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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
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Infosys, Josh Technology, Microsoft, Meta, JTG, Zoho, CleverTap, Adobe, Oracle, TikTok, Nykaa, Goldman Sachs, Tracxn, NVIDIA, Accenture

Medium
Software Engineer

Maximize the Canonical Concatenation of Integer Spellings

Problem Arrange all given nonnegative integers so that concatenating their ordinary decimal spellings forms the largest possible number. Return that n...

Coding & AlgorithmsSorting
0
0
7 people solved
OpenAI logo
OpenAI
Hard
Machine Learning Engineer

Analyze matrix multiplication complexity

In an ML coding interview, you're handed a PyTorch file and asked a series of complexity questions about the operations in it. One of them: Given two ...

Software Engineering Fundamentals
97
0
674 people solved
Feb 11, 2026
Figma logo
Figma
Medium
Software Engineer Locked

Validate a Balanced INDENT and DEDENT Token Stream

Validate whether an INDENT and DEDENT token stream remains balanced at every prefix and closes all open levels at the end. This compact problem tests ...

Coding & AlgorithmsStacks & Queues
23
1
221 people solved
Jul 21, 2026
Remitly logo
Remitly
Medium
Staff AI-Native Engineer Locked

Build a Transfer-Fee Comparison Prototype

Build a transfer-fee comparison prototype for a corridor and amount using provider APIs, public web flows, or verified third-party data. Normalize exp...

System Design
7
0
70 people solved
Aug 6, 2026
Bank of America logo
Bank of America
Medium
Data Scientist Locked

Show Initiative, Analytical Judgment, and Relationship Building

Practice examples of taking initiative, solving a complex problem through careful analysis, and building a trusted relationship with a teammate or cli...

Behavioral & LeadershipOwnership & ExecutionAmbiguity & Decision Making
3
0
30 people solved
Sep 10, 2026
Apple logo
Apple
Medium
Product Manager

Post-Launch Scorecard for an Apple Release: Customer Experience and Competitive Position

Apple refreshes its products on a regular cadence, adding features and changing designs. Take a recent update to an Apple product and explain how you ...

Analytics & ExperimentationLaunch EvaluationCausal Inference
1
0
14 people solved
Aug 13, 2026
Glean logo
Glean
Medium
Software Engineer Locked

Restore an Array with One Displaced Element

Restore a nearly sorted array after at most one element was removed and reinserted elsewhere. The problem tests linear-time reasoning, constant auxili...

Coding & Algorithms
9
0
85 people solved
Jul 2, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Medium
Data Scientist

Test Fairness of an Election Agenda under Equal Ranking Counts

Voters rank candidates A,B,C. Each candidate receives the same number of first-place rankings and the same number of second-place rankings. Candidate ...

Statistics & MathPuzzles & Brainteasers
0
0
9 people solved
Aug 28, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Design Payment Authorization, Capture, and Batch Settlement

Design a payment platform spanning low-latency authorization, later capture, and asynchronous batch settlement with external providers. Cover idempote...

System Design
8
1
118 people solved
Aug 14, 2026
Amazon logo
Amazon
Hard
Software Engineer Locked

Design a Distributed Job Scheduler with Run Logs and Exactly-Once Execution

Design a distributed job scheduler that runs one-time and recurring jobs on a pool of workers, stores every run's execution logs for later retrieval, ...

System DesignJob Scheduling & WorkflowsDistributed Coordination
4
0
81 people solved
Sep 3, 2026
Serval logo
Serval
Medium
Software Engineer Locked

Model Flights, Passengers, Bookings, and Seat Holds

Design a relational flight-booking model for passengers, scheduled departures, seat reservations, and temporary holds. Explain efficient lookup in bot...

System Design
7
0
117 people solved
Jul 12, 2026
Amazon logo
AmazonGoogleMicrosoftCouchbase

Also asked at Microsoft, Couchbase

Easy
Software Engineer

Place Even Values at Even Indices and Odd Values at Odd Indices

Problem Exactly half the values in nums are even and half are odd. Rearrange the array so every index has a value of matching parity: even indices con...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
13 people solved
ByteDance logo
ByteDance
Medium
Data Scientist

Design metrics for a short-video app's direct messaging feature

A short-video social app has a direct messaging (DM) feature: users can send private messages to one another and share videos from their feed into a c...

Analytics & ExperimentationMetrics & KPIs
0
0
2 people solved
Nov 2, 2026
Meta logo
Meta
Easy
Software Engineer

Implement Multi-Level In-Memory Services

Implement the following independent multi-level in-memory service simulations. In an interview, you may receive one scenario and unlock the levels seq...

Coding & Algorithms
7
0
84 people solved
Apr 4, 2026
Optiver logo
Optiver
Hard
Software EngineerNew Grad

Reviewing a Freight-Scheduler Codebase: Bugs, Data Structures, and Concurrency

You have just finished implementing process_order(...) inside a large provided codebase for a freight-scheduling system (this is the review stage of a...

Software Engineering FundamentalsConcurrencyDebugging
37
1
445 people solved
Nov 16, 2025
Hudson River Trading logo
Hudson River Trading
Hard
Software Engineer Locked

C++ Fundamentals: Memory, Compilation, and Containers

This question tests deep knowledge of C++ internals, covering memory management, compilation mechanics, and standard container trade-offs. It evaluate...

Software Engineering Fundamentals
25
0
198 people solved
Jun 14, 2026
Anduril logo
Anduril
Medium
Software Engineer

Can the Second Tree-Coloring Player Force a Majority?

Problem A binary tree has n distinct values 1 through n, with n odd. The first player initially colors node x red. You choose another node y to color ...

Coding & AlgorithmsTrees
1
0
13 people solved
Microsoft logo
Microsoft
Medium
Product Manager

Azure Startup Strategy: First Product Bets to Win Early-Stage Companies

Microsoft wants more startups to choose Azure, its cloud platform, and to build their companies on it. As a product manager, decide which product chan...

Product Design & StrategyProduct StrategyGrowth & Monetization
1
0
17 people solved
Oct 4, 2026
Mintlify logo
Mintlify
Medium
Backend EngineerSenior+

Should you add an index for a slow query on a large table's unindexed columns?

A query against a large database table is slow, and the columns the query filters on have no index. Should you add an index? Explain how you would dec...

Software Engineering FundamentalsIndexing & Query Performance
1
0
14 people solved
Sep 27, 2026
Pinterest logo
Pinterest
Medium
Machine Learning EngineerSenior+

Walk through an ML project you owned: key decisions, evaluation and impact

You are in a technical phone screen for a senior machine learning engineer role. The call has two parts: a coding exercise and a project deep dive. Fo...

Behavioral & LeadershipProject Deep DiveML System Design
3
0
30 people solved
Jun 19, 2026
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