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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
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
Akuna Capital logo
Akuna Capital
Medium
Software Engineer

Solve swaps, graph paths, and movie DP

Solve swaps, graph paths, and movie DP Design and implement solutions for three tasks derived from a HackerRank-style assessment. 1) Minimum swaps to ...

Coding & Algorithms
8
0
125 people solved
Aug 8, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Build a Binary Tree from Descriptions

Construct a binary tree from parent-child-side descriptions and return its root, following the cited tree-construction problem.

Coding & Algorithms
1
0
17 people solved
Aug 28, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Implement anagram check and odd-even linked list

You are given two independent coding tasks. Task 1: Check if two strings are anagrams Implement a function that determines whether two given strings a...

Coding & AlgorithmsArrays & StringsLinked Lists
12
0
99 people solved
Oct 6, 2025
Bloomberg logo
Bloomberg
Medium
Software Engineer

Introduce yourself and explain why Bloomberg

Behavioral questions 1. Self-introduction / resume walkthrough - Give a 1–2 minute overview of your background. - Highlight 1–2 projects you’ve ...

Behavioral & LeadershipMotivation & FitProject Deep Dive
24
0
239 people solved
Jan 6, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Identify the Extra Directed Edge

You are given a list of directed edges edges, where each edge is represented as [parent, child]. The graph contains nodes labeled from 1 to n, and it ...

Coding & AlgorithmsGraphs
8
0
100 people solved
Jan 3, 2026
Pinterest logo
Pinterest
Hard
Data Scientist

Diagnose CTR drop after recommendation launch

Experiment Diagnosis: Horizontal Recommendations Carousel on Home Context A new horizontal recommendations carousel was launched on the home page. In ...

Analytics & ExperimentationMetric DiagnosticsExperiment Analysis & Readout
11
0
150 people solved
Oct 13, 2025
Two Sigma logo
Two Sigma
Hard
Data ScientistIntern

Implement Univariate Linear Regression with Ordinary Least Squares

Implement univariate (simple) linear regression fitted in batch with the ordinary least squares (OLS) closed-form solution. You must implement the for...

Coding & Algorithms
2
0
27 people solved
Nov 15, 2025
Xometry logo
Xometry
Medium
Machine Learning EngineerSenior+

Optimize Model Serving Under 200ms

A data science team gives you a trained model and asks you to deploy it as an online inference service. The requirement is that a single prediction mu...

ML System Design
2
0
38 people solved
Mar 7, 2026
Snapchat logo
Snapchat
Medium
Data Scientist

Compute same-day acceptance metrics last week

Assume today is 2025-09-01; interpret 'last week' as 2025-08-25 through 2025-08-31 inclusive, using UTC dates. You have the following schema and sampl...

Data Manipulation (SQL/Python)
4
0
36 people solved
Oct 13, 2025
Medium
Software Engineer

Explain RF/analog IC interview fundamentals

Explain RF/analog IC interview fundamentals You are interviewing for an RF/analog IC design role. Answer the following conceptual questions (no code r...

Software Engineering Fundamentals
13
0
182 people solved
Aug 5, 2025
Robinhood logo
Robinhood
Medium
Data Scientist

Identify Overlapping Sessions and Optimize Coverage

Identify Overlapping Sessions and Optimize Coverage Scenario During the technical screen, candidates must implement interval algorithms used in fraud-...

Coding & AlgorithmsIntervals & SchedulingDynamic Programming
16
0
148 people solved
Aug 4, 2025
Amazon logo
Amazon
Hard
Software Engineer

Design a scalable parking lot system

Design a scalable parking lot system System Design: Multi-Level Parking Lot Service Context Design a production-grade parking lot system for a large, ...

System DesignSystem Design FundamentalsLow-Level Design (OOP)
17
0
128 people solved
Jul 16, 2025
Amazon logo
Amazon
Medium
Software Engineer

Design a Train Fare Calculator with Dynamic Stations and a Weekend Fare Cap

A train line serves five stations in this order: `text G → U → H → K → I ` Riding between two adjacent stations costs 1, and a trip costs the sum of t...

Software Engineering FundamentalsLow-Level Design (OOP)
0
0
1 people solved
Aug 29, 2026
Meta logo
Meta
Medium
Software Engineer

Design prefix-sum function and max stack

Question LeetCode 303. Range Sum Query – Immutable (design a reusable prefix-sum function) LeetCode 716. Max Stack (similar design question) https://l...

Coding & Algorithms
8
0
48 people solved
Jul 29, 2025
Upstart logo
Upstart
Medium
Software Engineer

Professional Introduction for a Recruiter Screen

Professional Introduction for a Recruiter Screen Give a concise professional introduction that connects your current strengths, relevant experience, a...

Behavioral & Leadership
2
0
17 people solved
Jan 15, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Set second tree values by subtree sums

Given the roots of two complete binary trees T1 and T2 that have identical structure and the same number of nodes, replace each value in T2 with the s...

Coding & AlgorithmsTrees
14
1
118 people solved
Sep 6, 2025
LinkedIn logo
LinkedIn
Medium
Data Scientist

Single Queue vs Multiple Queues — Service Design

Bank Branch Queue Design: Single Queue Versus Multiple Queues A bank branch has c identical tellers. Customers arrive approximately as a Poisson proce...

Analytics & Experimentation
23
0
98 people solved
Jul 12, 2025
Optiver logo
Optiver
Medium
Quantitative Trader

Compare two programs for equivalence

You are given two short programs (or functions) that process an integer array A (|A| ≤ 10^ 5). Determine whether they are functionally equivalent for ...

Coding & AlgorithmsTesting & QualityProgramming Languages
11
0
128 people solved
Sep 6, 2025
Microsoft logo
Microsoft
Medium
Machine Learning Engineer Locked

Find the Lowest Common Ancestor in a Binary Search Tree

Find the lowest common ancestor of two values in a binary search tree represented in level-order form. Use the BST ordering invariant to locate the fi...

Coding & Algorithms
2
0
24 people solved
Jun 21, 2026
Microsoft logo
Microsoft
Medium
Machine Learning Engineer Locked

Implement a resumable data loader

This question evaluates a candidate's ability to design stateful, resumable data iteration with deterministic shuffling and compact serializable check...

Coding & Algorithms
6
0
69 people solved
Feb 11, 2026
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