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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
570
Updated
10.05.2026
11.9k Questions 570 Companies10.05.2026
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
Databricks logo
Databricks
Hard
Software EngineerSenior+ Locked

Design a Bookstore Pricing API with Batch Fetches

Design an HTTP pricing service for individual and batched book lookups while making price context and freshness explicit. Key design choices include G...

System Design
17
0
126 people solved
May 10, 2026
Optiver logo
Optiver
Medium
Software Engineer

Days Between Two Calendar Dates

Days Between Two Calendar Dates You are given two dates as strings, each in the format YYYY-MM-DD. Write a function that returns the number of days be...

Coding & Algorithms
13
0
99 people solved
Apr 21, 2026
Scribd logo
Scribd
Medium
Software Engineer

Batch LLM Document Enrichment Pipeline With Fleet-Wide 429 Backoff, Dedup, and Replay

A document platform wants to enrich its stored documents with metadata produced by an external large language model (LLM) API. A batch process sends d...

System DesignJob Scheduling & WorkflowsRate Limiting
0
0
8 people solved
Sep 4, 2026
eBay logo
eBay
Hard
Software Engineer Locked

Determine Reachability for a Chinese-Chess Horse with Blocked Legs

Determine whether a Chinese-chess horse can reach a target on a 10-by-9 board when obstacles block both destinations and the horse's leg squares. The ...

Coding & Algorithms
7
1
66 people solved
Jul 9, 2026
ByteDance logo
ByteDance
Medium
Software EngineerIntern

Explain Virtual Memory Beyond Physical RAM

Explain the difference between a process's virtual memory and the computer's physical RAM. Can a process have a virtual address space larger than the ...

Software Engineering FundamentalsOperating SystemsMemory Management
1
0
23 people solved
Aug 23, 2026
Ramp logo
Ramp
Medium
Software Engineer Locked

Implement a Per-IP Sliding Window Rate Limiter

This Ramp software engineering question evaluates implementation of a per-IP sliding window rate limiter. It prepares candidates to discuss time-windo...

Software Engineering FundamentalsRate LimitingData Structure Design
25
0
180 people solved
Jul 2, 2026
Optiver logo
Optiver
Easy
Software Engineer

Find patterns in numeric sequences quickly

Pattern-Finding Number Sequences (No Calculator) In a fast technical screen, identify the next term for each sequence and briefly explain the rule you...

Statistics & MathMath & Number Theory
37
3
391 people solved
Aug 13, 2025
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Build a Three-Service Refund Workflow over HTTP

Build three separately running HTTP services for orders, refunds, and a durable refund workflow expressed as a dependency graph. The exercise tests re...

Software Engineering FundamentalsMicroservices & Service ArchitectureAPI Design
17
0
181 people solved
Aug 4, 2026
Optiver logo
Optiver
Hard
Software Engineer

Count Bounded Buy-and-Sell Sequences

Count Bounded Buy-and-Sell Sequences You start with k shares. On each transaction day, you either buy one share or sell one share, but holdings may ne...

Coding & Algorithms
7
0
106 people solved
May 3, 2026
Nutanix logo
Nutanix
Hard
Software EngineerSenior+ Locked

Find the Most Reliable Path Through a Network

Find the greatest end-to-end success probability between two endpoints in a large undirected network whose edge probabilities multiply along a path. H...

Coding & Algorithms
4
0
50 people solved
Aug 3, 2026
Omnissa logo
Omnissa
Medium
Software Engineer Locked

Present a Project Architecture and Your Hardest Technical Decision

Prepare a high-level architecture walkthrough and a deep dive into one difficult technical decision from a real project. The framework covers end-to-e...

Behavioral & Leadership
1
0
15 people solved
Sep 4, 2026
Amazon logo
Amazon
Easy
Business Intelligence Engineer Locked

Visualize Trip Duration, Fees, and Survey Outcomes

Design a visual analysis for trip duration, fees, binary survey outcomes, and a fourth segment. Cover distributions, scatter or density plots, facetin...

Analytics & Experimentation
2
0
27 people solved
Aug 14, 2026
Furtherai logo
Furtherai
Medium
Machine Learning EngineerSenior+

Motivation for an Early-Stage AI Startup, Hands-On AI Experience, and Startup Fit

This interview loop includes two conversational rounds that test motivation and fit for a staff-level applied AI engineering role at an early-stage st...

Behavioral & LeadershipMotivation & Fit
0
0
6 people solved
Aug 30, 2026
Together AI logo
Together AI
Hard
Software Engineer

Design a GPU-aware pod scheduler

Design a GPU-aware pod scheduler GPU-Aware Pod Scheduler and Cluster Manager (OO Design) Context You are designing a simplified, object-oriented clust...

System DesignLow-Level Design (OOP)GPU Infrastructure
76
1
1007 people solved
Aug 7, 2025
Waymo logo
Waymo
Medium
Data Scientist

Implement a Safe Average Function in Python

Write a Python function average(table) that returns the arithmetic mean of a list of numbers and returns 0 when the list is empty. Explain the functio...

Data Manipulation (SQL/Python)
16
0
149 people solved
Mar 14, 2026
Rippling logo
Rippling
Medium
Software Engineer Locked

Design a Rule Evaluation Engine for Spending Policy Violations

Prepare for a Rippling software engineering interview question about design a rule evaluation engine for spending policy violations. The prompt highli...

Software Engineering FundamentalsParsing & Interpreters
65
2
1007 people solved
Jul 1, 2026
Gofundme logo
Gofundme
Medium
Data Scientist

Explain an AI Agent You Built: Design, Evaluation, and Governance

Explain an AI Agent You Built: Design, Evaluation, and Governance Describe an AI-agent project you actually worked on. Explain the agent's purpose, th...

ML System DesignProject Deep DiveAI Agents
0
0
5 people solved
Sep 14, 2026
Waymo logo
Waymo
Hard
Software Engineer

Find Dictionary Words Represented by Repeated Letters

Find all dictionary words that could produce a supplied string by repeating characters in place. For example, help can produce heellp by repeating e a...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
1
0
25 people solved
Jun 27, 2026
Mistral AI logo
Mistral AI
Hard
Software Engineer

Design a PDF-to-Markdown Inference API

Problem Statement Design an inference service that converts PDF files into Markdown. Assume the following building blocks already exist and you do not...

ML System DesignGPU InfrastructureMessaging & Event-Driven
70
0
1157 people solved
Apr 16, 2026
Pinterest logo
Pinterest
Medium
Software Engineer Locked

List Unallocated Experiment Buckets

Identify every unallocated bucket in a fixed experiment-traffic range after considering control and enabled-group assignments. This problem examines e...

Coding & AlgorithmsArrays & Strings
16
0
107 people solved
Jul 23, 2026
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