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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
Pinterest logo
Pinterest
Hard
Software Engineer

Insert Plus or Times Between Ordered Numbers to Reach a Target, Evaluated Left to Right

You are given a list of nonnegative integers and a target. Decide whether you can place either + or * between every pair of adjacent numbers so that t...

Coding & AlgorithmsBacktracking & Recursion
2
0
42 people solved
Sep 2, 2026
Airwallex logo
Airwallex
Medium
Software Engineer

Design a High-Demand Ticketing System

Design a High-Demand Ticketing System Design a ticketing system for high-demand events. Users should discover events, view seat or section availabilit...

System DesignSystem Design FundamentalsDistributed Transactions & Idempotency
15
0
193 people solved
Aug 9, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Why Work on AI Safety

Build a mission-driven AI-safety answer that connects concrete risks, engineering controls, personal contribution, and honest uncertainty.

Behavioral & Leadership
6
0
95 people solved
Aug 28, 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
1
0
16 people solved
Sep 14, 2026
Instacart logo
Instacart
Medium
Software EngineerSenior+

Evaluate a Variable from Chained Assignments with +/- Expressions and Cycle Detection

Given a set of assignments and a target variable, return the value of the target. For example, with the target T1 and the assignments `text T1 = T2 T2...

Software Engineering FundamentalsParsing & InterpretersGraphs
1
0
19 people solved
Sep 10, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer

Explain a Project with a Diagram and Deep Dive into Your Design

Explain a previous engineering project to another engineer using a simple diagram, then take a technical deep dive into its design and the part you pe...

Software Engineering FundamentalsProject Deep Dive
3
0
25 people solved
Sep 17, 2026
Pinterest logo
Pinterest
Hard
Software Engineer

Behavioral Deep Dive: Owned Project Metrics, Fast Decisions, Feedback, and Conflict

You are in the behavioral round of a software engineering onsite. The interviewer works through a standard set of leadership questions one at a time. ...

Behavioral & LeadershipProject Deep Dive
3
0
30 people solved
Sep 2, 2026
Google logo
Google
Medium
Software EngineerSenior+ Locked

Design a Large-Scale Polite Web Crawler

Design a polite distributed web crawler for roughly ten billion pages and periodic recrawls. Cover a host-aware frontier, robots enforcement, deduplic...

System DesignSystem Design FundamentalsJob Scheduling & Workflows
16
0
290 people solved
Aug 6, 2026
DRW logo
DRW
Hard
Quantitative ResearcherNew Grad

Posterior Probability of a Two-Headed Coin After Three Heads

Coin A is fair, coin B lands heads with probability 0.8, and coin C has heads on both sides. One of the three coins is selected uniformly at random an...

Statistics & MathProbability
1
0
15 people solved
Sep 13, 2026
Ramp logo
Ramp
Hard
Software Engineer Locked

Design a Tunable Recurring-Transaction Detector

Design an explainable recurring-transaction detector for noisy subscription data. Explore normalization, grouping, cadence inference, configurable amo...

Software Engineering FundamentalsSystem Design Fundamentals
23
1
419 people solved
Jul 18, 2026
Mixpanel logo
Mixpanel
Medium
Data Scientist

Count Users Retained on Day Seven

Count Users Retained on Day Seven You have these tables: | Table | Column | Meaning | |---|---|---| | users | user_id | User identifier. | | users | s...

Data Manipulation (SQL/Python)SQL
1
0
16 people solved
Sep 14, 2026
Additive Ai logo
Additive Ai
Medium
Software Engineer

Extract W-2 PDF Data and Evaluate It Against Reference JSON

You are given a repository containing W-2 PDF documents and corresponding JSON files that represent the data in those documents. Describe how you woul...

Software Engineering FundamentalsTesting & QualityData Cleaning & Wrangling
1
0
37 people solved
Aug 24, 2026
Medium
Software Engineer

Filter Logs by an Ordered Severity Threshold

Filter log records using a minimum severity level. A threshold includes that level and every higher level; it is not a keyword search in the message. ...

Coding & AlgorithmsArrays & Strings
0
0
11 people solved
Sep 16, 2026
Rippling logo
Rippling
Hard
Software Engineer AI Locked

Implement a Searchable Logger Pipeline

This question evaluates proficiency in software design, data structures, and algorithmic text search by requiring a transformation pipeline, ordered i...

Coding & AlgorithmsData Structure Design
47
2
357 people solved
May 31, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Design Food-Item Reviews, Ratings, and Mutable Vote Counts

Design a food-item review system for one restaurant with one menu and multiple items. Users who purchased an item may review it, and users can upvote ...

System DesignSystem Design Fundamentals
2
0
27 people solved
Sep 5, 2026
Waymo logo
Waymo
Medium
Software Engineer

End-Picking Number Game: Can the First Player Win Under Optimal Play?

Two players play a game on a row of non-negative integers nums. They alternate turns, and Player 1 moves first. On each turn, the current player remov...

Coding & AlgorithmsDynamic Programming
2
0
25 people solved
Sep 10, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Resolve Technical Disagreement and Work Across Different Styles

Describe a technical disagreement with an engineer or lead and how it was resolved. Also explain how you worked effectively with a colleague whose wor...

Behavioral & LeadershipConflict & CollaborationCommunication & Stakeholders
1
0
20 people solved
Sep 10, 2026
Airwallex logo
Airwallex
Medium
Software EngineerSenior+ Locked

Largest Square of Ones

Compute the area of the largest all-ones square in a binary matrix in linear time while using only one row of dynamic-programming state.

Coding & Algorithms
6
0
65 people solved
Sep 2, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Design a Digital Game Distribution Platform

Design a digital game distribution platform spanning transactional purchases, refunds and entitlements, immutable builds, chunked CDN downloads, offli...

System Design
19
0
150 people solved
Aug 16, 2026
Oracle logo
Oracle
Medium
Software EngineerSenior+

Maximum of Fixed-Window Minimums

Given an integer array A and a window length x, consider every contiguous subarray of length x. Find the minimum value in each window, then return the...

Coding & AlgorithmsTwo Pointers & Sliding WindowStacks & Queues
6
0
60 people solved
Sep 9, 2026
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