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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
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Making an Engineering Team's Work Estimates Reliable as a Walmart Product Manager

You are a product manager working with a development team at Walmart. How would you make sure the engineers size the work they are assigned accurately...

Product / Decision MakingRoadmapping & PlanningCommunication & Stakeholders
0
0
8 people solved
Aug 7, 2026
Revolut logo
Revolut
Easy
Data Scientist

Define Ultra success metrics and detect suspicious transactions

You work on a fintech product with these existing tables (UTC timestamps). You may only use these tables/columns; if a metric cannot be measured direc...

Analytics & ExperimentationMetrics & KPIsSQL
38
0
346 people solved
Feb 4, 2026
Google logo
GoogleAmazonMeta
Hard
Software Engineer

Locate the Nth Positive Multiple of Either of Two Divisors

Problem A positive number qualifies if it is divisible by a or by b, counting numbers divisible by both only once. Return the nth qualifying number mo...

Coding & AlgorithmsMath & Number TheoryBinary Search
0
0
13 people solved
Oracle logo
Oracle
Medium
Software Engineer Locked

Troubleshoot a Frontend Failure in a Client-Server Application

Debug a frontend failure across browser assets, network requests, backend traces, response contracts, caching, and deployment-specific user cohorts.

Software Engineering FundamentalsDebuggingAPI Integration & HTTP Clients
3
0
45 people solved
Sep 11, 2026
Amazon logo
Amazon
Medium
Software Engineer

Overcoming Major Obstacles to Reach an Important Goal

In a round that combined a behavioral question with a coding exercise, the interviewer opened with: > Tell me about a time you had to overcome signifi...

Behavioral & LeadershipOwnership & Execution
0
0
10 people solved
Aug 29, 2026
Medium
Software Engineer

Find the Longest Substring without Repeated Characters

Given a string, find the maximum length of a contiguous substring containing no repeated character. Constraints and Clarifications Use a length-only r...

Coding & AlgorithmsTwo Pointers & Sliding Window
1
0
15 people solved
Jan 14, 2026
Rippling logo
Rippling
Medium
Software Engineer Locked

Implement Food Delivery Billing

This question evaluates proficiency in implementing business billing rules, time and distance-based fee calculations, timestamp arithmetic, numerical ...

Coding & AlgorithmsArrays & Strings
27
0
298 people solved
Mar 12, 2026
Google logo
GoogleAmazonPaytm

Also asked at Paytm, Infosys, Bloomberg

Medium
Software Engineer

Smallest Subsequence Keeping Each Letter Once

Problem Return the lexicographically smallest subsequence of s that includes each distinct letter appearing in s exactly once. Character order must fo...

Coding & AlgorithmsGreedyStacks & Queues
1
0
9 people solved
Google logo
Google
Medium
Software Engineer

Determine if a 14-tile hand is winning

You are given an integer array tiles of length 14 representing a Mahjong-like hand. Each integer is a tile value from 1 to 9 (single suit). You may re...

Coding & AlgorithmsBacktracking & Recursion
34
1
349 people solved
Mar 9, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Count Four-Neighbor Islands in a Binary Matrix

Given a two-dimensional binary matrix, return the number of islands. An island is a connected component of cells containing 1. Cells connect only thro...

Coding & AlgorithmsGrids & Matrices
3
0
60 people solved
Mar 18, 2026
Swiggy logo
Swiggy
Medium
Product Manager

Swiggy Food Delivery: Product-Led Plan to Grow Revenue 20%

You are the product manager for Swiggy's food delivery business. Your target is to grow revenue by 20%, and the growth is expected to come mainly from...

Product Design & StrategyGrowth & MonetizationBusiness Case Analysis
0
0
11 people solved
Aug 3, 2026
Anthropic logo
Anthropic
Hard
Machine Learning Engineer Locked

Design a Production ML Serving System

This question evaluates a candidate's competency in operating and scaling ML-powered production systems, focusing on scaling, reliability and fault to...

ML System DesignMLOps & Model ServingModel Monitoring & Drift
23
0
260 people solved
Jan 12, 2026
LinkedIn logo
LinkedIn
Easy
Software EngineerSenior+ Locked

Design O(1) Randomized Multiset

This question evaluates data-structure design skills, understanding of hashing and randomization for uniform sampling, handling of duplicate elements,...

Coding & AlgorithmsData Structure DesignArrays & Strings
17
0
165 people solved
Apr 6, 2026
Google logo
GoogleAmazonBloombergMeta

Also asked at Bloomberg, Meta

Easy
Software Engineer

Total Commas in a Bounded Integer Range

Problem Write every integer from 1 through n, inclusive, in ordinary decimal notation with commas separating groups of three digits from the right. Re...

Coding & AlgorithmsMath & Number Theory
0
0
10 people solved
Optiver logo
Optiver
Easy
Data Scientist

Compute probabilities and expectations in random processes

This is a rapid-fire probability and expectation round: a sequence of short, self-contained brain-teasers solved on a whiteboard. The interviewer expe...

Statistics & MathProbabilityPuzzles & Brainteasers
34
0
414 people solved
Nov 19, 2025
Amazon logo
Amazon
Medium
Software EngineerNew Grad Locked

Resolving a Meaningful Conflict

Prepare a workplace conflict example that fairly presents competing evidence, your decision process, the outcome, and relationship impact.

Behavioral & Leadership
2
0
34 people solved
Aug 20, 2026
Amazon logo
Amazon
Easy
Data ScientistIntern

Evaluate NLP Classification Models

You are interviewing for a Data Scientist internship at Amazon. The interviewer asks you to walk through how you think about an NLP classification pro...

Machine LearningModel Evaluation
34
0
409 people solved
Apr 3, 2026
Stripe logo
Stripe
Medium
Software EngineerSenior+

Staff Behavioral: Deciding With Incomplete Info, Stakeholder Alignment, Mentoring

This is the behavioral portion of a staff-level software engineering loop. The interviewer works through several story prompts and probes each one wit...

Behavioral & LeadershipLeadership & InfluenceAmbiguity & Decision Making
3
0
38 people solved
Feb 22, 2026
Databricks logo
Databricks
Medium
Software Engineer Locked

Design KV store with sliding-window QPS metrics

This question evaluates designing an in-memory key–value store with sliding-window throughput metrics, testing competencies in data structures, concur...

System DesignData Structure Design
28
0
349 people solved
Nov 8, 2025
Coursera logo
Coursera
Medium
Product Manager

Measuring Whether an Employer LMS Integration Pays Off for Coursera

Coursera sells companies access to its catalog so they can train their employees. Many large employers run training through a corporate learning manag...

Analytics & ExperimentationLaunch EvaluationCausal Inference
1
0
7 people solved
Aug 20, 2026
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