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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.

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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
Amazon logo
Amazon
Medium
Software Engineer

Max total of k consecutive bags over disjoint valued segments, modulo 1e9+7

Bags stand in a single row that never ends, one bag at every positive integer position 1, 2, 3, .... You are given segments, where segments[i] = [l, r...

Coding & AlgorithmsTwo Pointers & Sliding Window
3
0
33 people solved
Sep 12, 2026
Google logo
Google
Hard
Data Analyst

Balance Fraud Control with User Experience

Balance Fraud Control with User Experience Design a strategy to balance fraud control with improving the experience of legitimate users. Explain how y...

Product / Decision MakingBusiness Case AnalysisMetrics & KPIs
4
0
37 people solved
Sep 9, 2026
DoorDash logo
DoorDash
Hard
Software Engineer

Design a Multi-Service Workflow Engine

Design a Multi-Service Workflow Engine Design and demonstrate a workflow engine whose independent services run on separate ports and call one another ...

System Design
16
0
110 people solved
Sep 1, 2026
Oracle logo
Oracle
Easy
Software Engineer

Replace a Range of Nodes in a Linked List with Another Linked List

You are given two singly linked lists, list1 and list2, and two indices i and j. Replace the nodes of list1 numbered i through j (inclusive) with the ...

Coding & AlgorithmsLinked Lists
1
0
15 people solved
Sep 25, 2026
Glean logo
Glean
Medium
Machine Learning Engineer

AI-Paired Rate-Limited Wikipedia Crawler That Prioritizes Unseen Title Initials

This is a 75-minute assignment in which you pair with an AI coding assistant to build a crawler for Wikipedia. The round required using an assistant, ...

Software Engineering FundamentalsRate LimitingAPI Integration & HTTP Clients
0
0
8 people solved
Sep 30, 2026
Amazon logo
Amazon
Easy
Software Engineer Locked

Evaluate an AI-Assisted Engineering Workflow

Evaluate a concrete AI-assisted engineering workflow by describing delegated work, protected context, verification, and evidence that the approach imp...

Software Engineering FundamentalsTesting & Quality
25
1
473 people solved
Aug 19, 2026
Hudson logo
Hudson
Medium
Data Scientist

Count Smaller Numbers with Only Zero and One in Base Four

A positive integer is a fancy number if its base-4 representation contains only the digits 0 and 1. Implement countFancy(n), which returns the number ...

Coding & AlgorithmsMath & Number Theory
4
0
71 people solved
Sep 9, 2026
Airbnb logo
Airbnb
Hard
Software Engineer Locked

Design a Stateful Working Hours Register

Design a stateful employee working-hours register that handles badge events, completed time, position rankings, delayed promotions, historical pay, an...

Software Engineering FundamentalsLow-Level Design (OOP)Simulation & State Machines
40
0
306 people solved
Jul 20, 2026
Waymo logo
Waymo
Medium
Data Scientist

SQL: Monthly Ride Totals and Average Ratings, Newest Month First

A ride service stores one row per ride. For every calendar month that has at least one ride, report the total number of rides and the average ride rat...

Data Manipulation (SQL/Python)SQL
4
0
32 people solved
Sep 10, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Design a Donation Service with Reliable Payment and Payout Tracking

Design a donation service that collects funds from users and sends payouts to charities. Include a payment service provider and handle payment failure...

System DesignPayments & LedgersAPI Integration & HTTP Clients
2
0
28 people solved
Sep 10, 2026
ByteDance logo
ByteDance
Medium
Data Scientist

Discuss Your Data Analytics and Causal-Inference Experience

Discuss Your Data Analytics and Causal-Inference Experience In a screening conversation for a data science role in integrity and safety, you are asked...

Behavioral & LeadershipProject Deep DiveCausal Inference
1
0
15 people solved
Sep 23, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Design a Chat Assistant Inference Service: Streaming, Free-Tier Limits, GPU Scheduling

Design the serving system behind a ChatGPT-style chat assistant: users send messages in a conversation, and a large language model running on GPUs gen...

System DesignRate LimitingLLM Inference & Serving
2
0
21 people solved
Sep 20, 2026
Amazon logo
Amazon
Medium
Software Engineer

Describe a Deep Debugging Investigation

Describe a problem that required a deep debugging investigation to find the root cause. Explain the symptom, your hypotheses, the evidence you collect...

Behavioral & LeadershipDebugging
1
0
14 people solved
Sep 20, 2026
Palantir logo
Palantir
Medium
Software EngineerIntern

Stack Item and Category Coupons with an Eighty-Percent Cap

Extend a cart-discount calculation to combine item-specific and category-wide coupons. Discounts stack multiplicatively, and the unrounded total disco...

Coding & AlgorithmsMath & Number Theory
6
0
52 people solved
Aug 27, 2026
Stripe logo
Stripe
Medium
Software Engineer

Find the Latest Balance for a Bank Account

Write a PostgreSQL query that returns the latest reported balance for one bank account. Tables bank_balances(bank_name text, account_name text, start_...

Data Manipulation (SQL/Python)SQL
3
0
55 people solved
Aug 31, 2026
NVIDIA logo
NVIDIA
Hard
Software EngineerNew Grad

Verification Plan for a FIFO, a Round-Robin Arbiter and a Valid/Ready Handshake

In a hardware design-verification interview, you are handed a small block and its spec and asked how you would verify it: the verification architectur...

Software Engineering Fundamentals
1
0
21 people solved
Sep 17, 2026
Uber logo
Uber
Hard
Software Engineer

Design the Data Flow Behind a Food Delivery App's Restaurant List

Design the data flow behind the restaurant list in a food delivery app such as Uber Eats. When a customer opens the app with a delivery address, the h...

System DesignGeo & Delivery Systems
0
0
8 people solved
Sep 29, 2026
Databricks logo
Databricks
Medium
Software Engineer

Forward Deployed Engineer Screen: Role Fit, Client Work and Databricks Projects

This is a short recruiter screen, about 15 minutes by phone, for a Forward Deployed Engineer (FDE) role at Databricks, a data and AI platform company....

Behavioral & LeadershipMotivation & Fit
2
0
25 people solved
Sep 12, 2026
Waymo logo
Waymo
Medium
Software Engineer

2D Max Pooling That Also Returns the Coordinates of Each Window Maximum

Implement 2D max pooling over a single-channel grid of integers. A k-by-k window slides over the grid with step stride in both directions, and each wi...

Coding & AlgorithmsGrids & Matrices
2
0
40 people solved
Sep 10, 2026
Capital One logo
Capital One
Hard
Machine Learning Engineer

Count Pairs of Numbers That Become Equal After at Most One Digit Swap

You are given a list of non-negative integers nums. Two numbers form a matching pair if they are equal, or if you can make them equal by choosing one ...

Coding & AlgorithmsArrays & Strings
1
0
34 people solved
Sep 3, 2026
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