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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
Squarepoint logo
Squarepoint
Medium
Quantitative Trader Locked

Explain Option Greeks and Futures Pricing

This question evaluates understanding of derivatives and quantitative finance concepts—option Greeks (delta, gamma), PnL approximations, futures prici...

Software Engineering Fundamentals
6
0
59 people solved
May 3, 2026
NVIDIA logo
NVIDIA
Hard
Software Engineer

Design a distributed multi-user counter

Design a Horizontally Scalable Distributed Counter Service Context You are designing a distributed counter service used concurrently by many clients. ...

System DesignDistributed CoordinationConsistency & Availability
11
0
163 people solved
Sep 6, 2025
Waymo logo
Waymo
Medium
Frontend EngineerSenior+ Locked

Build an Interactive Filtered Tree View

Build an accessible interactive tree view that removes matching nodes and their subtrees as filter text changes. Separate pure immutable filtering fro...

Software Engineering Fundamentals
5
0
62 people solved
May 11, 2026
Citadel logo
Citadel
Medium
Data Scientist

Compute P(third Ace | Ace in first two)

Conditional probability with cards drawn without replacement Problem You draw three cards without replacement from a standard 52‑card deck (4 Aces). G...

Statistics & MathProbabilityPuzzles & Brainteasers
20
0
143 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Product Manager

Shared-ride launch scorecard for Uber Pool: primary metric, funnel and guardrails

Uber has launched Uber Pool, an option in the app where a rider accepts sharing the car with other riders going a similar way in exchange for a lower ...

Analytics & ExperimentationMetrics & KPIsLaunch Evaluation
0
0
9 people solved
Apr 9, 2026
Meta logo
Meta
Medium
Machine Learning Engineer

Check diagonal equality in a matrix

Given an m x n integer matrix, determine whether every top-left to bottom-right diagonal contains identical values (all elements along each such diago...

Coding & Algorithms
12
0
121 people solved
Jul 31, 2025
Google logo
Google
Medium
Product Manager

Microsoft Mobile Comeback: Strategy for a New Device in Today's Phone Market

In a product manager interview, you are asked to set the strategy for Microsoft if it decided to come back to the mobile device market with a new devi...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
9 people solved
May 12, 2026
Figma logo
Figma
Hard
Data Scientist

Describe your most and least engaging work

You are interviewing for a Data Scientist role. The hiring manager asks: What kinds of work have been the most engaging for you, and what kinds have b...

Behavioral & LeadershipMotivation & Fit
19
0
189 people solved
Apr 9, 2026
Capital One logo
Capital One
Medium
Data Scientist

How would you design delay and watchlist models?

You may be asked one or both of the following machine-learning case questions: 1. Flight-delay prediction case An airline wants a model that predicts ...

Machine LearningSupervised Learning
23
0
230 people solved
Jan 30, 2026
Meta logo
Meta
Hard
Machine Learning Engineer

Design nearby place recommendations

Real‑Time Nearby Places Recommendation System Context Design a mobile feature that recommends nearby places (e.g., restaurants, shops, attractions) to...

ML System DesignRecommendation SystemsGeo & Delivery Systems
11
1
147 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Product Manager

Setting Ranked Goals and Success Metrics for a Meta-Built Headphones Product

You are a product manager at Meta responsible for Meta Headphones, a pair of Meta-branded headphones. Set the goals for this product: what it should a...

Analytics & ExperimentationMetrics & KPIsProduct Strategy
1
0
16 people solved
Jul 28, 2026
Meta logo
Meta
Hard
Data Scientist

Determine Success Metrics for Circle Feature Optimization

Scenario Meta is evaluating a new social feature called Circle (similar to Facebook Groups), where members join a group and then post and comment with...

Analytics & ExperimentationMetrics & KPIsCausal Inference
18
0
132 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data ScientistSenior+

Describe influencing without authority

Behavioral (STAR) Prompt: Disagreeing With a Senior Engineer's Design Without Authority Context You are interviewing for a Data Scientist role in an o...

Behavioral & LeadershipLeadership & InfluenceConflict & Collaboration
16
0
262 people solved
Oct 13, 2025
Stripe logo
Stripe
Medium
Data Engineer

Compute shipping cost with tiered pricing

You are building a shipping-cost calculator. Each order contains line items, and shipping rules vary by destination country and product. Assume: - Ord...

Coding & Algorithms
17
0
193 people solved
Feb 16, 2025
Read.Ai logo
Read.Ai
Medium
Software Engineer

Implement a per-user API rate limiter

You are building an API gateway that must enforce per-user rate limits. Task Implement a rate limiter with the following API: - RateLimiter(int maxReq...

Coding & AlgorithmsRate Limiting
16
0
132 people solved
Nov 3, 2025
Datadog logo
Datadog
Medium
Software Engineer

Describe handling conciseness feedback

Behavioral: Conciseness Feedback and Adaptation Provide a real example where you received feedback that your answers were not concise. Address the fol...

Behavioral & LeadershipCommunication & Stakeholders
14
0
189 people solved
Sep 6, 2025
Intuit logo
Intuit
Medium
Data Scientist

Explain a non-linear industry switch

Behavioral Interview Prompt — Transition from Semiconductor to SaaS Analytics You are in an HR screen for a Data Scientist role. The interviewer chall...

Behavioral & LeadershipMotivation & FitAmbiguity & Decision Making
13
0
102 people solved
Oct 13, 2025
Fidelity logo
Fidelity
Medium
Software Engineer

Review tech stack and best practices

Review tech stack and best practices Take-home Technical Questionnaire (System Design & Engineering) Context As part of a take-home technical screen f...

System Design
30
0
92 people solved
Aug 4, 2025
Apple logo
Apple
Hard
Software Engineer Locked

Implement a lazy inorder traversal iterator

This question evaluates understanding of binary tree traversal and iterator design, specifically the implementation of a lazy inorder iterator under t...

Coding & AlgorithmsTreesStacks & Queues
10
0
105 people solved
Feb 11, 2026
Hebbia logo
Hebbia
Hard
Software Engineer Locked

Detect a Winner on a 3x3 Tic-Tac-Toe Board

A coding interview problem about detecting the winner on a 3x3 Tic-Tac-Toe board. It tests careful handling of rows, columns, diagonals, empty cells, ...

Coding & Algorithms
2
0
29 people solved
Jun 6, 2026
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