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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
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
MathWorks logo
MathWorks
Medium
Software Engineer

Determine string transform via end-append moves

Given two strings s and t of equal length over lowercase English letters, in one move you may delete any character from s and append it to the end of ...

Coding & Algorithms
3
0
72 people solved
Aug 10, 2025
Cerebras logo
Cerebras
Medium
Software EngineerSenior+

Explain Learning and Conflict Approaches

Behavioral Questions: Learning in Ambiguity, Conflict Management, and Learning Approach Context: You are interviewing for a Software Engineer role in ...

Behavioral & LeadershipConflict & CollaborationAmbiguity & Decision Making
11
0
127 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Data ScientistSenior+

Respond to Difficult Critical Feedback

Respond to Difficult Critical Feedback Tell me about difficult critical feedback you received. Explain what the feedback was, why it was hard to hear,...

Behavioral & LeadershipSelf-Awareness & Growth
5
0
38 people solved
Sep 19, 2026
Adobe logo
Adobe
Medium
Product Manager

Chrome for Laptops, Desktops and Tablets: Vision and a Phased Multi-Year Product Plan

You are the product manager for Google Chrome on large screens. Lay out a three-year innovation roadmap for the product. `hint Define the screen, then...

Product Design & StrategyRoadmapping & PlanningProduct Strategy
0
0
6 people solved
Feb 19, 2026
Google logo
Google
Medium
Software Engineer Locked

Reconstruct original array from doubled shuffle

This question evaluates array manipulation, multiset/frequency reasoning, pairing logic, and careful handling of edge cases such as zeros and negative...

Coding & Algorithms
11
0
100 people solved
Jan 4, 2026
Scale AI logo
Scale AI
Medium
Software Engineer

Implement Hook and Modify UI Interactions

Task: Implement a custom React hook and wire UI interactions Context You are working in a React app that already includes a basic API module and a sim...

Software Engineering FundamentalsReact & UI Frameworks
16
0
208 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Technical Program ManagerSenior+

Answer Amazon leadership behaviorals

In an Amazon L6 Senior Program Manager interview, candidates may be asked several Leadership Principles-style behavioral questions. Prepare senior-lev...

Behavioral & LeadershipOwnership & ExecutionConflict & Collaboration
23
0
228 people solved
Sep 7, 2024
Instacart logo
Instacart
Medium
Software Engineer

Answer standard behavioral questions

Question Answer the standard behavioral questions asked in an Instacart Software Engineer onsite. Use the STAR framework and make your specific impact...

Behavioral & LeadershipProject Deep DiveAmbiguity & Decision Making
19
0
221 people solved
Sep 6, 2025
Snapchat logo
Snapchat
Hard
Machine Learning Engineer

Design real-time top-K POI retrieval on maps

Real-Time Top-K POIs in Viewport: System Design Context Design a real-time system for a mobile map that continuously shows the top-K points of interes...

ML System Design
12
0
120 people solved
Sep 6, 2025
Balyasny logo
Balyasny
Hard
Software Engineer Locked

Schedule Dependent Tasks on a Bounded Thread Pool

Design a bounded multithreaded scheduler that releases tasks after prerequisite completion, handles failures, and preserves dependency and task-state ...

System DesignJob Scheduling & WorkflowsConcurrency
3
0
48 people solved
May 25, 2026
Coinbase logo
Coinbase
Medium
Software Engineer

Describe cross-team collaboration on past projects

In a behavioral interview with an engineering manager, you are asked to discuss your previous project experience, with a particular focus on cross-tea...

Behavioral & LeadershipProject Deep DiveConflict & Collaboration
11
0
98 people solved
Dec 8, 2025
Liftoff logo
Liftoff
Medium
Software Engineer

Implement minimal RLE encode/decode with max run K

You are given a run-length encoding (RLE) format that compresses a string by grouping consecutive repetitions of a short substring. Encoding format An...

Coding & Algorithms
12
0
109 people solved
Feb 11, 2026
LinkedIn logo
LinkedIn
Medium
Data Scientist

Implement stream random sampling in Python

You are given an unbounded stream of items that cannot be stored entirely in memory. Write Python code to maintain a uniform random sample from the st...

Coding & AlgorithmsSampling & Estimation
13
0
113 people solved
Oct 12, 2025
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Implement Event Filtering and Queue Routing

This question evaluates parsing and evaluation of domain-specific filter expressions, JSON traversal and type-aware comparisons, boolean logic handlin...

Coding & Algorithms
7
0
87 people solved
May 30, 2026
Capital One logo
Capital One
Medium
Data Scientist

Dissect a failure and corrective actions

Describe a recent failure. Explain: a) root causes (your decisions vs. external factors) using a 5 Whys or fault-tree; b) early warning signals you mi...

Behavioral & Leadership
7
0
56 people solved
Oct 13, 2025
Uber logo
Uber
Hard
Data Scientist

Explain and validate A/B test assumptions

A/B Test Validity: Core Assumptions, Violations, Diagnostics, and Mitigations You are designing and evaluating an online A/B test for a large, multi-s...

Analytics & ExperimentationExperiment Design (A/B Testing)Hypothesis Testing
16
0
175 people solved
Oct 13, 2025
Chime logo
Chime
Medium
Data Scientist

Design an A/B launch amid marketing confounds

You’re running a virtual launch (soft roll-out) of a new fitness tracker product to US+CA users from 2025-08-10 to 2025-08-24 with a 50/50 user-level ...

Analytics & ExperimentationExperiment Analysis & ReadoutCausal Inference
19
0
167 people solved
Oct 13, 2025
Airbnb logo
Airbnb
Hard
Backend EngineerSenior+ Locked

Design a Rental Marketplace Backend

This question evaluates a candidate's ability to design a scalable, low-latency backend for a global vacation-rental marketplace, testing competencies...

System DesignSystem Design FundamentalsSearch & Feed Systems
35
0
391 people solved
Mar 7, 2026
ADP logo
ADP
Medium
Product Manager

Product design: an applicant tracking system for recruiters, managers and candidates

Design an applicant tracking system (ATS): the product employers use to open roles, collect applications and move candidates through interviews to an ...

Product Design & StrategyProduct Sense
0
0
6 people solved
Feb 20, 2026
TripStack logo
TripStack
Medium
Software Engineer

Compute minimum resources for overlapping intervals

You are given n tasks as half-open time intervals [start, end) on a single day. Determine the minimum number of identical servers needed so that no tw...

Coding & Algorithms
13
0
93 people solved
Sep 6, 2025
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