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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
TikTok logo
TikTok
Medium
Data Scientist

Identify Repeat Advertisers from Consecutive Weeks

SUBMISSIONS +--------------+-----------+-----------+ | advertiser_id| ad_id | week_id | +--------------+-----------+-----------+ | A123 ...

Data Manipulation (SQL/Python)
1
0
17 people solved
Aug 4, 2025
Amazon logo
Amazon
Medium
Software Engineer

Behavioral: Resolving a Workplace Conflict and Using Generative AI in Your Work

In the behavioral part of a software engineering onsite, you are asked two questions: one about a conflict you worked through, and one about how you h...

Behavioral & LeadershipConflict & Collaboration
0
0
5 people solved
Mar 11, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Market a new AI technique

Market a new AI technique Context You are a software engineer introducing a new technique and planning a public blog post to drive developer adoption....

System Design
4
0
79 people solved
Aug 4, 2025
Current logo
Current
Medium
Software Engineer

Compute balances and array queries

Question Given a list of transactions where each transaction has a userId and an amount (positive for credit, negative for debit), compute the final b...

Coding & Algorithms
8
0
77 people solved
Aug 4, 2025
Apple logo
Apple
Medium
Software Engineer

Refactor rock–paper–scissors for config and ties

Refactor an existing Rock–Paper–Scissors tournament with three robot players so that the number of rounds is configurable and the system also tracks t...

Coding & AlgorithmsLow-Level Design (OOP)Code Quality & Maintainability
10
0
176 people solved
Sep 6, 2025
Moloco logo
Moloco
Hard
Software Engineer

Compute subarray span for each element

You are given an integer array nums of length n. For each index i (0 <= i < n), define ans[i] as the maximum possible length of a contiguous subarray ...

Coding & Algorithms
9
0
80 people solved
Nov 9, 2025
Meta logo
Meta
Medium
Data Scientist

Write SQL to compare social-only vs game-only engagement

You are given two tables capturing Oculus app usage. Define an 'active day' as a UTC date on which a user generates at least one event. Consider only ...

Data Manipulation (SQL/Python)SQLSegmentation & Cohort Analysis
43
1
363 people solved
Oct 13, 2025
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
116 people solved
Sep 6, 2025
Apple logo
Apple
Medium
Software Engineer Locked

Merge overlapping time intervals

This question evaluates competence in interval and array manipulation, sorting-based algorithm design, overlap detection, and efficient time/space com...

Coding & AlgorithmsIntervals & SchedulingSorting
16
1
143 people solved
Feb 12, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Explain a graphics testing project in depth

Explain a graphics testing project in depth Behavioral: End-to-End Walkthrough of a Graphics Testing Project Context: You are interviewing for a softw...

Behavioral & LeadershipProject Deep DiveTesting & Quality
9
0
93 people solved
Aug 9, 2025
Amazon logo
Amazon
Medium
Product Manager

Late but Critical Colleague

Behavioral Scenario: Late but Critical Colleague You run a recurring bi-weekly cross-functional planning or metrics review meeting. A teammate who own...

Behavioral & Leadership
9
1
87 people solved
Jul 4, 2025
Citadel logo
Citadel
Medium
Data Scientist

Update No-Intercept Regression Slopes Across Batches

Data arrives in M batches. Each x_batches[b] and y_batches[b] is a matrix with the same number N of columns and the same number of rows within batch b...

Coding & Algorithms
4
0
49 people solved
Apr 15, 2026
Meta logo
Meta
Medium
Data Scientist

Analyze Recent Calling Behavior in France Using SQL

CALLS +---------+---------+---------------------+-------------------+----------+ | call_id | user_id | call_start_time | participant_cnt | is_vi...

Data Manipulation (SQL/Python)
70
0
203 people solved
Jul 12, 2025
PayPal logo
PayPal
Medium
Data Scientist

Resolve Conflicts in Data Science Leadership Scenarios

Resolve Conflicts in Data Science Leadership Scenarios Behavioral and Leadership Prompts (Onsite — Data Scientist) Use the STAR method (Situation, Tas...

Behavioral & Leadership
10
0
86 people solved
Aug 4, 2025
DoorDash logo
DoorDash
Easy
Machine Learning Engineer Locked

Walk Through an ML Project

This question evaluates end-to-end machine learning engineering competencies, including problem framing and impact, individual ownership, data and mod...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
7
0
85 people solved
Jan 25, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer

Detect intersection of two linked lists

Given two singly linked lists that may converge to share a common tail, determine whether they intersect and return the first node at which they join....

Coding & Algorithms
6
0
83 people solved
Sep 6, 2025
LinkedIn logo
LinkedIn
Medium
Data Scientist

Improve Profile Completion Rate

Increasing LinkedIn Profile Completion Profile completeness affects members' visibility in search, job matches, recruiter outreach, and trust. Assume ...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
32
0
103 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Data Scientist

Describe Handling Cross-Functional Projects and Changing Priorities

Describe Handling Cross-Functional Projects and Changing Priorities This behavioral prompt evaluates how you collaborate across functions, respond to ...

Behavioral & LeadershipConflict & CollaborationLeadership & Influence
54
0
106 people solved
Jul 12, 2025
Upstart logo
Upstart
Hard
Data Scientist

Explain tackling ambiguity and defending a decision

Behavioral: Ambiguous Analytics With Incomplete Data and a Tight Deadline Context: You're a Data Scientist interviewing in a technical screen focused ...

Behavioral & LeadershipAmbiguity & Decision MakingCommunication & Stakeholders
13
0
115 people solved
Oct 13, 2025
Point72 logo
Point72
Medium
Quantitative Researcher

Calibrate the Risk-Aversion Parameter

Calibrate the Risk-Aversion Parameter A mean-variance portfolio optimizer uses expected return minus a risk-aversion parameter times predicted varianc...

Statistics & Math
1
0
21 people solved
Jun 7, 2025
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