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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
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
Microsoft logo
Microsoft
Easy
Data Scientist Locked

Traverse org chart level by level

This question evaluates understanding of hierarchical data modeling and tree traversal, specifically breadth-first (level-order) traversal and reconst...

Coding & Algorithms
13
0
97 people solved
Feb 9, 2026
Amazon logo
Amazon
Medium
Software EngineerIntern

Manipulate time-series with Pandas groupby

Given a DataFrame events(user_id, event_type, ts_utc, revenue): 1) Parse ts_utc as timezone-aware, convert to America/Los_Angeles, and handle DST tran...

Data Manipulation (SQL/Python)
3
0
33 people solved
Aug 10, 2025
Gusto logo
Gusto
Easy
Data Scientist

Compute p-values for 2 variants vs control

A/B/n test: compute p-values and make a ship decision You ran an online A/B/n experiment with 1 control and 2 treatment variants (A/B/C). You are give...

Analytics & ExperimentationHypothesis TestingExperiment Analysis & Readout
11
0
140 people solved
Nov 2, 2025
Intuit logo
Intuit
Medium
Data Scientist

Compute monthly new subscribers and YoY deltas

Write a single SQL query that returns monthly counts of new subscribers starting at 2019-06, plus year-over-year (same-month prior year) comparisons. ...

Data Manipulation (SQL/Python)
4
0
55 people solved
Oct 13, 2025
Palo Alto Networks logo
Palo Alto Networks
Medium
Software Engineer

Introduce yourself and discuss resume details

Behavioral Interview Prompt: Self-Introduction, Resume Walkthrough, Project Deep Dives, Collaboration, and Questions What to Deliver - Self-introducti...

Behavioral & LeadershipProject Deep Dive
16
0
103 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Software EngineerSenior+ AI

Handle Cross-Team Alignment and Mistakes

The behavioral round focused on three prompts: 1. How do you align requirements across teams? 2. What is the biggest mistake you have made at work? 3....

Behavioral & Leadership
6
0
60 people solved
Apr 8, 2026
Aeonea logo
Aeonea
Medium
Software Engineer

Implement a tennis score tracker

Design and implement a tennis game scoring function. Input: a stream of points won by players 'A' or 'B' (e.g., A, B, B, B, B). After each point, outp...

Coding & Algorithms
5
0
63 people solved
Sep 6, 2025
Google logo
Google
Hard
Software Engineer Locked

Minimize travel time with optional meeting point

This question evaluates a candidate's understanding of graph shortest-path computation and meeting-point optimization, testing skills in handling weig...

Coding & AlgorithmsGraphs
13
1
116 people solved
Jan 6, 2026
Goldman Sachs logo
Goldman Sachs
Medium
Software Engineer

Solve string and hashmap interview tasks

Coding questions (solve both) 1) First non-repeating character Given a string s, return the first character that appears exactly once in the string. -...

Coding & AlgorithmsArrays & Strings
24
0
167 people solved
Dec 9, 2025
Fetch Rewards logo
Fetch Rewards
Medium
Data Scientist

Handle unresponsive stakeholders and align metrics

You have 45 minutes, two interviewers are minimally responsive, and the problem statement is vague. Walk through how you will proactively drive clarit...

Behavioral & Leadership
11
0
93 people solved
Oct 13, 2025
Navan logo
Navan
Medium
Software Engineer

Design time-based key-value store

Design an in-memory key-value store that supports time-based lookups. Operations Implement a class (or module) with the following methods: 1. set(key,...

Coding & AlgorithmsData Structure DesignBinary Search
7
0
146 people solved
Nov 7, 2025
HBO logo
HBO
Medium
Data Scientist

Write SQL for streaming cohort metrics

Given the schema and sample data below, write SQL to answer the three tasks. Use standard SQL (window functions allowed). Assume timestamps are UTC. T...

Data Manipulation (SQL/Python)
3
1
38 people solved
Oct 13, 2025
Expedia logo
Expedia
Medium
Software EngineerSenior+

How do you use AI for coding?

An interviewer asks about your day-to-day use of AI coding assistants. Answer the following: 1) Do you use AI to write code at work? If yes, for what ...

Behavioral & LeadershipAI-Assisted Development
14
0
178 people solved
Oct 29, 2025
Apple logo
Apple
Easy
Software Engineer

Solve three easy algorithm problems

You are given three independent algorithmic tasks. For each one, explain your approach (no need to run code). 1) Merge two sorted lists (integers inst...

Coding & AlgorithmsStacks & Queues
41
0
352 people solved
Nov 11, 2025
Snapchat logo
Snapchat
Medium
Software Engineer

Design Manhattan-distance meeting point finder

Given an m×n grid with cells marked 1 for homes and 0 otherwise, choose a single meeting cell that minimizes the sum of Manhattan distances from all h...

Coding & Algorithms
8
0
72 people solved
Sep 6, 2025
Adobe logo
Adobe
Hard
Software Engineer

Design a multimodal embedding service

System Design: Multimodal Embedding Pipeline for Documents, Images, and Videos You are designing a production service that computes embeddings for use...

ML System DesignEmbeddings & Vector SearchDistributed Transactions & Idempotency
12
1
187 people solved
Sep 6, 2025
Apple logo
Apple
Hard
Data Scientist

Handle conflict, priorities, and harsh clients

Behavioral Case: Disagreement on Model Selection Under Deadline Context: You are a Data Scientist working with engineering, product, and an external c...

Behavioral & LeadershipConflict & CollaborationCommunication & Stakeholders
13
0
140 people solved
Oct 13, 2025
Navan logo
Navan
Medium
Software Engineer

Model booking auxiliary comments with admin updates

Design an object-oriented model (and high-level system design) for a booking system feature that stores auxiliary comments on a reservation. Core requ...

System DesignLow-Level Design (OOP)Authentication & Authorization
9
0
121 people solved
Nov 7, 2025
Amazon logo
Amazon
Medium
Data Scientist

Implement a high-throughput web crawler safely

Design and code (pseudocode acceptable) a multi-threaded web crawler that favors breadth-first discovery while continuously running analysis tasks on ...

Coding & AlgorithmsSystem Design FundamentalsConcurrency
14
0
178 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer AI

Maximize Unique Characters from Words

You are given a list of lowercase English words. Select a subset of the words such that no character appears more than once across all selected words....

Coding & Algorithms
2
0
31 people solved
Mar 17, 2026
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