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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
Meta logo
Meta
Medium
Data Scientist

Determine Product Buyer Count and Interaction Percentage

interactions +-----------+----------+------------+----+------------+ | seller_id | buyer_id | product_id | li | create_date| +-----------+----------+-...

Data Manipulation (SQL/Python)
15
0
51 people solved
Jul 12, 2025
Point72 logo
Point72
Easy
Data Engineer Locked

Solve SQL and PySpark Data Tasks

This question evaluates proficiency in SQL query design and PySpark DataFrame manipulation, covering aggregation, filtering, joins, time and numeric f...

Coding & Algorithms
3
0
47 people solved
May 27, 2026
Roblox logo
Roblox
Hard
Machine Learning Engineer

Design a real-time game recommendation system

Design a real-time game recommendation system System Design: Real‑Time Game Recommendation System (Architecture Focus) You are designing a real‑time r...

ML System DesignRecommendation SystemsReal-Time Systems
13
0
225 people solved
Jul 16, 2025
Microsoft logo
Microsoft
Medium
Technical Program Manager

Lead a cross-team launch

You are preparing for a Technical Program Manager behavioral interview. Build structured, interview-ready answers for this prompt cluster from the ori...

Behavioral & LeadershipLeadership & InfluenceRequirements & Launch Execution
12
0
128 people solved
Jan 1, 2024
Figma logo
Figma
Hard
Data Scientist

Describe your most and least engaging work

You are interviewing for a Data Scientist role. The hiring manager asks: What kinds of work have been the most engaging for you, and what kinds have b...

Behavioral & LeadershipMotivation & Fit
18
0
182 people solved
Apr 9, 2026
Amazon logo
Amazon
Medium
Software Engineer

Justify choosing JavaScript for interviews

If given a choice of language, why would you choose JavaScript for front-end interview coding? Compare trade-offs versus TypeScript or Python regardin...

Coding & Algorithms
8
0
62 people solved
Sep 6, 2025
TikTok logo
TikTok
Medium
Data Scientist

Compute and rank top bad advertisers

SQL on ad safety. Assume the following schema and sample rows. Use ANSI SQL. Today is 2025-09-01; interpret “last 7 days” as 2025-08-26 00:00:00 to 20...

Data Manipulation (SQL/Python)
3
0
20 people solved
Oct 13, 2025
TikTok logo
TikTok
Hard
Data Scientist

Measure Billboard Campaign Effectiveness and Engagement Quantification

Measure Billboard Campaign Effectiveness and Engagement Quantification A consumer social platform places billboards in train stations to drive traffic...

Analytics & Experimentation
78
0
313 people solved
Jul 12, 2025
Thumbtack logo
Thumbtack
Medium
Data Scientist

Write monthly new-vs-returning requests SQL

Given the schema and sample data below, write a single PostgreSQL query (no dynamic SQL) that returns, for every calendar month present in requests, t...

Data Manipulation (SQL/Python)
3
0
31 people solved
Oct 13, 2025
Lyft logo
Lyft
Medium
Data Scientist

Assess Cultural Fit Through Behavioral Interview Questions

Assess Cultural Fit Through Behavioral Interview Questions Onsite Behavioral & Leadership Interview — Data Scientist Scenario - 1-on-1 conversation wi...

Behavioral & LeadershipLeadership & InfluenceFailure & Learning
26
0
97 people solved
Aug 4, 2025
Tubi logo
Tubi
Medium
Data Scientist

Explain p‑values to a product manager

Interpreting a Two-Sided A/B Test p-value of 0.03 You ran a two-sided A/B test on conversion rate. Results: - Baseline (control) conversion: 5.0% - Ob...

Statistics & Math
5
0
69 people solved
Oct 13, 2025
Atlassian logo
Atlassian
Medium
Software Engineer Locked

Answer Values and Ownership Questions

This set of questions evaluates interpersonal and leadership competencies including values alignment, ownership, mentorship, teamwork, communication, ...

Behavioral & Leadership
3
0
41 people solved
Nov 10, 2025
Meta logo
Meta
Medium
Software Engineer

Find integer in most intervals

Question Given N integer intervals [ai, bi] (positive integers), find an integer that belongs to the maximum number of intervals (return any such inte...

Coding & Algorithms
9
0
37 people solved
Jul 29, 2025
NVIDIA logo
NVIDIA
Hard
Data Scientist

Design and explain robust web APIs for ML inference

Design an HTTP API for Image-Based Model Predictions Context: Design an HTTP REST API that serves predictions for image inputs (e.g., classification, ...

Coding & Algorithms
3
0
78 people solved
Oct 13, 2025
TikTok logo
TikTok
Easy
Software Engineer Locked

Find the longest palindromic substring

This question evaluates proficiency in string manipulation and algorithmic problem-solving, focusing on palindrome detection and substring handling wi...

Coding & Algorithms
7
0
68 people solved
Feb 12, 2026
Meta logo
Meta
Medium
Software Engineer

Solve three LeetCode coding problems

Question LeetCode 1249. Minimum Remove to Make Valid Parentheses LeetCode 827. Making A Large Island LeetCode 199. Binary Tree Right Side View https:/...

Coding & Algorithms
9
0
46 people solved
Jul 29, 2025
Meta logo
Meta
Medium
Software Engineer

Count subarrays equal to target

Given an integer array nums and an integer k, return the number of contiguous subarrays whose sum equals k. Provide an algorithm better than O(n^ 2), ...

Coding & Algorithms
4
0
47 people solved
Sep 6, 2025
Airbnb logo
Airbnb
Hard
Software Engineer

Enable secure offline reservation caching

System Design: Offline Caching for Reservations (PWA) Design a web application that supports offline access to reservation information. The app is a p...

System DesignCachingCryptography
23
0
233 people solved
Aug 12, 2025
O
Others
Easy
Data Scientist

Answer ancestor-walk queries on a rooted tree

Problem (Tree / Parent Array Queries) You are given a rooted tree with n nodes labeled 1..n, represented by a parent array par[1..n]: - par[i] is the ...

Coding & Algorithms
2
0
42 people solved
Jan 17, 2026
MathWorks logo
MathWorks
Medium
Software Engineer

Calculate cost from orders with SQL

You have two tables: orders(order_id INT, user_id INT, order_date DATE, quantity INT, unit_price DECIMAL, coupon_code VARCHAR) and coupons(code VARCHA...

Data Manipulation (SQL/Python)
1
0
25 people solved
Sep 6, 2025
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