattern matching, a...

Coding & AlgorithmsParsing & InterpretersTrees
49
0
414 people solved
Jan 18, 2026
Liftoff logo
Liftoff
Medium
Software Engineer

Implement minimal RLE encode/decode with max run K

You are given a run-length encoding (RLE) format that compresses a string by grouping consecutive repetitions of a short substring. Encoding format An...

Coding & Algorithms
10
0
95 people solved
Feb 11, 2026
Airbnb logo
Airbnb
Hard
Software Engineer

Design a dynamic rental pricing system

System Design: ML-Driven Nightly Pricing for Short-Term Rentals Context Design a production ML system that recommends (and optionally auto-sets) night...

ML System DesignExperiment Design (A/B Testing)Feature Engineering
19
0
182 people solved
Aug 12, 2025
Faire logo
Faire
Medium
Software Engineer

Print a Centered Pascal Triangle

Given a positive integer height, generate the first height rows of Pascal's triangle and print them as a centered text triangle. Formatting requiremen...

Coding & Algorithms
3
0
66 people solved
Apr 10, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Implement string matching with follow-up

Question Given a text T and a pattern P, implement a function firstIndex(T, P) that returns the starting index of the first occurrence of P in T, or -...

Coding & Algorithms
15
0
107 people solved
Jul 31, 2025
IXL Learning logo
IXL Learning
Easy
Software Engineer

Debug Kubernetes crashes and review Python ingestion script

Part A — Kubernetes: Pod/Container Crash Debugging You are on call and a service deployed to Kubernetes starts failing. The Pod shows CrashLoopBackOff...

Software Engineering FundamentalsContainers & OrchestrationDebugging
6
0
85 people solved
Feb 11, 2026
Lyft logo
Lyft
Hard
Data Scientist

How to Target Coupon Users

A ride-sharing company such as Lyft wants to launch a coupon campaign to increase commuter rides, but the coupon budget is limited. How would you anal...

Analytics & ExperimentationPersonalizationCausal Inference
12
0
160 people solved
Dec 16, 2025
Coinbase logo
Coinbase
Medium
Software Engineer

Handle recruiter transparency and background checks

Handle recruiter transparency and background checks Candidate Disclosures, Background Checks, and Professional Communication Context You are interview...

Behavioral & LeadershipEthics & ResponsibilityCommunication & Stakeholders
22
0
154 people solved
Jul 31, 2025
eBay logo
eBay
Medium
Software Engineer Locked

Design a Top-K trending service

This question evaluates skills in distributed system design, real-time stream processing, scalable aggregation, windowing semantics, and trade-offs ar...

System DesignReal-Time SystemsBatch & Stream Processing
7
0
133 people solved
Jan 15, 2026
Oracle logo
Oracle
Medium
Software Engineer

Detect whether a directed graph given as an edge list contains a cycle

You are given a directed graph with n nodes labeled 0 to n - 1 and a list of directed edges. Return whether the graph contains at least one directed c...

Coding & AlgorithmsGraphs
0
0
3 people solved
Aug 1, 2026
Affirm logo
Affirm
Medium
Software Engineer Locked

Find shortest unique substring per word

This question evaluates string-processing and algorithmic problem-solving skills, focusing on identifying substrings unique to each word while handlin...

Coding & AlgorithmsString AlgorithmsArrays & Strings
17
0
128 people solved
Oct 27, 2025
Asana logo
Asana
Medium
Software Engineer

Implement core puzzle/array/grid routines

You may be asked to solve one or more of the following coding exercises (write clean, testable code; discuss time/space complexity): 1) Jigsaw assembl...

Coding & AlgorithmsBacktracking & RecursionSimulation & State Machines
51
0
424 people solved
Jan 7, 2026
Snapchat logo
Snapchat
Medium
Software Engineer

Determine Whether a Word Transformation Exists

Given a beginWord, an endWord, and a list of valid words wordList, determine whether it is possible to transform beginWord into endWord. Rules: - Each...

Coding & Algorithms
3
0
56 people solved
Jan 25, 2026
Blink logo
Blink
Hard
Software Engineer Locked

Design a Support Ticket Processing System

Prepare for a Blink system design interview about design a support ticket processing system. This question focuses on requirements, architecture, trad...

System Design
2
0
22 people solved
Jun 28, 2026
Klaviyo logo
Klaviyo
Hard
Software Engineer

Design banking with scheduled transfers and merges

Design banking with scheduled transfers and merges In-Memory Banking System with Scheduled Payments and Account Merges Design and implement a single-t...

System DesignData Structure DesignSimulation & State Machines
21
0
150 people solved
Jul 15, 2025
Apple logo
Apple
Medium
Software Engineer Locked

Explain key React concepts and error handling

This question evaluates competency in React fundamentals, including understanding of the Virtual DOM, Hooks usage, React 18 concurrent features, serve...

Software Engineering FundamentalsReact & UI FrameworksState Management
15
0
118 people solved
Feb 12, 2026
Oracle logo
Oracle
Medium
Software EngineerSenior+ Locked

Find the Lexicographically Maximum Suffix

Return the lexicographically greatest nonempty substring of a lowercase string with up to 400,000 characters. Respect standard prefix ordering without...

Coding & Algorithms
4
0
40 people solved
Aug 21, 2026
TikTok logo
TikTok
Easy
Data Scientist

Write SQL for TikTok Live creator metrics

You are analyzing TikTok Live sessions and their engagement. Tables live_room Each row is a Live session (“room”) launched by a creator. | column | ty...

Data Manipulation (SQL/Python)SQL
20
0
163 people solved
Oct 9, 2025
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Build a Solution That Benefits Teams Beyond Your Own

Describe a technical solution that created measurable value for teams beyond your own. Explain how you confirmed the need, chose a reusable boundary, ...

Behavioral & Leadership
1
0
13 people solved
Aug 22, 2026
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