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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.0k
Companies
570
Updated
10.05.2026
12.0k Questions 570 Companies10.05.2026
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
Product Analyst Locked

Write SQL for call metrics

This question evaluates a candidate's competency in SQL-based data manipulation and analytics, specifically aggregations, JOINs across relational tabl...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
5
0
54 people solved
Mar 19, 2026
Meta logo
Meta
Medium
Software Engineer

Design structure for top-K frequent elements

You are working with a large collection of items represented by integer IDs (e.g., product IDs, user IDs, etc.). Updates and queries arrive over time....

Coding & Algorithms
4
0
63 people solved
Oct 21, 2025
Uber logo
Uber
Medium
Software Engineer

Enforce ordered execution across threads

Enforce ordered execution across threads Implement a class with three methods alpha(), beta(), and gamma() that may be called by three different threa...

Coding & AlgorithmsConcurrency
9
0
97 people solved
Aug 1, 2025
Snowflake logo
Snowflake
Hard
Data Scientist

Decide and justify product metrics amid trade-offs

Smart Sort Feed Ranking: Metrics, Experiment, Decisions, and Monitoring Context: You are introducing a new Smart Sort ranking for a content feed. It s...

Analytics & Experimentation
6
0
57 people solved
Oct 13, 2025
Microsoft logo
Microsoft
Medium
Machine Learning Engineer

Describe motivation, ownership, and conflict

Expect behavioral and culture-fit questions such as: - Why do you want this role or company? - Tell me about a time you showed ownership without being...

Behavioral & LeadershipMotivation & FitConflict & Collaboration
6
0
86 people solved
Feb 23, 2026
Capital One logo
Capital One
Medium
Data Scientist

Calculate Payback Period for Solar and Corn Projects

Calculate Payback Period for Solar and Corn Projects Energy One must choose between two renewable projects using a simple payback metric: years until ...

Analytics & Experimentation
90
0
331 people solved
Jul 12, 2025
ByteDance logo
ByteDance
Medium
Software Engineer

Design a content moderation platform

Design a large-scale content moderation system for a short-video platform. Users can upload videos, captions, comments, audio, and other metadata. The...

ML System DesignSystem Design FundamentalsAI Safety & Alignment
15
0
106 people solved
Feb 18, 2026
Rippling logo
Rippling
Medium
Software Engineer

Introduce background and choose target team

Introduce background and choose target team Behavioral HR Screen: Software Engineer Prompt Prepare concise, structured responses to the following: 1. ...

Behavioral & LeadershipMotivation & FitProject Deep Dive
14
0
126 people solved
Aug 1, 2025
Snapchat logo
Snapchat
Medium
Technical Program Manager

Tell me about leading through conflict

For an onsite TPM interview, prepare to present a project you led end-to-end and answer behavioral follow-ups such as: - Tell me about a time you work...

Behavioral & LeadershipConflict & CollaborationCommunication & Stakeholders
18
0
137 people solved
Jun 12, 2025
Experian logo
Experian
Medium
Data Scientist

Design Algorithm for Longest Increasing Subsequence Length

Scenario Programming assessment and infrastructure panel Question Design an algorithm to return the length of the Longest Increasing Subsequence of an...

Coding & Algorithms
6
0
54 people solved
Aug 4, 2025
Upstart logo
Upstart
Medium
Software Engineer

Why This Company and Role

Why This Company and Role Explain what you understand about the company and why this particular role interests you. Constraints & Assumptions - Separa...

Behavioral & Leadership
2
0
17 people solved
Jan 15, 2026
Amazon logo
Amazon
Medium
Applied Scientist Locked

Handle cold start, dropout, and training stability

This question evaluates a candidate's understanding of recommender-system cold-start handling, dropout training versus inference behavior, optimizatio...

Machine LearningRecommendation SystemsNeural Networks & Training
10
0
100 people solved
Jan 6, 2026
Meta logo
Meta
Medium
Data Scientist

Design marketplace experiments at DoorDash

You are interviewing for a product data role at DoorDash. Consider the following marketplace scenarios. 1. Top Dasher program DoorDash runs a status p...

Analytics & ExperimentationExperiment Design (A/B Testing)Metric Diagnostics
6
0
82 people solved
Mar 11, 2026
Meta logo
Meta
Medium
Software Engineer

Find Any Local Minimum with Iterative Binary Search

Find Any Local Minimum with Iterative Binary Search Given a nonempty integer array numbers, return the index of any local minimum. An index i is a loc...

Coding & Algorithms
1
0
19 people solved
Mar 2, 2026
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Reconstruct route from unordered travel tickets

This question evaluates understanding of directed graph concepts and sequence reconstruction, assessing the ability to reason about ordered relationsh...

Coding & AlgorithmsGraphs
15
0
232 people solved
Jan 6, 2026
Capital One logo
Capital One
Medium
Data Scientist

Decide whether to partner with Groupon

Decision: Partner with Groupon (Restaurant Unit Economics) Context You are the restaurant owner evaluating a Groupon partnership. The offer structure ...

Behavioral & Leadership
5
0
52 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Data ScientistNew Grad Locked

Evaluate Marketplace Changes

This question evaluates a data scientist's competency in experimental design, causal inference, metrics instrumentation, A/B testing, and marketplace ...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
7
0
100 people solved
Feb 27, 2026
Meta logo
Meta
Hard
Data Scientist

Define metrics for harmful-content severity

Context You are a Data Scientist on the integrity / harmful-content team for a large social media product. Leadership wants a way to track how bad pol...

Analytics & Experimentation
8
0
76 people solved
Sep 19, 2025
Google logo
Google
Medium
Product Manager

Favorite Products & Optimization

Product Sense and Roadmapping Prompt: Favorite Products and Optimization You are interviewing for a consumer-facing Product Manager role. Evaluate pro...

Behavioral & LeadershipProduct Design & ImprovementProduct Sense
14
0
108 people solved
Jul 4, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Resolve a Meaningful Disagreement

Describe a consequential disagreement with a teammate or partner about direction, priority, quality, or risk. Represent both sides fairly, explain the...

Behavioral & Leadership
0
0
7 people solved
May 22, 2026
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