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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
Meta logo
Meta
Medium
Machine Learning EngineerIntern

Implement scaled dot-product attention

Task In this interview you are asked to hand-write the forward pass of attention from the mathematical formula (no need to run code). Implement single...

Coding & Algorithms
5
0
66 people solved
Sep 2, 2025
ByteDance logo
ByteDance
Medium
Software Engineer

Count Similar Photo Groups

You are given n photos labeled 0 to n - 1 and an n x n binary matrix isSimilar. - isSimilar[i][j] = 1 means photo i and photo j are directly similar. ...

Coding & Algorithms
3
0
30 people solved
Feb 15, 2026
Amazon logo
Amazon
Medium
Software Engineer

Behavioral: Resolving a Workplace Conflict and Using Generative AI in Your Work

In the behavioral part of a software engineering onsite, you are asked two questions: one about a conflict you worked through, and one about how you h...

Behavioral & LeadershipConflict & CollaborationAI-Assisted Development
0
0
6 people solved
Mar 11, 2026
Amazon logo
Amazon
Medium
Product Manager

Late but Critical Colleague

Behavioral Scenario: Late but Critical Colleague You run a recurring bi-weekly cross-functional planning or metrics review meeting. A teammate who own...

Behavioral & Leadership
9
1
90 people solved
Jul 4, 2025
Google logo
Google
Medium
Software Engineer Locked

Process Sharded Login Logs

This question evaluates understanding of distributed systems, stream processing, and reliable data engineering concepts related to ingestion, ordering...

Software Engineering FundamentalsData Ingestion & CDCBatch & Stream Processing
40
0
448 people solved
Apr 12, 2026
Robinhood logo
Robinhood
Medium
Software EngineerSenior+ Locked

Design a constrained cache and secure string validator

This question evaluates proficiency in data structures and algorithms (constrained cache design), concurrent programming, complexity analysis, and sec...

Coding & AlgorithmsData Structure DesignApplication Security
6
0
122 people solved
Jan 22, 2026
DoorDash logo
DoorDash
Hard
Analytics Engineer

Find Maximum Window Sum

Given an integer array nums and an integer k, write code to find the maximum sum of any contiguous subarray of length exactly k. Assume 1 <= k <= len(...

Coding & AlgorithmsTwo Pointers & Sliding Window
7
0
86 people solved
Oct 12, 2025
Amazon logo
Amazon
Medium
Applied Scientist Locked

Determine if all courses can be completed

This question evaluates graph-theoretic dependency modeling and cycle-detection competency, measuring the ability to represent course prerequisites as...

Coding & Algorithms
4
0
30 people solved
May 30, 2026
Amazon logo
Amazon
Medium
Data Scientist

Implement Reservoir Sampling; Analyze Time and Space Complexity

Scenario Process an unbounded stream of user IDs and maintain a uniform random sample of k users in memory. Question Implement reservoir sampling for ...

Coding & Algorithms
25
0
82 people solved
Aug 4, 2025
Capital One logo
Capital One
Hard
Machine Learning Engineer Locked

Support updates and count target-sum pairs

This question evaluates data structures and algorithmic skills for dynamic pair counting, focusing on frequency management, efficient update handling,...

Coding & AlgorithmsArrays & StringsData Structure Design
9
0
87 people solved
Jan 6, 2026
Rippling logo
Rippling
Easy
Software Engineer AI Locked

How would you scale rule evaluation?

Design a scalable expense-policy rule engine for one million rules and thousand-record batches. Covers structured rules, predicate indexes, bitset eva...

System DesignIndexing & Query PerformanceParsing & Interpreters
7
0
146 people solved
Apr 17, 2025
Capital One logo
Capital One
Medium
Data Scientist

Compute optimal stopping in a die-rolling game

Optimal stopping with a fair die (3-roll horizon) You observe outcomes of fair six-sided die rolls (faces 1–6) and may stop after any roll to take the...

Statistics & MathPuzzles & BrainteasersProbability
10
0
190 people solved
Oct 13, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Explain Why You Want to Change Roles

Explain why you are considering a role change and what durable qualities you seek next, without criticizing people or sharing confidential information...

Behavioral & Leadership
1
0
18 people solved
May 22, 2026
Google logo
Google
Medium
Software Engineer

Assess behavioral competencies across scenarios

Behavioral Competency Prompts (Software Engineer, HR Screen) Provide specific work situations that demonstrate each competency below. Use concise STAR...

Behavioral & LeadershipEthics & ResponsibilityAmbiguity & Decision Making
8
0
122 people solved
Sep 6, 2025
LinkedIn logo
LinkedIn
Hard
Data Scientist

Analyze homepage drop and feed ranking

You are interviewing for a product data science role at LinkedIn. Answer the following two product-sense questions. 1. Diagnose a drop in Home Page ->...

Analytics & Experimentation
5
0
74 people solved
Jan 17, 2026
Meta logo
Meta
Hard
Data Engineer

Define and validate product metrics

Define and validate product metrics End-to-End Analytics Design for a New Product Feature Context: You are the data engineer partnering with product, ...

Analytics & Experimentation
5
0
56 people solved
Jul 15, 2025
NVIDIA logo
NVIDIA
Hard
Software Engineer

Build a Jenkins CI for graphics tests

Build a Jenkins CI for graphics tests Take‑Home: Design a Jenkins Pipeline for GPU Graphics Test Matrix Context You need to design a Jenkins-based CI/...

System DesignCI/CD & DeploymentTesting & Quality
10
0
106 people solved
Aug 9, 2025
Instacart logo
Instacart
Medium
Software Engineer

Implement prefix and suffix file search

Implement data structures and APIs to store file names and support efficient queries that match both a given prefix and suffix. Provide methods add(na...

Coding & AlgorithmsString AlgorithmsData Structure Design
7
0
131 people solved
Sep 6, 2025
Mintlify logo
Mintlify
Medium
Software EngineerSenior+

Recreate a Card Interface from a Screenshot

Recreate a Card Interface from a Screenshot Build a frontend component that matches a supplied screenshot of a card containing badges or chips. Explai...

Software Engineering Fundamentals
1
0
11 people solved
Apr 30, 2026
Affirm logo
Affirm
Medium
Data Scientist

Navigate Cultural Differences in Cross-Functional Teams

Navigate Cultural Differences in Cross-Functional Teams Behavioral: Tell Me About Yourself + Handling Cultural Differences Context - Role: Data Scient...

Behavioral & Leadership
8
0
74 people solved
Aug 4, 2025
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