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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
Meta logo
Meta
Medium
Software EngineerSenior+

Prepare Leadership And Collaboration Stories

Prepare concise behavioral interview answers for the following prompts. Use specific examples from your own experience, quantify impact where possible...

Behavioral & Leadership
3
0
48 people solved
Apr 9, 2026
Amazon logo
Amazon
Medium
Software EngineerIntern

Control Robot Charging with Repeated Polling and Exclusive Station Assignments

A fleet contains multiple robots and a limited number of charging stations. A robot whose battery level is below 50% should be sent to an available ch...

Software Engineering FundamentalsSimulation & State MachinesAPI Integration & HTTP Clients
2
0
27 people solved
Jan 10, 2026
Slack logo
Slack
Medium
Product Manager

Slack product-led growth: new self-serve acquisition, activation and expansion loops

You are a product manager for Slack. How would you create more pathways for product-led growth, meaning ways for the product itself, rather than a sal...

Product Design & StrategyGrowth & MonetizationMetrics & KPIs
1
0
11 people solved
May 31, 2026
IBM logo
IBM
Easy
Data Scientist

Design a lead-scoring model

Question You are interviewing for a Data Scientist role on a marketing/growth team. Sales has limited outreach capacity, so the business wants a lead-...

Machine LearningML System DesignFeature Engineering
39
0
264 people solved
Jan 17, 2026
Coinbase logo
Coinbase
Medium
Software Engineer Locked

Design query pagination for large datasets

This question evaluates a candidate's understanding of pagination strategies, cursor/keyset design, SQL query formulation, consistency guarantees unde...

System DesignAPI DesignIndexing & Query Performance
32
0
260 people solved
Feb 11, 2026
Ixana logo
Ixana
Hard
Software Engineer

Schedule batched register operations optimally

Problem You are given a text file that describes batches of register operations (reads and writes) on integer-indexed registers. Your task is to sched...

Coding & AlgorithmsIntervals & SchedulingParsing & Interpreters
28
0
213 people solved
Nov 13, 2025
Scale AI logo
Scale AI
Medium
Software Engineer

Quantify impact of your projects using STAR

Interview-style behavioral prompt: "Pick one or two of your impactful projects and walk me through them in detail. Focus on what you did and how you m...

Behavioral & LeadershipProject Deep Dive
30
0
267 people solved
Dec 8, 2025
Capital One logo
Capital One
Medium
Product Manager

Diagnosing an Instagram daily active user decline while monthly actives stay flat

You are a product manager at Meta. Instagram's daily active users (DAU) are falling, while monthly active users (MAU) have stayed flat. How would you ...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
1
0
15 people solved
Jan 26, 2026
Medium
Software Engineer

Implement an LRU Cache with Constant-Time Operations

Implement an LRU cache with a positive capacity. get(key) returns the stored value and makes that entry most recently used, or returns -1 if absent. p...

Coding & AlgorithmsData Structure DesignLinked Lists
1
0
8 people solved
May 11, 2026
Amazon logo
AmazonGoogle
Medium
Software Engineer

Total Digit Waviness Across a Range

Problem Given integers num1 and num2, return the sum of the waviness of every integer in the inclusive range [num1,num2]. Use each number's ordinary d...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
0
0
7 people solved
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Minimum total cost to convert one string into another using weighted character rules

You are given two strings, source and target, of the same length n, both made of lowercase English letters. You are also given a set of character conv...

Coding & AlgorithmsGraphs
1
0
15 people solved
Apr 3, 2026
OpenAI logo
OpenAI
Medium
Product Manager

Product Strategy for OpenAI's Fine-Tuning and Model Customization API

Working only from OpenAI's public documentation, put together a product strategy for the fine-tuning capabilities of its API. `hint Start from the alt...

Product Design & StrategyProduct StrategyAI Product Management
0
0
10 people solved
May 2, 2026
Uber logo
Uber
Medium
Backend Engineer Locked

Replace Dashes With Nearest Letters

This question evaluates a candidate's competence in grid traversal, distance computation using Manhattan metrics, and handling tie-breaking rules incl...

Coding & Algorithms
5
0
60 people solved
May 25, 2026
Goldman Sachs logo
Goldman Sachs
Medium
Product Manager

Explain Your Motivation for Changing Jobs in a Goldman Sachs Product Manager Interview

You are interviewing for a product manager role at Goldman Sachs. The interviewer asks why you want to leave the company you work for now. Give the an...

Behavioral & LeadershipMotivation & Fit
1
0
12 people solved
Jan 25, 2026
Waymo logo
Waymo
Easy
Data Scientist Locked

Implement nested template string substitution

This question evaluates understanding of string processing, dependency resolution, recursive expansion, cycle detection, and efficiency techniques suc...

Coding & AlgorithmsParsing & InterpretersGraphs
27
1
199 people solved
Jan 17, 2026
Google logo
Google
Medium
Data Scientist

Implement piecewise linear interpolation for time-to-empty

Time-to-Empty from a Discharge Curve (Piecewise Linear Interpolation) Implement a function time_to_empty(checkpoints, current_soc) that returns the nu...

Coding & Algorithms
9
0
90 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Software Engineer

Produce a valid deployment order

You are given N services and a list of dependency pairs (A, B) meaning service B must be deployed before service A. Compute any valid deployment order...

Coding & AlgorithmsGraphs
22
0
154 people solved
Aug 12, 2025
Meta logo
Meta
Medium
Product Manager

Choosing a North Star and Guardrail Metrics for Meta's Gaming Expansion

Meta is expanding its investment in gaming. As the product manager accountable for this effort, which KPIs would you track to judge whether the expans...

Analytics & ExperimentationMetrics & KPIs
0
0
12 people solved
Aug 19, 2026
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Design weapon-selling ad detection from posts

This question evaluates a candidate's ability to design a production-scale multimodal ML system for detecting weapon-selling ads, testing competencies...

ML System DesignModel EvaluationSupervised Learning
17
0
136 people solved
Dec 15, 2025
HackerRank logo
HackerRank
Medium
Machine Learning Engineer

Build A Purchase-Intent Prediction Notebook

Build a machine learning notebook that predicts whether a user session will lead to a purchase. The training and test CSV files contain page counts, t...

Machine Learning
5
0
45 people solved
Apr 23, 2026
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