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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
TikTok logo
TikTok
Medium
Software Engineer

Design LRU cache with O(1) operations

Design and implement an in-memory cache that evicts the least recently used entry when capacity is reached. Support get(key) and put(key, value) in O(...

Coding & Algorithms
5
0
47 people solved
Sep 6, 2025
Axon logo
Axon
Medium
Software Engineer

How did you handle an ethical issue?

Describe a time when you encountered an ethical issue at work. What was the situation, why was it ethically sensitive, what options did you consider, ...

Behavioral & LeadershipEthics & Responsibility
27
0
206 people solved
Mar 16, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Describe your most impactful recent project

Question Walk me through your most impactful (or proudest) recent project. Be ready to go deep on the technical details and the decisions you made. 1....

Behavioral & Leadership
7
0
124 people solved
Sep 6, 2025
Twitch logo
Twitch
Medium
Data Scientist

Solve advanced SQL for streaming analytics

You are given minute-level streaming telemetry. Each row in minute_streamed represents one minute during which a streamer was live; each row in minute...

Data Manipulation (SQL/Python)
1
0
28 people solved
Oct 13, 2025
ByteDance logo
ByteDance
Medium
Software EngineerIntern

Sort Every Concentric Matrix Border Clockwise

Problem For each concentric border of a rectangular integer matrix, sort that border's values in ascending order and write them back clockwise startin...

Coding & Algorithms
5
0
56 people solved
Apr 20, 2026
Capital One logo
Capital One
Medium
Product Manager

Choose an Everyday Object Around You and Reimagine Its Design

Look around the room you are in and pick one object. How would you redesign it? `hint Pick for the person, not the object Choose something whose users...

Product Design & StrategyProduct Sense
0
0
9 people solved
May 9, 2025
Google logo
Google
Medium
Product Manager

Marketing Plan for a Google Bus: Audience, Positioning, Channels and Metrics

You are a product manager at Google, and your job is to plan how a Google bus gets marketed. Walk through the strategy you would build. `hint Decide w...

Product Design & StrategyGrowth & Monetization
0
0
5 people solved
May 27, 2026
Meta logo
Meta
Medium
Data Scientist

Design a clustered notification experiment with guardrails

You work on a mobile travel app (think TripAdvisor-like) that will test a new push-notification policy recommending nearby attractions. Design a rigor...

Analytics & Experimentation
4
0
59 people solved
Oct 13, 2025
Squarepoint logo
Squarepoint
Hard
Data Scientist Locked

Analyze expectations, correlations, and investment strategies

This multipart Machine Learning question evaluates probabilistic expectation and stopping-time reasoning, combinatorial expectations in random permuta...

Machine LearningProbabilityTrading Systems
14
0
121 people solved
Nov 7, 2025
Snapchat logo
Snapchat
Medium
Software Engineer

Count islands with eight-direction adjacency

You are given an m×n grid of characters '1' (land) and '0' (water). Count the number of islands, where cells are connected if they touch in any of the...

Coding & Algorithms
5
0
95 people solved
Aug 13, 2025
Meta logo
Meta
Medium
Data Engineer

Write SQL for library analytics

Given a library database, write SQL to answer the following: 1) Count the number of books that are currently not returned (i.e., still checked out) an...

Data Manipulation (SQL/Python)
9
0
83 people solved
Jul 16, 2025
Rippling logo
Rippling
Hard
Software Engineer Locked

Explain Your Reason for Changing Roles and Your Interest in the Team

Explain job-change motivation and role interest with specific goals, evidence-backed fit, professional framing, and honest open questions.

Behavioral & LeadershipMotivation & Fit
2
0
41 people solved
Sep 13, 2026
Uber logo
Uber
Medium
Software Engineer Locked

Implement Minesweeper and Word Search

This multi-part prompt evaluates grid-based algorithmic skills, including randomized board construction with neighbor counting, straight-line pattern ...

Coding & Algorithms
7
0
56 people solved
May 7, 2026
Amazon logo
Amazon
Medium
Software Engineer

Optimize with a cache/hash map

Question This is a follow-up to your existing implementation (for example, a script that repeatedly resolves file paths or parses license strings into...

Coding & AlgorithmsCachingConcurrency
8
0
153 people solved
Sep 6, 2025
Citadel logo
Citadel
Hard
Software Engineer

Discuss queues, NoSQL, and concurrency

System Design Concepts: Messaging, Storage Choices, and Concurrency Context: You are designing distributed services that communicate via events and mu...

System DesignMessaging & Event-DrivenStorage & Sharding
27
0
217 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Software Engineer

Design a Scalable Post, Feed, and Search Service

Design a Scalable Post, Feed, and Search Service Design a social-post service with three core capabilities: a user can publish a text post, retrieve a...

System Design
1
0
20 people solved
Mar 2, 2026
Amazon logo
Amazon
Medium
Data Scientist

Identify Key Metrics for Monitoring Shipment Defects

shipment +-------------+----------+------------+---------+---------+ | shipment_id | order_id | ship_date | carrier | status | +-------------+------...

Data Manipulation (SQL/Python)
3
0
50 people solved
Aug 4, 2025
Uber logo
Uber
Hard
Software Engineer Locked

Schedule Non-Overlapping Meetings Efficiently

This question evaluates understanding of interval scheduling and overlap detection, proficiency in selecting efficient data structures for dynamic ord...

Coding & AlgorithmsIntervals & SchedulingData Structure Design
11
0
84 people solved
May 2, 2026
Harvey logo
Harvey
Medium
Product Manager

PM Behavioral: Walk Through a Launch You Led, From Problem to Proven Impact

In a product manager interview you are asked to describe one product or feature launch you drove that turned out to be a success. Pick the launch and ...

Behavioral & LeadershipProject Deep DiveLaunch Evaluation
1
0
12 people solved
Jul 11, 2025
PayPal logo
PayPal
Medium
Data Scientist

Implement sliding-window device anomaly

Streaming detection algorithm: Implement a function process_logins(stream) that consumes a time-ordered stream of login events (user_id, ts, device_id...

Coding & Algorithms
7
0
85 people solved
Oct 13, 2025
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