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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
Fanatics logo
Fanatics
Hard
Software Engineer

Design a retail trading platform

Design a Retail Stock Trading Platform (Robinhood-like) Design a mobile-first retail stock trading platform for U.S. equities, similar to Robinhood. T...

System DesignTrading SystemsPayments & Ledgers
63
0
565 people solved
Sep 6, 2025
Netflix logo
Netflix
Hard
Software Engineer Locked

Design an ads audience targeting system

This question evaluates skills in large-scale system design, data modeling for massive audience membership, low-latency lookup mechanisms, and operati...

System DesignAds SystemsStorage & Sharding
121
1
1134 people solved
Jan 20, 2026
IBM logo
IBM
Medium
Software Engineer Locked

Count Replacements Needed to Separate Equal Adjacent Characters

Count the minimum replacements needed to eliminate equal adjacent characters across many lowercase words by reducing each maximal repeated run without...

Coding & Algorithms
8
0
77 people solved
Jun 16, 2026
Rippling logo
Rippling
Medium
Software EngineerSenior+

Design a News Aggregation Feed

Design a large-scale news aggregation feed similar to a major news app. The system ingests a large volume of raw news articles from many sources, incl...

System DesignSearch & Feed SystemsRanking Models
11
1
205 people solved
Jan 17, 2026
Uber logo
Uber
Easy
Software EngineerNew Grad Locked

Sort a String of Clothing Sizes

Sort a string containing only S, M, and L into size order in linear time. Extend the discussion to custom token orderings, unknown-size behavior, empt...

Coding & Algorithms
8
0
62 people solved
Jun 24, 2026
Amazon logo
AmazonGoogle
Hard
Software Engineer

Sum Squared Distinct Counts Across Large Subarray Inputs

Sum Squared Distinct Counts Across Large Subarray Inputs You are given a 0-indexed integer array nums. For a nonempty contiguous subarray nums[i..j], ...

Coding & AlgorithmsTreesArrays & Strings
0
0
8 people solved
Cloudflare logo
Cloudflare
Easy
Software Engineer

Explain debugging methodology for production issues

In a technical interview, you are asked: > What is your methodology when debugging or when something goes wrong? Describe a systematic approach you wo...

Software Engineering FundamentalsDebugging
11
0
123 people solved
Dec 8, 2025
Airbnb logo
Airbnb
Medium
Machine Learning EngineerSenior+

Discuss ML Project Tradeoffs

You are interviewing for a senior machine learning role and are asked to discuss a past recommendation or prediction project in depth. Use one concret...

Machine Learning
8
0
95 people solved
Apr 28, 2026
Coinbase logo
Coinbase
Medium
Product Manager

Coinbase Card Usage Decline: Root-Cause Diagnosis and Recovery Plan

You are a PM at Coinbase. The team has seen usage of the Coinbase card fall. Work out why that might be happening, and propose ways to address it. `hi...

Analytics & ExperimentationMetric Diagnostics
0
0
8 people solved
Jul 23, 2026
eBay logo
eBay
Medium
Software Engineer Locked

Determine Whether a String Is a Valid Number

Determine whether an ASCII string is a valid signed integer or decimal with an optional signed exponent under a precise grammar. Reject whitespace, in...

Coding & Algorithms
7
0
55 people solved
Aug 1, 2026
Axon logo
Axon
Medium
Software Engineer

Explain your career path and leadership impact

Context: This is a hiring-manager behavioral screen for an Engineering Manager / Tech Lead–type role. Answer the following prompts clearly and concret...

Behavioral & LeadershipMotivation & FitLeadership & Influence
13
0
208 people solved
Feb 9, 2026
Upstart logo
Upstart
Medium
Software Engineer Locked

Implement four string-processing functions

This question evaluates string-processing and list-manipulation skills, including character membership testing and sequence filtering, reflecting comp...

Coding & AlgorithmsArrays & Strings
18
0
145 people solved
Jan 5, 2026
Google logo
Google
Medium
Software Engineer Locked

Consolidate On-Call Rotation Segments

This question evaluates proficiency with interval manipulation, set management, sorting and event ordering, and the use of appropriate data structures...

Coding & Algorithms
26
0
156 people solved
May 25, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer Locked

Design a bidirectional data sync dashboard

This question evaluates distributed system design skills focused on reliable bidirectional data synchronization, conflict resolution, event ingestion,...

System DesignDistributed Transactions & IdempotencyAPI Integration & HTTP Clients
16
0
144 people solved
Feb 9, 2026
Ramp logo
Ramp
Medium
Software Engineer

Implement multi-level task manager APIs

You are implementing an in-memory task management system with a set of APIs that evolve over 4 levels. All APIs receive a timestamp: int parameter. Un...

Coding & AlgorithmsLow-Level Design (OOP)Intervals & Scheduling
39
0
351 people solved
Jan 22, 2026
Robinhood logo
Robinhood
Easy
Software Engineer

Compute trigger counts in a DAG

You are given a directed acyclic graph (DAG) that represents trigger dependencies between tasks. - Each node represents a task. - There is exactly one...

Coding & AlgorithmsGraphsDynamic Programming
16
0
213 people solved
Dec 8, 2025
Rippling logo
Rippling
Easy
Software Engineer

Implement an article voting tracker

Coding: Article Voting Tracker Design and implement a data structure to track users’ votes (upvote/downvote) on articles. Operations Implement functio...

Coding & AlgorithmsData Structure Design
40
0
732 people solved
Dec 5, 2025
Google logo
GoogleMetaMicrosoft

Also asked at Microsoft, Amazon, Bloomberg, Zoho, Cognizant

Easy
Software Engineer

Find the Highest Point from Altitude Changes

Problem Begin at altitude zero. The entries of gain are the altitude changes on successive route legs. Return the highest altitude reached at any rout...

Coding & AlgorithmsArrays & Strings
1
0
13 people solved
Ngrok logo
Ngrok
Medium
Software Engineer

Generate Color Feedback for a Word Guess

Generate Color Feedback for a Word Guess Given an answer string and a guess of the same length, produce one color for each guessed character: - "green...

Coding & Algorithms
1
0
30 people solved
May 1, 2026
Google logo
Google
Medium
Software Engineer

Simulate an In-Memory Directory Tree with mkdir, ls, Append and Read

Reported from a Google software engineering coding interview. Simulate a small in-memory file system. It starts with only the root directory /. You re...

Coding & AlgorithmsData Structure DesignTrees
2
0
29 people solved
Mar 4, 2026
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