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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
569
Updated
10.02.2026
11.9k Questions 569 Companies10.02.2026
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
Amazon logo
Amazon
Medium
Data Scientist

Explore Subscription Patterns and Status Transitions with SQL/Pandas

subscriptions +-----------------+---------+-------------+ | subscription_id | status | status_date | +-----------------+---------+-------------+ | 10...

Data Manipulation (SQL/Python)
69
0
19 people solved
Jul 12, 2025
Disney logo
Disney
Medium
Product Manager

Reduce Disney+ Account Sharing

You are a Product Manager for Disney+. Design a product and policy strategy to reduce unauthorized account sharing without significantly harming the e...

Product Design & StrategyProduct StrategyGrowth & Monetization
9
0
69 people solved
Mar 21, 2025
Meta logo
Meta
Medium
Software Engineer

Design keyword search for social posts

Design a Facebook-like post search feature: - Input: one or more keywords. - Output: all (or top-K) posts that contain the keyword(s). - Assume posts ...

System Design
5
0
36 people solved
Oct 2, 2025
Amazon logo
Amazon
Medium
Applied Scientist

Explain core ML fundamentals

Explain core ML fundamentals ML Fundamentals — Onsite Interview Task Context: Answer the following fundamentals as if in an onsite ML Engineer intervi...

Machine LearningML FundamentalsModel Evaluation
11
0
97 people solved
Jul 17, 2025
Meta logo
Meta
Medium
Data Scientist

Write SQL for visibility, calls, and cohort activity

You have the following schema and toy data. Assume "today" = 2025-09-01. users(user_id INT, signup_date DATE) Sample: user_id | signup_date -------...

Data Manipulation (SQL/Python)
2
0
15 people solved
Oct 13, 2025
Shopify logo
Shopify
Medium
Data Scientist

Assess and push back on ideology-heavy interviews

Scenario You are interviewing for a Data Scientist role. Twenty‑four hours before your HR call, the recruiter emails five links (CEO philosophy + inte...

Behavioral & Leadership
8
0
75 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer

Design a chat messaging system

Design a chat system similar to WhatsApp/Messenger. Requirements: - 1:1 and group chats. - Send/receive messages in real time when online; store-and-f...

System Design
6
0
48 people solved
Feb 25, 2026
Generalmotors logo
Generalmotors
Hard
Machine Learning Engineer Locked

Count Islands in a Grid

This question evaluates skills in graph traversal and grid connectivity detection, testing competency in reasoning about adjacency, state management, ...

Coding & Algorithms
2
0
35 people solved
Mar 14, 2026
Thumbtack logo
Thumbtack
Medium
Data Scientist Locked

Forecast response-rate trends with backtesting

This question evaluates proficiency in time-series forecasting and model validation, including feature engineering, model selection, rolling-origin ba...

Machine Learning
5
0
69 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Analyze spend cohort and source shifts

You work on an ads platform. Assume all timestamps are in UTC. Interpret last year as calendar year 2023 and this year as calendar year 2024. Tables: ...

Data Manipulation (SQL/Python)SQL
12
2
84 people solved
Feb 23, 2026
Uber logo
Uber
Medium
Software Engineer Locked

Design a meeting scheduler and shopping cart

This question evaluates system design skills across distributed systems, API design, data modeling, indexing, caching, concurrency control, consistenc...

System DesignSystem Design FundamentalsStorage & Sharding
38
0
550 people solved
Mar 1, 2026
Meta logo
Meta
Hard
Software Engineer

Compute tree right view and target-sum subarrays

You are given two separate programming tasks. --- Task 1: Right-side view of a binary tree You are given the root of a binary tree. Imagine standing o...

Coding & Algorithms
5
0
41 people solved
Mar 23, 2025
Meta logo
Meta
Easy
Data Scientist

Quantify base-rate dilution in CTR

Weighted-Average CTR and Volume Requirements You are assessing the impact of introducing a new high-CTR event notification into an existing stream of ...

Statistics & Math
3
0
36 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer

Describe conflict resolution, prioritization, and collaboration

Describe conflict resolution, prioritization, and collaboration Behavioral Prompt: Conflict Resolution and Leadership (Software Engineer, Onsite) Inst...

Behavioral & Leadership
4
0
64 people solved
Jul 15, 2025
Fidelity logo
Fidelity
Medium
Software Engineer

Describe Angular features

Describe Angular features What are the key features of Angular? Discuss modules, components, templates, dependency injection, change detection, RxJS o...

Coding & Algorithms
6
0
52 people solved
Jul 31, 2025
eBay logo
eBay
Medium
Product ManagerSenior+

Why eBay and your weakness?

In an eBay Senior Product Manager interview, prepare answers to behavioral prompts that test marketplace motivation, self-awareness, and cross-functio...

Behavioral & LeadershipMotivation & Fit
15
0
98 people solved
Aug 24, 2024
Uber logo
Uber
Medium
Data Scientist

Write SQL for active counts and YTD top driver

Given the following schema and sample data, write SQL to: (a) return the total count of active riders and active drivers on the platform; (b) return t...

Data Manipulation (SQL/Python)
2
0
18 people solved
Oct 13, 2025
Easy
Data ScientistIntern Locked

Compute multi-step Markov probabilities and estimate transitions

This question evaluates understanding of discrete-time Markov chains, computation of multi-step transition probabilities from a one-step transition ma...

Statistics & Math
3
0
35 people solved
Sep 28, 2025
Roblox logo
Roblox
Medium
Data Scientist

Clean and aggregate factory event data in Pandas

You are given three Pandas DataFrames for a factory: (1) events[event_id, machine_id, ts_utc (datetime64[ns, UTC]), event_type in {'start','stop','fau...

Data Manipulation (SQL/Python)
3
0
33 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Design offline segments for Meta Portal retail

Meta Portal is a plug‑in home video‑calling device sold via offline retail. Target segments are not finalized. You have historical, anonymized Faceboo...

Analytics & Experimentation
6
0
44 people solved
Oct 13, 2025
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