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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

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>Build a 30-day plan from PracHub's Meta SWE questions.

Two weeks of coding, then system design, then mock rounds. Start day 1?

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
Rippling logo
Rippling
Hard
Software Engineer

Evaluate Expense and Trip-Level Rules as Data

Evaluate expense-level rules and trip-level spending rules. Rules must be supplied as data; do not hard-code a separate branch for each business rule....

Coding & AlgorithmsParsing & InterpretersCode Quality & Maintainability
17
0
194 people solved
Sep 11, 2026
Google logo
Google
Medium
Software Engineer

Predict the Most Frequent Next Word in Constant Time

Predict the Most Frequent Next Word in Constant Time You are given training sequences of words and a list of query words. For every adjacent pair in e...

Coding & Algorithms
160
1
1146 people solved
Sep 3, 2026
Google logo
Google
Hard
Software Engineer

Implement a URL router that matches request paths against patterns with placeholders

Implement a URL request router for a web service. The router supports two operations: 1. processHandler(String handler) registers a handler pattern, f...

Software Engineering FundamentalsData Structure DesignTrees
6
0
62 people solved
Sep 29, 2026
Stripe logo
Stripe
Medium
Software Engineer Locked

Parse and Format Arbitrarily Nested Tasks from CSV

Parse valid CSV records into an arbitrarily nested task forest and render deterministic tree lines while preserving quoted names, root order, sibling ...

Coding & AlgorithmsParsing & InterpretersTrees
116
2
1342 people solved
Aug 25, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Order Tasks with Dependencies Using a Deterministic Topological Sort

Tasks have prerequisite tasks and form a directed acyclic graph. Return a valid execution order in which each task appears after all its prerequisites...

Coding & AlgorithmsGraphsHeaps & Priority Queues
29
0
337 people solved
Sep 17, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

In-Memory Key-Value Store with Crash Recovery from a Log and Concurrent Access

Implement a key-value store that keeps its data in memory, can rebuild that data from a log file after the process goes down unexpectedly, and is safe...

Software Engineering FundamentalsKey-Value StoresConcurrency
7
0
82 people solved
Sep 20, 2026
Roblox logo
Roblox
Hard
Software Engineer

Count Distinct Hat Assignments and Maximize Hat Points

Each person lists the hats they are willing to wear. Assign one acceptable hat to every person, using each hat at most once. Every hat also has a poin...

Coding & AlgorithmsDynamic ProgrammingBacktracking & Recursion
12
0
110 people solved
Sep 20, 2026
Stripe logo
Stripe
Medium
Software Engineer

Validate CSV Company Records for Missing Fields, Length, Forbidden Words and Overlap

You are given a batch of company records as CSV text: a header row that names the fields, followed by one row per company. Write a validator that chec...

Software Engineering FundamentalsArrays & StringsData Cleaning & Wrangling
62
1
602 people solved
Sep 22, 2026
Stripe logo
Stripe
Medium
Software Engineer

Parse Parent-Child Task Records and Render Them as a Connector Tree

You receive a list of task records and must rebuild the hierarchy of tasks and subtasks they describe, then print it as a text tree. The specification...

Software Engineering FundamentalsTrees
17
0
246 people solved
Sep 30, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Greedy Longest-Match Tokenization of a String Against a Fixed Vocabulary

A tokenizer splits text into tokens drawn from a fixed vocabulary. You are given a string text and a list vocab of distinct, non-empty strings. The to...

Coding & AlgorithmsString Algorithms
11
2
121 people solved
Sep 18, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Design an IoT Logging Platform with Late-Arriving Metrics

Design a logging platform for a large fleet of devices. Devices must continue collecting logs while online or offline and upload batches when connecte...

System DesignObservabilityBatch & Stream Processing
51
0
551 people solved
Sep 7, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Plant Infection Grid Simulation: Days to Stabilize, Immune Plants, Expiring Immunity

A garden is an R × C grid. Each cell is empty, holds a healthy plant, or holds an infected plant. The infection spreads in daily steps: on each day, e...

Software Engineering FundamentalsGrids & Matrices
22
0
177 people solved
Sep 20, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Leftmost-Fit Memory Allocator: Allocate Consecutive Units and Free by Owner

You manage a memory of n units, indexed 0 to n - 1, all free at the start. Process a list of operations in order, each of which produces one recorded ...

Coding & AlgorithmsData Structure DesignTrees
22
0
163 people solved
Sep 20, 2026
Amazon logo
Amazon
Hard
Software Engineer

Fix a Buggy Spring Boot Movie Search Against Five Search Rules

You are given an existing Spring Boot backend that powers a movie search feature, and the search returns wrong results. The search logic is complicate...

Software Engineering FundamentalsDebugging
9
0
90 people solved
Sep 30, 2026
Google logo
Google
Hard
Software Engineer

Group prerequisite-linked courses into the earliest possible rounds

There are n courses numbered 0 to n - 1. Each pair [a, b] in prerequisites means course b must be completed before course a can be taken. Courses are ...

Coding & AlgorithmsGraphs
5
0
57 people solved
Sep 29, 2026
Google logo
Google
Medium
Data Scientist

Explain P-values and Confidence Intervals in Simple Linear Regression

Explain P-values and Confidence Intervals in Simple Linear Regression Discuss p-values, confidence intervals and simple linear regression. To make the...

Statistics & MathHypothesis TestingRegression & Statistical Modeling
6
0
96 people solved
Sep 23, 2026
Google logo
Google
Medium
Software Engineer

Minimum Number of Rooms to Schedule Overlapping Meetings

You are given a list of meetings, where meetings[i] = [start, end] means meeting i occupies the half-open time interval [start, end). Every meeting mu...

Coding & AlgorithmsIntervals & Scheduling
24
1
188 people solved
Sep 7, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Spreadsheet engine with setCell/getCell, cell references, and cycle detection

Implement a spreadsheet engine with two operations: - set_cell(cell, content) stores the content of a cell (setCell in camelCase languages). A cell is...

Software Engineering FundamentalsGraphs
19
0
179 people solved
Sep 28, 2026
OpenAI logo
OpenAI
Hard
Data Scientist

Plan a Free-Trial Analysis and Defend Its Recommendations

Plan a Free-Trial Analysis and Defend Its Recommendations A data science take-home assignment concerns a free trial. The assignment asks you to explor...

Analytics & ExperimentationUser Behavior & FunnelsCommunication & Stakeholders
5
0
60 people solved
Sep 27, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Fault-Tolerant Work Queue with Leases, Fencing Tokens and DAG Task Dependencies

Implement a fault-tolerant work queue for an infrastructure platform. Producers submit tasks; a pool of workers repeatedly claims a task, runs it, and...

Software Engineering FundamentalsJob Scheduling & WorkflowsDistributed Coordination
11
0
105 people solved
Sep 20, 2026
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