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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.1k
Companies
579
Updated
10.10.2026
12.1k Questions 579 Companies10.10.2026
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
Shopify logo
Shopify
Easy
Software Engineer

How would you improve AI-generated code?

During a pair-programming interview, you wrote the rover simulator code using an AI coding assistant. The code works for the basic examples, but the i...

Software Engineering FundamentalsAI-Assisted DevelopmentCode Quality & Maintainability
55
0
442 people solved
Jan 27, 2026
Oracle logo
Oracle
Medium
Software EngineerSenior+ Locked

Communicate a Difficult Decision to Stakeholders

Describe communicating a difficult technical or delivery decision that changed scope, timing, risk, or a promised outcome. Explain alternatives and un...

Behavioral & Leadership
0
0
15 people solved
Aug 21, 2026
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Design Near-Real-Time Top Songs by Country

Design country-level top-ten song rankings from high-volume listen events with idempotent ingestion, ten-minute refreshes, replay, and low-latency rea...

System Design
2
0
22 people solved
Aug 24, 2026
Palantir logo
Palantir
Medium
Software Engineer

Group employees by shared interests

Given N employees, each with an integer id and a set of interests (strings), write an algorithm to find all employees who share at least one common in...

Coding & AlgorithmsArrays & Strings
31
0
331 people solved
Jul 15, 2025
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Implement idempotent request handling with idempotency keys

This question evaluates understanding of idempotency semantics, idempotency-key handling, concurrency control, synchronization, and in-memory TTL-base...

Coding & Algorithms
9
0
76 people solved
Feb 11, 2026
Bridge logo
Bridge
Medium
Software Engineer

Solve path normalization and nested iterator

1) Normalize Unix-style absolute paths: Given a string representing an absolute Unix file path, return its canonical form. Rules: '.' refers to the cu...

Coding & AlgorithmsData Structure DesignStacks & Queues
26
0
192 people solved
Sep 6, 2025
Balyasny logo
Balyasny
Hard
Software Engineer Locked

Explain Kafka and Design Bulk Record Processing

Explain Kafka message-queue principles and design a bulk-processing path with partition ordering, bounded batching, backpressure, replay, and explicit...

System DesignMessaging & Event-DrivenDistributed Transactions & Idempotency
1
0
28 people solved
May 25, 2026
Moveworks logo
Moveworks
Medium
Software Engineer

Design a car rental booking system

System Design: Car Rental Booking System Design an online car rental system (like Hertz or Avis) that lets users search for available rental cars, get...

System DesignSystem Design FundamentalsConsistency & Availability
95
0
710 people solved
Dec 15, 2025
Capital One logo
Capital One
Medium
Software EngineerSenior+

Count Numbers With Odd Zeros

Given an array a of non-negative integers, count how many elements contain an odd number of digit '0' in their decimal representation. Notes: - Treat ...

Coding & AlgorithmsArrays & Strings
22
0
177 people solved
Jan 20, 2026
Upstart logo
Upstart
Easy
Software Engineer Locked

Scale Ingredient Quantities

Scale ingredient strings by multiplying each leading integer quantity by a serving count while preserving unit, multiword name, and input order. Split...

Coding & Algorithms
5
0
46 people solved
Jul 5, 2026
Lead Bank logo
Lead Bank
Medium
Software Engineer

Implement Stock Price Query APIs

You are given an initial collection of stock price records. Each record contains: - symbol: a stock name or ticker string - timestamp: initially a cal...

Coding & Algorithms
2
0
42 people solved
Apr 1, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Find the Maximum Island Area

Given a two-dimensional binary matrix, return the maximum area of any island. An island is a connected component of cells containing 1, using only up,...

Coding & AlgorithmsGrids & Matrices
1
0
14 people solved
Mar 18, 2026
NVIDIA logo
NVIDIA
Hard
Software Engineer Locked

Implement short algorithms on logs, grids, and strings

This multi-part Coding & Algorithms question evaluates algorithmic problem-solving skills and mastery of core competencies including temporal window r...

Coding & AlgorithmsArrays & Strings
21
0
218 people solved
Feb 11, 2026
Robinhood logo
Robinhood
Medium
Frontend Engineer Locked

Build a Chainable Rectangle Manipulation API

Build a chainable JavaScript API that selects page rectangles, changes color, waits, and shifts them in the order written. Examine fluent state, order...

Software Engineering Fundamentals
5
0
48 people solved
Jul 18, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Explain projects and handle AI-safety conflicts

Behavioral / Hiring Manager round 1. Walk through 1–2 key projects from your resume. - What was the goal and why did it matter? - What was your ...

Behavioral & LeadershipEthics & ResponsibilityProject Deep Dive
40
0
383 people solved
Nov 19, 2025
Databricks logo
Databricks
Hard
Software Engineer

Find shortest path in a Fibonacci-ordered tree

You are given a recursively-defined binary tree T(order) whose shape depends only on order (not on node values). Nodes are labeled 0..N-1 using preord...

Coding & AlgorithmsTrees
36
0
271 people solved
Nov 6, 2025
Scale AI logo
Scale AI
Hard
Machine Learning Engineer

Explain Transformers, attention, decoding, RL, and evaluation

Technical Screen: Transformers, Attention, Decoding, RLHF, Evaluation, and Optimization Context: Assume a modern decoder-only LLM unless stated otherw...

Machine LearningTransformers & AttentionLLM Evaluation
37
0
356 people solved
Sep 6, 2025
MongoDB logo
MongoDB
Medium
Software Engineer Locked

Debug a slow concurrent network server under load

This question evaluates debugging and performance-tuning skills for concurrent network servers, focusing on event-loop behavior, I/O multiplexing, blo...

Software Engineering FundamentalsDebuggingOperating Systems
31
0
213 people solved
Jan 22, 2026
Amazon logo
Amazon
Easy
Software Engineer

Compute minimal operations and optimal server pairing

You are given two independent coding problems. Problem 1: Minimum range-increments to make an array nondecreasing Given an integer array power of leng...

Coding & AlgorithmsGreedySorting
24
0
178 people solved
Dec 17, 2025
Google logo
Google
Medium
Software Engineer

Determine Reporting Relationships

Build an in-memory organization model that supports three operations on employee IDs: 1. add_manager(a, b): employee a is the direct manager of employ...

Coding & Algorithms
7
0
82 people solved
Feb 22, 2026
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