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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
Databricks logo
Databricks
Medium
Software Engineer Locked

Design KV store with sliding-window QPS metrics

This question evaluates designing an in-memory key–value store with sliding-window throughput metrics, testing competencies in data structures, concur...

System DesignData Structure Design
28
0
349 people solved
Nov 8, 2025
Google logo
GoogleMetaAmazonBloomberg

Also asked at Amazon, Bloomberg

Easy
Software Engineer

Sum Binary-Search-Tree Values inside an Inclusive Interval

Problem Given a binary-search-tree root and bounds low and high, return the sum of every node value in the inclusive interval [low,high]. `cpp class S...

Coding & AlgorithmsTrees
1
0
12 people solved
Amazon logo
Amazon
Medium
Software EngineerNew Grad Locked

Resolving a Meaningful Conflict

Prepare a workplace conflict example that fairly presents competing evidence, your decision process, the outcome, and relationship impact.

Behavioral & Leadership
2
0
34 people solved
Aug 20, 2026
Stripe logo
Stripe
Medium
Software Engineer

Process Split-Tender Payments, Expirations, Surcharges, and Refunds

Implement process_events(events, surcharge_rates). Events are chronological comma-separated strings. Pay for each charge with valid gift-card funds fi...

Coding & AlgorithmsSimulation & State MachinesPayments & Ledgers
1
0
23 people solved
Jan 1, 2026
Google logo
Google
Medium
Software EngineerNew Grad Locked

Generate Every Ordered Sum Using Ones and Twos

Generate every ordered string of ones and twos whose digit values sum to a target integer, with no duplicates and lexicographic output. The problem te...

Coding & AlgorithmsBacktracking & Recursion
33
2
199 people solved
Jun 17, 2026
Coinbase logo
Coinbase
Medium
Software Engineer Locked

Explain Your Role in a Production Incident

Explain your role in a production incident across detection, impact assessment, mitigation, diagnosis, recovery validation, communication, and follow-...

Behavioral & Leadership
7
0
62 people solved
May 12, 2026
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
8
0
123 people solved
Feb 11, 2026
Adyen logo
Adyen
Hard
Software Engineer

Design scalable LRU cache and backtracking API

Design scalable LRU cache and backtracking API System Design: Two Production-Ready Services A) Thread-Safe LRU Caching Service Design and describe a p...

System DesignCachingConcurrency
25
0
384 people solved
Jul 26, 2025
TCS logo
TCSMetaGoogleWipro

Also asked at Google, Wipro

Easy
Software Engineer

Check Constant Values along Down-Right Diagonals

Problem Return whether every diagonal running from upper left to lower right in matrix contains one repeated value. Single-cell diagonals satisfy the ...

Coding & AlgorithmsGrids & Matrices
1
0
13 people solved
Meta logo
MetaWells FargoGoogleBolt

Also asked at Google, Bolt

Easy
Software Engineer

Find the Shortest Length After Removing AB and CD

Find the Shortest Length After Removing AB and CD You are given a string s containing only uppercase English letters. In one operation, remove any occ...

Coding & AlgorithmsStacks & QueuesArrays & Strings
0
0
12 people solved
Google logo
GoogleMetaAmazonYandex

Also asked at Amazon, Yandex

Easy
Software Engineer

Count Array Positions Whose Values Appear in the Other Array

Count Array Positions Whose Values Appear in the Other Array You are given integer arrays nums1 and nums2 with lengths n and m. Calculate two directio...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
Anthropic logo
Anthropic
Hard
Machine Learning Engineer Locked

Design a Production ML Serving System

This question evaluates a candidate's competency in operating and scaling ML-powered production systems, focusing on scaling, reliability and fault to...

ML System DesignMLOps & Model ServingModel Monitoring & Drift
23
0
260 people solved
Jan 12, 2026
Snapchat logo
Snapchat
Hard
Machine Learning Engineer Locked

Explain Core ML Training, Evaluation, and Transformer Concepts

Review overfitting, class imbalance, optimizer behavior, classification metrics, and Transformer architecture in one focused ML fundamentals discussio...

Machine Learning
6
0
61 people solved
Aug 28, 2026
Medium
Software Engineer

Check Whether One String Contains Another by Direct Comparison

Given a text string and a pattern string, determine whether the pattern occurs as a contiguous substring of the text. Use a direct brute-force compari...

Coding & AlgorithmsArrays & Strings
1
0
17 people solved
Jan 14, 2026
Waymo logo
Waymo
Hard
Machine Learning Engineer

Generate Instructions for a Blind Maze Robot

You are given a known 2D maze grid with m rows and n columns. Each cell is one of: - #: wall - .: empty cell - E: the exit, which appears exactly once...

Coding & Algorithms
9
0
161 people solved
Jan 31, 2026
Databricks logo
Databricks
Medium
Software Engineer

Design a generic key-value store

Design a Generic, Type-Safe Key-Value Store API Context You're asked to design a reusable key-value store with a generic, user-friendly API. The store...

System DesignKey-Value StoresConcurrency
51
0
543 people solved
Sep 6, 2025
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Optimize HTTP requests for speed and limits

This question evaluates understanding of concurrency, throughput optimization, rate limiting, and trade-offs in designing scalable networked services....

System DesignRate LimitingConcurrency
42
0
557 people solved
Dec 8, 2025
Uber logo
Uber
Medium
Software EngineerIntern Locked

Minimum Delivery Cost Between Cities

This coding interview question evaluates cost optimization and routing over a city network with value-based moves and conditional directed discounts. ...

Coding & AlgorithmsGraphs
19
1
156 people solved
Jul 3, 2026
Google logo
GoogleWaymoMeta

Also asked at Meta, LinkedIn, TikTok, Microsoft, Amazon

Medium
Machine Learning Engineer

Solve meeting scheduling and robot cleaning tasks

You are given two independent coding problems. --- Problem 1: Prioritized Meeting Scheduling You are asked to schedule meetings in a single meeting ro...

Coding & AlgorithmsDynamic ProgrammingBacktracking & Recursion
20
1
236 people solved
Snowflake logo
Snowflake
Easy
Software Engineer

Answer conflict, tight deadline, and mentorship prompts

Behavioral Interview Prompts Answer the following with specific examples from your experience: 1. Conflict: Tell me about a time you had a conflict wi...

Behavioral & LeadershipConflict & CollaborationMentoring & Team Growth
18
0
265 people solved
Mar 1, 2026
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