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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.1k
Companies
579
Updated
10.10.2026
12.1k Questions 579 Companies10.10.2026
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
Stripe logo
Stripe
Medium
Machine Learning EngineerSenior+

Design payment fraud detection

Design a machine learning system for fraud detection in an online payment platform. The system should score transactions before or shortly after autho...

ML System DesignFeature EngineeringSupervised Learning
17
0
218 people solved
Apr 18, 2026
Capital One logo
Capital One
Medium
Software Engineer Locked

Count Pairs of Cyclically Equivalent Integers

Count unordered index pairs whose non-negative integers have decimal strings equivalent under cyclic rotation. The algorithm challenge emphasizes a pr...

Coding & AlgorithmsArrays & Strings
12
0
178 people solved
Jul 21, 2026
Netflix logo
Netflix
Medium
Software Engineer Locked

Discuss Collaboration, Feedback, and Conflict

Prepare three real examples that demonstrate collaboration, response to feedback, and constructive conflict. For each, clarify the shared goal, your c...

Behavioral & Leadership
4
0
60 people solved
Jun 24, 2026
OpenAI logo
OpenAI
Medium
Product Manager

Design animal translator and premium tier

Answer two product strategy prompts: 1. Design an animal-human translation product. Explain how you would design the product, choose initial target us...

Product Design & StrategyProduct SenseGrowth & Monetization
14
0
217 people solved
Mar 7, 2025
Cognitiv logo
Cognitiv
Hard
Software Engineer Locked

Reason About Duplicate Data and Scaling in Spark

Explain how to define and remove duplicate data in Spark, then scale the pipeline as volume and traffic increase. Candidates must translate business i...

Software Engineering Fundamentals
3
0
38 people solved
Jul 28, 2026
Vercel logo
Vercel
Medium
Software Engineer

Design hit counter for last 5 minutes

You are launching a new webpage and need a last-minute server-side metric to track popularity in real time. Implement a hit counter that supports the ...

Coding & AlgorithmsData Structure DesignStacks & Queues
28
0
195 people solved
Jan 1, 2026
ByteDance logo
ByteDance
Medium
Software Engineer

Explain a Project's Implementation and Design Decisions

Choose a project from your experience and explain how you implemented it. Walk through the main components and the path of a representative request or...

Behavioral & LeadershipProject Deep DiveSystem Design Fundamentals
2
0
21 people solved
Sep 9, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

High Availability and Failover for a Primary-Replica Database

This question evaluates a candidate's understanding of database high-availability design, including replication semantics, failure detection, and fail...

System DesignFault Tolerance & FailoverConsensus & Replication
16
0
121 people solved
Jun 19, 2026
Palantir logo
Palantir
Medium
Software Engineer

Handle value conflicts and disagreeing with leadership

Behavioral / Values prompts Answer the following with specific examples (use the STAR method): 1. Have you ever made a decision that was “politically ...

Behavioral & LeadershipEthics & ResponsibilityConflict & Collaboration
30
0
416 people solved
Jan 6, 2026
Grammarly logo
Grammarly
Medium
Software Engineer

Implement a Transactional Key-Value Store

Design an in-memory key-value store that supports transactions. Required operations: - set(key, value): assign or overwrite the value for a key. - get...

Coding & AlgorithmsData Structure DesignStacks & Queues
14
0
148 people solved
Apr 6, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Implement IP Address Arithmetic

This question evaluates proficiency in IP addressing, parsing and validation, binary/address-space arithmetic, CIDR subnet calculation, and formatting...

Coding & Algorithms
16
3
120 people solved
May 12, 2026
Rippling logo
Rippling
Easy
Software EngineerSenior+

Walk Through Your Current Role, a Recent Work Challenge, and How You Use AI Tools

You are on a 30-minute introductory call with a recruiter for a senior software engineer role. The recruiter asks three questions about your own work:...

Behavioral & LeadershipMotivation & FitOwnership & Execution
1
0
11 people solved
Jul 4, 2026
Squarepoint logo
Squarepoint
Medium
Quantitative Trader Locked

Solve Probability and Statistics Questions

This question evaluates proficiency in statistical modeling (ordinary least squares linear regression), probability theory (law of large numbers and c...

Machine LearningRegression & Statistical ModelingProbability
9
0
114 people solved
May 3, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Time-Based Key-Value Store

This question evaluates the ability to design a data structure that supports versioned storage and efficient point-in-time lookups. It tests binary se...

Coding & Algorithms
7
0
55 people solved
Jun 23, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Design a Reliable Payment Processing System

Design a Reliable Payment Processing System Design a payment-processing service for merchants. A client creates a payment, the service submits it to a...

System Design
5
0
53 people solved
May 2, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Explain C++ Inline Semantics and Trade-Offs

Explain that C++ inline semantics permit suitable definitions across translation units but do not require call-site expansion. Evaluate compiler optim...

Software Engineering Fundamentals
6
0
62 people solved
May 15, 2026
Databricks logo
Databricks
Hard
Software Engineer Locked

Design Snapshot Set Iteration and Clarify Durable Writes

Design a mutable set whose iterators preserve an exact, deterministic creation-time snapshot, then frame the missing requirements for a separate durab...

Software Engineering FundamentalsData Structure DesignSystem Design Fundamentals
31
0
317 people solved
Jul 26, 2026
Grammarly logo
Grammarly
Easy
Software Engineer Locked

Recover a Rooted Tree from Depth-Annotated Preorder

Reconstruct an ordered rooted tree from preorder text in which hyphen count encodes depth and values may have multiple digits. Return a canonical nest...

Coding & Algorithms
12
0
83 people solved
Jul 6, 2026
Uber logo
Uber
Medium
Machine Learning Engineer

Implement CLIP Contrastive Loss

Given a minibatch of paired image and text embeddings, implement the symmetric contrastive loss used in CLIP-style image-text representation learning....

Machine LearningNeural Networks & TrainingComputer Vision
24
0
213 people solved
Apr 3, 2026
Applied Intuition logo
Applied Intuition
Medium
Software Engineer Locked

Parse a protobuf-like schema and answer queries

This question evaluates proficiency in parsing grammar-like schemas, scope-based name resolution for nested types, symbol-table construction, and desi...

Coding & Algorithms
8
0
70 people solved
Jan 8, 2026
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