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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
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
Amazon logo
Amazon
Medium
Applied Scientist Locked

Implement Top-p (Nucleus) Sampling in NumPy

This coding question tests practical implementation of top-p (nucleus) sampling, a core decoding strategy in large language models. It evaluates NumPy...

Coding & Algorithms
2
0
49 people solved
Jun 18, 2026
Ziprecruiter logo
Ziprecruiter
Medium
Software Engineer Locked

Implement an in-memory storage with TTL and scans

This question evaluates implementation of an in-memory two-level key->field->value store with TTL semantics, lexicographic scans and prefix filtering,...

Coding & Algorithms
9
0
90 people solved
Feb 12, 2026
Google logo
Google
Medium
Software Engineer

Find fair split of a two-color necklace

Given a circular necklace represented by a string s over {'a','b'}, you may cut the necklace at most twice (yielding three contiguous pieces). Can you...

Coding & AlgorithmsArrays & Strings
24
3
309 people solved
Sep 6, 2025
Snapchat logo
Snapchat
Medium
Machine Learning EngineerNew Grad Locked

Find K Nearest Points

This question evaluates proficiency with Euclidean distance metrics, selection algorithms, and efficient data structures for partial sorting, while re...

Coding & Algorithms
14
0
100 people solved
Feb 2, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Order Courses by Prerequisites, Returning the Smallest Valid Order

There are num_courses courses, numbered 0 to num_courses - 1. Some courses must be completed before others: each pair [a, b] in prerequisites means co...

Coding & AlgorithmsGraphsHeaps & Priority Queues
1
1
17 people solved
Apr 2, 2026
Google logo
Google
Hard
Machine Learning Engineer

Explain transformer architecture and variants

Technical Screen: Explain the Transformer Architecture Scope Provide a structured deep-dive into Transformers. Your explanation should cover theory, s...

Machine LearningTransformers & AttentionNeural Networks & Training
36
0
252 people solved
Sep 6, 2025
Microsoft logo
Microsoft
Medium
Product Manager

PM Behavioral Question: Name a Pet Peeve and Show How You Respond to It

In a Microsoft product manager interview, you are asked to name your pet peeve: something that reliably irritates you. Give the answer you would give ...

Behavioral & LeadershipSelf-Awareness & Growth
0
0
6 people solved
May 29, 2026
xAI logo
xAI
Hard
Machine Learning Engineer

Implement a trie-based tokenizer

Design and Implement a Trie-Based Subword Tokenizer for LLM Pretraining Context You are building a subword tokenizer for a large-scale LLM pretraining...

ML System DesignTransformers & Attention
60
1
469 people solved
Sep 6, 2025
Jane Street logo
Jane Street
Medium
Frontend Engineer

Build a Web Calculator That Matches a Reference App

You are in a 45–60 minute phone screen (with screen sharing) for a Fullstack/Frontend role. The interviewer shares a link to a simple calculator web a...

Software Engineering FundamentalsUI Components & AccessibilityCSS & Layout
24
0
178 people solved
Sep 29, 2025
Amazon logo
Amazon
Hard
Software EngineerSenior+

Evaluate IP Access Rules

You are given a list of IPv4 access-control rules. Each rule consists of: - an action: allow or deny - a CIDR block such as 192.168.0.0/16 You are als...

Coding & AlgorithmsBit Manipulation
19
0
265 people solved
Feb 17, 2026
Microsoft logo
Microsoft
Hard
Software EngineerSenior+

Explain OOP design and API rollout

In one interview round, the discussion focused on practical backend engineering rather than pure algorithms. Discuss both of the following: 1. You are...

Software Engineering FundamentalsLow-Level Design (OOP)API Design
10
0
148 people solved
Apr 7, 2026
Atlassian logo
Atlassian
Medium
Product Manager

Explain your motivation for joining Atlassian as a product manager

In a product manager interview at Atlassian, the interviewer asks what makes you want to join the company. How would you answer? `hint Make it specifi...

Behavioral & LeadershipMotivation & Fit
0
0
13 people solved
Apr 1, 2026
J.P. Morgan logo
J.P. Morgan
Medium
Data ScientistSenior+

Implement Integer Square Root

Given a non-negative integer x, implement sqrt(x) and return the integer part of its square root, i.e., floor(sqrt(x)). Requirements: - Do not use a b...

Coding & AlgorithmsBinary Search
19
0
125 people solved
Apr 24, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Design an In-Memory Pub-Sub Model

Design an object-oriented, in-memory publish-subscribe model. Requirements: - A publisher can publish a message to a topic. - A subscriber can subscri...

Software Engineering FundamentalsLow-Level Design (OOP)Concurrency
17
0
318 people solved
Apr 10, 2026
Applied Intuition logo
Applied Intuition
Medium
Software Engineer

Design a nested transaction store

Implement an in-memory key–value store that supports nested transactions with the operations: SET key value, RETURN key, BEGIN, APPLY (commit current ...

Coding & AlgorithmsData Structure Design
53
0
370 people solved
Sep 6, 2025
Google logo
Google
Medium
Software Engineer

Find Players with Uniquely Determined Rankings

Find Players with Uniquely Determined Rankings Problem There are n players numbered 0 through n - 1. Each result (winner, loser) states that the winne...

Coding & Algorithms
5
2
81 people solved
Apr 19, 2026
Nextdoor logo
Nextdoor
Medium
Machine Learning Engineer

Implement ordering with dependency constraints

You are given n items labeled 0..n−1 and a list of precedence constraints edges[i] = [u, v] meaning u must appear before v. Return a valid ordering of...

Coding & AlgorithmsGraphsHeaps & Priority Queues
17
0
137 people solved
Sep 6, 2025
Shopify logo
Shopify
Medium
Software Engineer Locked

Parse a CSV and Generate a Gift Exchange

Parse escaped CSV participant data and generate a one-to-one gift exchange in which nobody is assigned to themselves. Cover malformed rows, duplicate ...

Software Engineering FundamentalsParsing & InterpretersData Cleaning & Wrangling
10
0
140 people solved
Jul 8, 2026
Uber logo
Uber
Medium
Machine Learning Engineer

Compute currency conversion via graph search

Given a list of currency pairs, e.g., [('USD','CAD'), ('CAD','EUR'), ...], and a parallel list of conversion ratios [1.1, 1.2, ...] where ratio r mean...

Coding & AlgorithmsGraphs
16
0
249 people solved
Aug 13, 2025
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Solve Two Grid Search Problems

This question evaluates proficiency in graph traversal on grids, specifically competencies in identifying connected components and modeling propagatio...

Coding & AlgorithmsGrids & Matrices
24
0
156 people solved
Jan 28, 2026
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