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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
Anthropic logo
Anthropic
Medium
Software EngineerSenior+

Give a Credible Why-This-Organization Answer

Give a Credible Why-This-Organization Answer Answer a recruiter who asks why you want to join their mission-driven AI organization. Your response shou...

Behavioral & Leadership
8
0
62 people solved
Apr 24, 2026
Coinbase logo
Coinbase
Medium
Product Manager

Building Technical Debt Work Into Roadmap, Quarterly and Sprint Planning

As a product manager, explain how you view technical debt within the overall planning process. Cover what you treat as technical debt, how it gets sur...

Product / Decision MakingRoadmapping & PlanningTechnical Tradeoffs for PMs
1
0
13 people solved
Jan 18, 2026
ByteDance logo
ByteDance
Medium
Site Reliability Engineer

Find Maximum Chain Activations

You are given n devices, where each device is represented as [x, y, r]. Device i is located at coordinates (x, y) and can directly activate device j i...

Coding & Algorithms
2
0
44 people solved
Apr 4, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+

Calculated Risks and Tight Deadlines: Moving Fast With Good Judgment

This entry gathers the loop's leadership-principle prompts about speed: acting on incomplete information, taking calculated risks, and delivering unde...

Behavioral & LeadershipAmbiguity & Decision MakingOwnership & Execution
1
0
13 people solved
Apr 6, 2026
Apple logo
Apple
Medium
Data Scientist

Differentiate P-value and Confidence Interval in Statistics

Differentiate P-value and Confidence Interval in Statistics Statistics Knowledge Check (Onsite Data Scientist) Task Explain core inferential statistic...

Statistics & MathHypothesis Testing
13
0
143 people solved
Aug 4, 2025
Rbcroyalbank logo
Rbcroyalbank
Easy
Data EngineerSenior+

Explain ETL schema changes and ensure integrity

Behavioral / Data Engineering Discussion Prompts You’re interviewing for a Data Engineer role. Answer the following prompts with concrete examples fro...

Behavioral & LeadershipETL & Data PipelinesData Quality & Validation
11
0
120 people solved
Feb 8, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad Locked

Design a Linked Queue with Deletion Follow-Ups

Design a linked queue with constant-time enqueue and dequeue, then compare source-faithful delete-by-value and duplicate-removal semantics before impl...

Software Engineering Fundamentals
9
0
144 people solved
Sep 2, 2026
Character.AI logo
Character.AI
Medium
Software Engineer

Explain strings and copy complexity

Question What is a string? What fields does a struct string contain, and how would you implement it yourself? What is the time complexity of copying a...

Coding & Algorithms
6
0
50 people solved
Jul 29, 2025
XPeng logo
XPeng
Medium
Machine Learning Engineer

Compute optimal matrix multiplication order

Given an array dims[0..n] where matrix i has dimensions dims[i-1] × dims[i] (for i = 1..n), compute the minimum number of scalar multiplications neede...

Coding & Algorithms
8
0
64 people solved
Sep 6, 2025
Waymo logo
Waymo
Medium
Software EngineerSenior+ Locked

Design a Hybrid Evaluation Platform

This question evaluates skills in designing scalable ML evaluation platforms, covering architecture, data modeling, human-in-the-loop workflows, LLM-b...

ML System DesignSystem Design FundamentalsLLM Evaluation
23
0
160 people solved
Feb 6, 2026
Paytm logo
Paytm
Medium
Product Manager

PM Metrics: Linking Leading Signals to Lagging Outcomes and Tracking Both

In a product manager interview, you are asked how you tell leading indicators apart from lagging indicators and how you keep track of both as part of ...

Analytics & ExperimentationMetrics & KPIs
0
0
8 people solved
Aug 29, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Explain a domain project in depth

Behavioral & Leadership Prompt: Deep-Dive Project Walkthrough (STAR) Provide a detailed walkthrough of a complex, high-impact project you led or co-le...

Behavioral & LeadershipProject Deep Dive
11
0
170 people solved
Aug 13, 2025
Databricks logo
Databricks
Easy
Data Scientist Locked

Test if coin is fair from 560 tails

This question evaluates understanding of hypothesis testing for proportions, including formulation of null and alternative hypotheses, computation of ...

Statistics & Math
4
0
57 people solved
Dec 3, 2025
OpenAI logo
OpenAI
Medium
Data Scientist

Write SQL to compute signup and retention lift

You are analyzing an A/B test for a marketing campaign that offers a free 1‑month trial. Assume all timestamps are in UTC. Tables experiment_assignmen...

Data Manipulation (SQL/Python)SQLExperiment Analysis & Readout
25
0
212 people solved
Oct 8, 2025
Uber logo
Uber
Medium
Product Manager

Plan Netflix's First Advertising Offering: Packaging, Ad Experience and Rollout

You are a product manager at Netflix and you own the launch of the company's first-ever advertising offering. How would you approach it? `hint Follow ...

Product Design & StrategyGrowth & MonetizationBusiness Case Analysis
1
0
8 people solved
Jan 19, 2026
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Find the Minimum Parenthesis Deletions and Their Positions

Return the source indices for a minimum set of parenthesis deletions that leaves a valid sequence, choosing the lexicographically smallest index list ...

Coding & Algorithms
5
0
38 people solved
May 26, 2026
LinkedIn logo
LinkedIn
Easy
Data Scientist Locked

How do you sample uniformly from an infinite stream?

This question evaluates understanding of streaming algorithms, randomized sampling and probability, and algorithmic space–time trade-offs involved in ...

Coding & AlgorithmsProbabilityMath & Number Theory
15
0
158 people solved
Feb 1, 2026
Snapchat logo
Snapchat
Medium
Software Engineer Locked

Implement a Timestamped Counter

This question evaluates the ability to design and implement time-indexed counting data structures, reason about strictly increasing timestamps and que...

Coding & Algorithms
4
0
86 people solved
Mar 1, 2026
Walmart Labs logo
Walmart Labs
Medium
Software Engineer

Design a multi-carrier parcel delivery system

Design a system for shipping customer parcels that supports multiple delivery partners/carriers (e.g., UPS, USPS, FedEx). Your system should enable an...

System DesignSystem Design FundamentalsAPI Design
34
0
264 people solved
Mar 1, 2026
Google logo
Google
Medium
Product Manager

Google Company Knowledge: Founding Search Problem, Mission and Product Fit

In a product manager interview at Google, you are asked to describe your understanding of the company: what problem led to Google being founded, and w...

Product Design & StrategyMotivation & FitProduct Strategy
0
0
8 people solved
Jul 19, 2026
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