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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
Clickup logo
Clickup
Medium
Software Engineer

Design an AI-Powered Search System, Focusing on the Search Index

Design an AI-powered search system: users search in natural language and should find relevant content even when their words differ from the wording of...

System DesignSearch & Feed SystemsEmbeddings & Vector Search
0
0
6 people solved
Jul 11, 2026
Google logo
Google
Medium
Software Engineer Locked

Solve Shortest Paths and Rental Allocation

This question evaluates understanding of shortest-path algorithms and reachability in weighted graphs (including directed vs. undirected handling and ...

Coding & Algorithms
12
0
96 people solved
Apr 12, 2026
Crowdstrike logo
Crowdstrike
Medium
Software Engineer Locked

Design a file upload and scanning report system

This question evaluates a candidate's ability to design scalable, secure distributed systems for asynchronous file handling, including API design, dat...

System DesignFile & Media StorageApplication Security
22
0
171 people solved
Jan 22, 2026
Rippling logo
Rippling
Medium
Data Analyst Locked

Find Payroll Bookings in the Latest Active Month by Country

Practice PostgreSQL date logic by finding the latest active payroll-booking month and aggregating amounts by headquarters country. The task tests prec...

Data Manipulation (SQL/Python)SQL
8
0
60 people solved
May 28, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Merge overlapping time intervals efficiently

Given a list of closed intervals [start, end] with 0 <= start <= end, merge all intervals that overlap or touch and return a minimal set of non-overla...

Coding & AlgorithmsIntervals & Scheduling
19
1
262 people solved
Jul 31, 2025
Google logo
Google
Medium
Data Scientist Locked

Estimate unbiased ad scores with many reviewers

Estimate each ad's latent quality, with uncertainty and a defensible ranking, from 10,000 ratings in which 100 reviewers each scored 100 of 1,000 ads ...

Statistics & Math
6
0
106 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer AI

Implement an Expiring Record Store

Implement a level-based in-memory record store. The store contains records identified by a string key. Each record contains fields, where each field i...

Coding & Algorithms
5
0
59 people solved
Apr 1, 2026
Roblox logo
Roblox
Easy
Machine Learning Engineer

Extend counter to per-client rate limiting

You are extending the recent-requests counter to support per-client rate limiting. Each request now includes a clientId identifying the caller. You mu...

Coding & AlgorithmsData Structure DesignTwo Pointers & Sliding Window
8
0
163 people solved
Dec 8, 2025
Amazon logo
Amazon
Medium
Applied Scientist

Explain parallelism and collectives in training

Parallelism strategies and communication in large-scale training You are designing a distributed training setup for very large neural networks that ca...

ML System DesignNeural Networks & Training
11
0
121 people solved
Dec 8, 2025
Bloomberg logo
Bloomberg
Medium
Software Engineer

Design in-memory trade subscription processor

You are asked to design and implement the internal logic of an in-memory trade subscription processor in C++. A simplified interface is provided: `cpp...

System DesignData Structure DesignConcurrency
17
0
344 people solved
Oct 16, 2025
Virtu Financial logo
Virtu Financial
Medium
Data Scientist

Implement Connect Four Winner Detection

Implement a Connect Four-style game engine. The board has 6 rows and 7 columns. Two players alternate turns. On each turn, the current player chooses ...

Coding & Algorithms
14
0
97 people solved
Jan 22, 2026
Microsoft logo
Microsoft
Medium
Product Manager

Behavioral Focus: Collaboration, Customer Obsession & Influence

Behavioral Focus: Collaboration, Customer Obsession, Measuring Impact, and Influence Prepare for a Microsoft Product Manager onsite behavioral loop co...

Behavioral & LeadershipProduct SenseConflict & Collaboration
15
0
152 people solved
Jul 4, 2025
Apple logo
Apple
Medium
Data Scientist

Build leak-safe sklearn model with calibration

You must build an end‑to‑end scikit‑learn pipeline to predict churn_28d at decision time t0 using only features available at or before t0 (no leakage)...

Machine LearningSupervised LearningFeature Engineering
10
0
131 people solved
Oct 13, 2025
Voleon logo
Voleon
Medium
Data Scientist

Explain P-Value Reporting and Bootstrap for Coefficient Estimation

Explain P-Value Reporting and Bootstrap for Coefficient Estimation Scenario Technical screen — statistical inference checks after regression. Question...

Statistics & MathHypothesis TestingSampling & Estimation
41
0
292 people solved
Aug 4, 2025
Liftoff logo
Liftoff
Medium
Software Engineer

Parse and expand an IPv6 address

Implement an IPv6 address parser/normalizer. You are given a string s that may represent an IPv6 address using standard notation: - Up to 8 groups (“h...

Coding & Algorithms
8
0
62 people solved
Feb 26, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Design a Conversational AI Assistant

This question evaluates system design, distributed systems, and real-time inference-serving competencies for building large-scale conversational AI pr...

System DesignReal-Time SystemsLLM Applications
24
0
219 people solved
Jan 29, 2026
Google logo
Google
Medium
Software Engineer

Compute shortest delivery route with dangerous stops

Delivery Route Planning With Dangerous Stops You are given delivery stops (nodes) and a set of routes. Each route is a list of stops, and you can trav...

Coding & AlgorithmsGraphs
19
0
206 people solved
Dec 15, 2025
Peregrine logo
Peregrine
Medium
Software Engineer

Fetch, group, and print paginated activities

Fetch, group, and print paginated activities Given a paginated API that returns (totalCount, activities[]) for a requested page, implement code that i...

Coding & AlgorithmsAPI Integration & HTTP Clients
18
0
170 people solved
Aug 4, 2025
Attentive logo
Attentive
Medium
Software EngineerNew Grad

Design Broadcast Scheduling APIs

Design a broadcast messaging service for companies. Requirements: - Each company has a set of subscribers. - A client can schedule a message to be bro...

System DesignJob Scheduling & WorkflowsDistributed Transactions & Idempotency
25
0
175 people solved
Apr 11, 2026
Asana logo
Asana
Medium
Software Engineer

Design a Collaborative Todo List

Design a collaborative todo-list service — think shared lists where teammates add, edit, assign, reorder, and complete items, and see each other's cha...

System DesignReal-Time SystemsConsistency & Availability
72
0
507 people solved
Apr 2, 2026
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