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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
IBM logo
IBM
Hard
Software Engineer

Count Servers With No Requests in Each Query's Time Window

A system has n servers with ids 1 through n. You are given a request log in which each entry [server_id, time] records that server server_id received ...

Coding & AlgorithmsTwo Pointers & Sliding WindowSorting
2
0
16 people solved
Oct 25, 2026
Legora logo
Legora
Medium
Software EngineerSenior+

Senior engineer project deep dive: trade-offs, scale, challenges, hardest part

You are interviewing for a senior software engineer role. The technical screen lasts 45 minutes with an engineer from the team, and the first 20 minut...

Behavioral & LeadershipProject Deep Dive
8
0
106 people solved
Oct 4, 2026
Fireworks logo
Fireworks
Medium
Software Engineer

Detect Security Attacks in Text Logs Using Sliding-Window Rules

You are given a large collection of text-format log lines describing network connections, and a set of rules that define security attacks. Write a pro...

Software Engineering FundamentalsTwo Pointers & Sliding WindowTesting & Quality
10
2
126 people solved
Oct 10, 2026
Walmart Labs logo
Walmart Labs
Easy
Software Engineer

Merge Overlapping Time Intervals Given as Parallel Start and End Lists

You receive time intervals as two lists of equal length: starts[i] and ends[i] are the start time and end time of interval i, and the intervals are in...

Coding & AlgorithmsIntervals & Scheduling
2
0
16 people solved
Nov 6, 2026
Scale AI logo
Scale AI
Medium
Software Engineer

Design and Simulate a Four-Player Card Game

Design and Simulate a Four-Player Card Game Design a stateful card-game program using Card, Deck, and Player abstractions. The exercise grows in three...

Software Engineering Fundamentals
78
1
666 people solved
Aug 26, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Corporation Class: Set Teams and Managers, Check Reporting Lines

Implement a Corporation class with three methods: set_team, set_manager and check_reporting_line. The report names only the class and its three method...

Software Engineering FundamentalsData Structure DesignGraphs
3
1
25 people solved
Oct 18, 2026
Harvey logo
Harvey
Medium
Software Engineer

Build an In-Memory Filesystem Class with Directories, Listing and File Contents

In an AI-assisted coding round, where you may use an AI coding assistant, implement an in-memory file system. The report names only the feature, so th...

Software Engineering FundamentalsTreesAI-Assisted Development
0
0
11 people solved
Nov 4, 2026
Capital One logo
Capital One
Medium
Software EngineerSenior+

Design an Enterprise Agent Platform with Guardrails and Latency Control

Design an enterprise agent platform. Explain the platform's execution architecture, how you choose between an agent and a predefined workflow, where g...

System DesignAI AgentsAI Safety & Alignment
13
0
154 people solved
Sep 9, 2026
Anthropic logo
Anthropic
Medium
Product Manager

Choosing Which Model Capabilities to Improve Next in Claude Sonnet

You are a product manager at Anthropic responsible for Claude Sonnet, the middle tier of the Claude model family, between the smaller Haiku and the la...

Product Design & StrategyAI Product ManagementLLM Evaluation
4
0
61 people solved
Oct 11, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Spreadsheet engine with setCell/getCell, cell references, and cycle detection

Implement a spreadsheet engine with two operations: - set_cell(cell, content) stores the content of a cell (setCell in camelCase languages). A cell is...

Software Engineering FundamentalsGraphsData Structure Design
64
2
588 people solved
Sep 28, 2026
Stripe logo
Stripe
Medium
Software Engineer

Payout Scheduler: Fixed Intervals, Per-Merchant Schedules and Hold Periods

You are building the payout calculation for a payments platform. Merchants accept transactions, and the platform periodically pays the accumulated mon...

Software Engineering FundamentalsMath & Number Theory
2
0
22 people solved
Oct 25, 2026
Affirm logo
Affirm
Medium
Software Engineer

Hiring Manager Behavioral Interview: Challenging Project, Deadlines, Cross-Team Work

In a hiring-manager interview, the conversation runs through a series of behavioral and experience questions. You are asked to introduce yourself and ...

Behavioral & LeadershipProject Deep DiveConflict & Collaboration
20
0
144 people solved
Sep 30, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+

Implement a Fixed-Capacity Ring Buffer in C for Firmware

Implement a fixed-capacity ring buffer (circular buffer) in C. Its storage is set up once, and the write and read positions wrap back to the start of ...

Software Engineering FundamentalsData Structure DesignConcurrency
1
0
17 people solved
Oct 31, 2026
Coinbase logo
Coinbase
Medium
Software Engineer

Push Back on a Technical Decision under Time Pressure

Tell me about a time you opposed a technical decision while the team was under time pressure. Explain the risk, how you communicated it, and what happ...

Behavioral & LeadershipConflict & CollaborationAmbiguity & Decision Making
1
0
25 people solved
Oct 26, 2026
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Microsoft, Meta, LinkedIn, TCS, eBay, Goldman Sachs, Infosys, Adobe, Oracle, Walmart Labs, EPAM Systems, Cisco

Medium
Software Engineer

Evaluate a Floating Base to an Integer Power

Problem Implement myPow(x,n) to return the floating-point value of x raised to the integer exponent n. A negative exponent denotes the reciprocal powe...

Coding & AlgorithmsMath & Number Theory
4
1
36 people solved
Confluent logo
Confluent
Easy
Software EngineerNew Grad

Count Length-k Windows That Are Strictly Increasing

Given an integer array nums and an integer k, count the contiguous windows of exactly k elements whose values are strictly increasing from left to rig...

Coding & AlgorithmsTwo Pointers & Sliding Window
0
0
13 people solved
Nov 5, 2026
Oracle logo
Oracle
Medium
Software Engineer

Shortest Subarray Whose Distinct-Value Sum Reaches a Target

Given an array of positive integers nums and a positive integer target, return the length of the shortest contiguous subarray whose distinct sum is at...

Coding & AlgorithmsTwo Pointers & Sliding Window
8
1
72 people solved
Oct 15, 2026
Microsoft logo
MicrosoftAmazonNVIDIA

Also asked at NVIDIA, Google, Zopsmart, Meta, Oracle, Arista Networks, TikTok, Adobe, Bloomberg, Visa, Palo Alto Networks, ByteDance, Zoho

Medium
Software Engineer

Restore Dotted Addresses from an Unchanged Digit Sequence

Problem Insert three dots into the digit string s to form all possible valid IPv4 addresses. Each address has exactly four decimal components, each fr...

Coding & AlgorithmsBacktracking & RecursionParsing & Interpreters
5
1
43 people solved
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Fix a Buggy LRU Cache, Then Make It Durable with a Write-Ahead Log

Debug a flawed least-recently-used cache by finding each bug with a reproducing call sequence and fixing it, then make the cache durable across crashe...

Software Engineering FundamentalsData Structure DesignDebugging
37
1
270 people solved
Sep 18, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Fault-Tolerant Task Queue with Retry Cooldowns, a Dead-Letter Queue and Dependencies

Implement an in-memory task queue that tolerates worker failures. Workers take tasks from the queue; when a worker fails or is preempted while holding...

Software Engineering FundamentalsData Structure DesignGraphs
14
0
169 people solved
Oct 9, 2026
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