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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
Nubank logo
Nubank
Medium
Software Engineer Locked

Design an Online Coding Competition Platform

Design a secure coding competition platform with sandboxed execution, reproducible scoring, a top-100 leaderboard, and exact personal rank lookup.

System Design
6
0
79 people solved
Aug 18, 2026
Google logo
Google
Medium
Software Engineer

A Leader or Manager Who Shaped You and How You Applied the Lesson Later

In a behavioral interview for a software engineer role at Google, you are asked: tell me about a past leader or manager who had a strong positive or l...

Behavioral & LeadershipLeadership & Influence
1
0
36 people solved
Oct 2, 2026
Qualified Health logo
Qualified Health
Hard
Software Engineer

Validate Editable DAGs and Bound Runtime Repetition

A workflow platform lets users create and modify dependency graphs. It must reject cyclic DAG definitions, and it also supports dynamic conditional br...

System DesignGraphsJob Scheduling & Workflows
2
0
18 people solved
Sep 30, 2026
Google logo
GoogleAmazonRedfin

Also asked at Redfin, TCS, Bloomberg, Meta, Microsoft, Salesforce, Intuit, NVIDIA

Easy
Software Engineer

Choose Three Values with the Largest Product

Problem Select three distinct array positions in nums and return the largest product of their values. Values may be negative, positive or zero. `cpp c...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
1
0
14 people solved
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Design a Scalable Metrics Monitoring System

Design a scalable monitoring platform for metric ingestion, time-series storage, dashboards, ad hoc queries, and alert evaluation. Explore series iden...

System DesignObservabilitySystem Design Fundamentals
16
0
258 people solved
Jul 23, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Define Project Success, Handle Direction Changes, and Apply Feedback

Practice examples of defining success, adapting a project midway, and turning specific feedback into observable improvements.

Behavioral & LeadershipOwnership & ExecutionAmbiguity & Decision Making
5
0
41 people solved
Sep 17, 2026
Cohere logo
Cohere
Medium
Product Manager

Deep Dive on a Product You Shipped: Role, Key Decisions and Outcomes

The interviewer asks you to pick a product you have built and walk them through it. Answer as you would in a product manager interview. `hint Choose f...

Behavioral & LeadershipProject Deep Dive
1
0
10 people solved
Oct 2, 2026
Okta logo
Okta
Medium
Software Engineer

Behavioral: How You Use AI, Lead Engineers, and Work with Another Team or PM

This behavioral segment takes about the first 25 minutes of a one-hour technical phone screen for a software engineering role; the rest of the hour is...

Behavioral & LeadershipAI-Assisted DevelopmentConflict & Collaboration
1
0
22 people solved
Sep 15, 2026
Nutanix logo
Nutanix
Medium
Software Engineer

Halve the Total with the Fewest Exact Reductions

Problem The entries of nums begin as positive integers. In one operation, replace any current entry by exactly half of its value, retaining fractional...

Coding & AlgorithmsHeaps & Priority QueuesGreedy
2
0
19 people solved
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Design Insert/Delete/GetRandom with Weighted Sampling

This Hudson River Trading software engineering question combines insert, delete, random access, and weighted sampling in one data structure design. It...

Software Engineering FundamentalsData Structure DesignMath & Number Theory
25
2
209 people solved
Jul 2, 2026
Google logo
Google
Medium
Software Engineer

Choose Your Workplace Style

You are taking a forced-choice workplace-style assessment for a Software Engineer role. Each item contains three positive statements. For each item: 1...

Behavioral & Leadership
46
1
378 people solved
Apr 12, 2026
Google logo
Google
Medium
Software Engineer Locked

Handle Policy, Confidentiality, Integrity, and Conflict-of-Interest Scenarios

Reason through workplace scenarios involving prohibited gifts, vendor conflicts, confidential information, inaccurate credit, deadline pressure, and u...

Behavioral & Leadership
8
0
63 people solved
Aug 16, 2026
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Explain a Project's Most Complex Technical Component in Depth

Explain a project's most complex technical component through its invariants, design alternatives, implementation details, and failure-case validation.

Software Engineering FundamentalsProject Deep Dive
4
0
43 people solved
Sep 5, 2026
Google logo
Google
Medium
Software Engineer Locked

Evolve Duplicate Detection for Sliding Windows and Read-Heavy Queries

Trace duplicate detection from a basic set through a bounded sliding window to a read-heavy precomputed summary. The solution proves the window invari...

Software Engineering Fundamentals
24
0
362 people solved
Sep 3, 2026
Meta logo
Meta
Medium
Product Manager

North-star and guardrail metrics for Vibes, Meta's AI-generated short video feed

How would you measure the success of Vibes? Assume Vibes is Meta's feed of short AI-generated videos in the Meta AI app, where people can watch clips,...

Analytics & ExperimentationMetrics & KPIsAI Product Management
1
0
17 people solved
Sep 20, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Design a Devbox Service for On-Demand Remote Development Environments

Design a devbox service: a system that lets engineers get a remote development environment (a "devbox") on demand, work in it from their own laptop, a...

System DesignSystem Design FundamentalsContainers & Orchestration
12
0
112 people solved
Sep 8, 2026
Harvey logo
Harvey
Medium
Software Engineer

Ownership, Tough Feedback, and an Important Problem Outside Your Focus Area

A hiring manager screen consisted of three behavioral questions. Answer each with a specific example from your own experience. Clarifying Questions - ...

Behavioral & LeadershipOwnership & ExecutionConflict & Collaboration
2
0
34 people solved
Aug 23, 2026
Google logo
GooglePalo Alto NetworksBloomberg

Also asked at Bloomberg, Citadel, Confluent, Microsoft, Squarepoint

Hard
Software Engineer

Seat Every Couple Together with Minimum Swaps

Problem The 2n entries of row are distinct person IDs. Couples are (0,1), (2,3), and so forth. Seats are grouped as consecutive pairs (0,1), (2,3), et...

Coding & AlgorithmsGraphsGreedy
1
0
18 people solved
Mixpanel logo
Mixpanel
Medium
Data Scientist

Count Users Active After Signup

Count Users with an Event On or After Signup You have these tables: | Table | Column | Meaning | |---|---|---| | users | user_id | User identifier. | ...

Data Manipulation (SQL/Python)SQL
5
1
39 people solved
Sep 14, 2026
Meta logo
Meta
Medium
Software Engineer

Impact and Conflict Stories for a Level-Calibrating Behavioral Interview

This behavioral interview weighs heavily in level calibration: a weak performance can lead to a candidate being leveled one step below the level they ...

Behavioral & LeadershipProject Deep DiveConflict & Collaboration
4
0
37 people solved
Sep 14, 2026
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