Interview Questions
Practice the exact questions companies are asking right now.
Questions
9.7k
Companies
511
Updated
08.16.2026
9.7k Questions 511 Companies08.16.2026
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_
"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"
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
"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."
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
"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."
CarlosFull Stack, Shopify
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
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."
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
"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."
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
"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."
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
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
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
Role
Hard
Software EngineerSenior+Use a Fitted Line to Predict a Future Data Point
Use a Fitted Line to Predict a Future Data Point You receive observed points (x_i, y_i) and need to predict y for a future input x_future. Assume a pr...
Machine Learning
8
0
87 people solved
Jul 21, 2026
Medium
Software EngineerReport Tree Levels and Balanced Subtrees
Implement describe_balanced_nodes(values) for a binary tree represented as a zero-based heap array. For an existing node at index i, its children are ...
Coding & Algorithms
0
0
9 people solved
Aug 11, 2026
Medium
Software EngineerNew GradOrganize a Product Initiative Across Stakeholders
Organize a Product Initiative Across Stakeholders Prompt Tell me about a time you brought structure to a product or project initiative that involved s...
Behavioral & Leadership
10
0
132 people solved
Jul 15, 2026
Medium
Software EngineerSenior+Implement a Concurrent Buffered File Logger
Implement a Concurrent Buffered File Logger Design a logger that accepts writes from many threads, buffers records, and appends them safely to one fil...
Software Engineering Fundamentals
2
0
20 people solved
Jul 30, 2026
Medium
Software EngineerHandle Conflict, Expanded Scope, Risk, and Team Culture
Handle Conflict, Expanded Scope, Risk, and Team Culture Prepare four behavioral examples that demonstrate judgment and leadership without assuming for...
Behavioral & Leadership
20
0
163 people solved
Jul 4, 2026
Medium
Software EngineerDesign an Asynchronous Text-to-Video Generation Service
Design an Asynchronous Text-to-Video Generation Service Design a service in which a user submits a text prompt, the system performs a long-running vid...
System Design
3
0
39 people solved
Jul 19, 2026
Medium
Data ScientistDiagnose a Decline in Order Acceptance Rate
Diagnose a Decline in Order Acceptance Rate The order acceptance rate on a delivery marketplace has decreased. Describe how you would determine whethe...
Analytics & Experimentation
11
0
93 people solved
Jul 19, 2026
Hard
Software EngineerDesign a prompt playground
Design a prompt playground for developers and prompt engineers. The product lets users write prompts, choose model settings, run prompts against AI mo...
System Design
339
1
3371 people solved
May 24, 2026
Hard
Software EngineerAdd Nested Begin, Commit, and Abort Semantics to a Shopping Cart
Add Nested Begin, Commit, and Abort Semantics to a Shopping Cart An in-memory shopping cart already supports add(item), remove(item), and a pure disco...
Software Engineering Fundamentals
5
0
90 people solved
Jul 13, 2026
Medium
Software EngineerSimulate Constant-Time Random Courier Selection
Simulate Constant-Time Random Courier Selection Problem Implement simulate_random_picker(operations, random_values). The picker maintains a changing s...
Coding & Algorithms
3
0
14 people solved
Aug 4, 2026
Medium
Software EngineerDesign an Evaluation Platform for a Design-Editing Agent
Design an Evaluation Platform for a Design-Editing Agent A design application includes an agent that edits a user's document from natural-language ins...
ML System Design
3
0
30 people solved
Jul 21, 2026
Medium
Machine Learning EngineerDesign Work Orchestration for Machine-Learning Data Pipelines
Design Work Orchestration for Machine-Learning Data Pipelines Design an orchestration system for data-production workflows used by machine-learning te...
ML System Design
19
0
138 people solved
Jul 8, 2026
Medium
Software EngineerDesign a Read- and Write-Heavy Product Catalog Service
Design a Read- and Write-Heavy Product Catalog Service Design a service in which merchants create and update product listings while users browse and v...
System Design
1
0
21 people solved
Jul 28, 2026
Hard
Software EngineerSenior+ LockedDesign a Task Scheduler for Opaque Long-Running GPU Jobs ("Design Sora")
This system design question evaluates a candidate's ability to architect a distributed job scheduler and orchestrator for expensive, long-running, GPU...
System Design
84
0
576 people solved
Jun 14, 2026
Hard
Software EngineerEvaluate Defensive Testing and Pair Programming
An engineering interview asks you to compare two practices that aim to reduce defects: defensive testing and pair programming. Explain what each pract...
Software Engineering Fundamentals
2
0
17 people solved
Aug 1, 2026
Medium
Software EngineerDesign an Extensible Tax Policy Engine
Design an Extensible Tax Policy Engine You already have a correct evaluator for one progressive-bracket policy. Design the surrounding tax engine so i...
Software Engineering Fundamentals
2
0
17 people solved
Aug 1, 2026
Hard
Software EngineerParallelize Blocking API Calls with a Thread Pool
Parallelize Blocking API Calls with a Thread Pool An existing function loops over a list of inputs and calls a blocking API once per input. Replace th...
Software Engineering Fundamentals
3
0
24 people solved
Jul 26, 2026
Medium
Data EngineerModel Effective-Dated Compliance Restrictions for Securities
Model Effective-Dated Compliance Restrictions for Securities Design a relational system that maps compliance restrictions to every affected security. ...
System Design
2
0
24 people solved
Jul 26, 2026
Easy
Software EngineerPresent a Metrics-Driven Technical Project
Present a Metrics-Driven Technical Project Choose one project you personally worked on and present it to a general software-engineering audience. The ...
Behavioral & Leadership
3
0
23 people solved
Jul 27, 2026
Medium
Software EngineerImplement an Idempotent Versioned Database Update
Design an API operation that updates one database record safely under retries and concurrent writers. The client sends a record ID, expected version, ...
Software Engineering Fundamentals
1
0
10 people solved
Aug 9, 2026