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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
Meta logo
Meta
Medium
Software EngineerSenior+ AI Locked

Solve Tree Columns And Maze Variants

This question evaluates tree traversal and column-based grouping skills along with grid-based graph search, state modeling, and handling dynamic maze ...

Coding & Algorithms
8
0
99 people solved
May 21, 2026
Rippling logo
Rippling
Medium
Software Engineer Locked

Prevent Duplicate Payments Under High Load

This system design question tests a candidate's ability to reason about idempotency, distributed consistency, and fault tolerance in high-throughput p...

System DesignPayments & LedgersDistributed Transactions & Idempotency
83
1
878 people solved
May 30, 2026
Bloomberg logo
BloombergGoogleMeta

Also asked at Meta, Microsoft, Amazon, DoorDash, Oracle, Uber, Roku, Salesforce

Hard
Software Engineer

Order Binary-Tree Nodes by Column, Depth and Value

Problem Place the root at(row0,column0). A left child moves to(row+1,column-1), and a right child to(row+1,column+1). Return columns from left to righ...

Coding & AlgorithmsTreesSorting
1
0
10 people solved
Google logo
GoogleAmazonEY

Also asked at EY, Bloomberg, Microsoft, Meta

Medium
Software Engineer

Count Nonempty Binary Segments with an Exact Sum

Problem Given binary array nums and goal, count the nonempty contiguous subarrays whose sum equals goal. Return the number of index intervals, includi...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
0
0
12 people solved
Harvey logo
Harvey
Medium
Software Engineer Locked

Implement a Database Connection Pool

This question evaluates skills in concurrent resource management, synchronization primitives, and robust connection lifecycle handling within database...

Coding & AlgorithmsConcurrency
42
1
378 people solved
Feb 25, 2026
Google logo
Google
Easy
Software Engineer

Weekday of a Valid Gregorian Date

Problem Given day, month and year, return its weekday spelled exactly as Sunday, Monday, Tuesday, Wednesday, Thursday, Friday or Saturday. The date is...

Coding & AlgorithmsMath & Number Theory
2
0
15 people solved
Databricks logo
Databricks
Medium
Product Manager

Narrate your career history and job moves in a PM interview

You are interviewing for a product manager role, and the interviewer asks you to take them through your background as it appears on your resume. How d...

Behavioral & LeadershipMotivation & Fit
0
0
9 people solved
Sep 3, 2026
Amazon logo
AmazonAppleGoogle
Medium
Software Engineer

Replace Each BST Value with Its Original Greater-or-Equal Sum

Problem Convert the given binary search tree so each node's new value is its original value plus every original tree value strictly greater than it. R...

Coding & AlgorithmsTrees
0
0
10 people solved
Microsoft logo
MicrosoftMetaGoogle

Also asked at Google, Amazon, Bloomberg

Easy
Software Engineer

Detect an Odd Run of Length Three

Problem Given arr, decide whether some contiguous group of three entries contains only odd integers. Return a Boolean result; the odd values need not ...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
Databricks logo
Databricks
Hard
Software Engineer Locked

Design Snapshot Set Iteration and Clarify Durable Writes

Design a mutable set whose iterators preserve an exact, deterministic creation-time snapshot, then frame the missing requirements for a separate durab...

Software Engineering FundamentalsData Structure DesignSystem Design Fundamentals
34
0
340 people solved
Jul 26, 2026
Salesforce logo
Salesforce
Medium
Software EngineerSenior+ Locked

Diameter of an Undirected Tree

Compute the number of edges in the longest simple path of a large undirected tree in linear time.

Coding & Algorithms
2
0
55 people solved
Aug 12, 2026
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Deep-Dive Two Projects Through Technical Decisions

Compare two projects through their hardest technical decisions, showing ownership, implementation detail, trade-offs, validation, lessons, and the dif...

Behavioral & Leadership
5
0
66 people solved
Aug 11, 2026
Figma logo
Figma
Medium
Data Scientist Locked

Clarify an Ambiguous Product Question and Define a Metric

Learn how to turn an ambiguous product question into a decision-ready data science metric framework. Define the target population, unit of analysis, t...

Analytics & Experimentation
4
0
65 people solved
Jul 14, 2026
Pinterest logo
Pinterest
Medium
Product Manager

Five-Year Roadmap to Grow Pinterest Revenue Threefold

You have joined Pinterest as a product manager with one mandate: make the company's revenue three times larger within five years. Present the monetiza...

Product Design & StrategyGrowth & MonetizationRoadmapping & Planning
1
0
13 people solved
Sep 1, 2026
Kikoff logo
Kikoff
Easy
Software Engineer Locked

Build a Robust Log Parser and Prefix-Operator Search

Design a tool that parses a list of server-log strings into structured records with timestamp, level, service, message, and optional user identifier. ...

Software Engineering Fundamentals
9
0
92 people solved
Jul 31, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Design an Asynchronous Text-to-Video Generation Service

Design an asynchronous text-to-video service with observable job progress, cancellation, retries, artifact storage, and cost controls, while comparing...

System Design
15
0
153 people solved
Aug 13, 2026
Google logo
Google
Medium
Software EngineerSenior+

Shared Distributed In-Memory Cache With Rebalancing and Failover

Design a distributed in-memory cache that many backend services share to take read load off their databases. Clients store a value under a key with an...

System DesignCachingPartitioning & Consistent Hashing
2
0
40 people solved
Mar 27, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Improve an ML Inference Service

Improve an ML inference service with cost-aware admission, dynamic batching, load shedding, scoped caching, and exact idempotency semantics.

ML System Design
13
0
190 people solved
Aug 12, 2026
Mastercard logo
MastercardInMobiIntuit

Also asked at Intuit, Amazon, Salesforce, Google, Bloomberg, NetEase

Hard
Software Engineer

Minimize Overwriting Turns of a Single-Character Printer

Problem A printer turn chooses one contiguous interval and writes the same chosen character throughout it, overwriting any existing characters. Return...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
13 people solved
Two Sigma logo
Two Sigma
Medium
Software Engineer Locked

Implement Price-Time Order Matching

This question evaluates understanding of limit-order book mechanics, priority-based matching, stateful stream processing, and data-structure managemen...

Coding & Algorithms
25
0
175 people solved
May 9, 2026
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