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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.0k
Companies
570
Updated
09.07.2026
12.0k Questions 570 Companies09.07.2026
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
Rippling logo
Rippling
Hard
Software Engineer

Explain the Scope and Impact of Your Most Important Project

What is the most impactful project you have worked on? Explain its scope, your responsibilities, whether the work was collaborative or largely indepen...

Behavioral & LeadershipProject Deep Dive
1
0
13 people solved
Sep 13, 2026
Waymo logo
Waymo
Medium
Software Engineer

Describe a Complex Project You Worked On and Why It Was Challenging

In a hiring-manager round, the core behavioral question is: "Tell me about a complex project you worked on. Why was it challenging?" A closely related...

Behavioral & LeadershipProject Deep Dive
1
0
15 people solved
Sep 10, 2026
AMD logo
AMD
Medium
Software Engineer

Explain the ReAct Agent Loop

Explain the ReAct architecture for a tool-using agent. Describe how reasoning, actions, and observations interact and how the loop decides to continue...

Machine LearningAI AgentsPrompt Engineering
0
0
13 people solved
Sep 14, 2026
Salesforce logo
Salesforce
Medium
Software Engineer

Design a coffee ordering system

System Design: Coffee Ordering System Design a system for a coffee shop (and later a chain of stores) that lets customers order drinks for pickup or i...

System DesignSystem Design FundamentalsDistributed Transactions & Idempotency
824
4
7649 people solved
Jan 22, 2026
Bnsf logo
Bnsf
Medium
Software Engineer Locked

Minimize Car Removals for a Two-Car Bridge

Remove the fewest cars from a fixed-order queue so a two-car one-way bridge never exceeds its weight limit. Every retained car must fit alone, every a...

Coding & Algorithms
8
0
74 people solved
Aug 5, 2026
Google logo
Google
Medium
Software EngineerSenior+

Describe a Great Tech Leader You Have Seen and How You Measure Growth Toward That

Describe a great tech leader you have seen. Do you want to become a leader like them? How do you measure your progress toward becoming that kind of le...

Behavioral & LeadershipLeadership & Influence
1
0
12 people solved
Sep 8, 2026
Okta logo
Okta
Medium
Backend EngineerSenior+

Build and Review a Configurable Node.js Token-Bucket Rate Limiter

Build a Node.js Express application that reads a configuration file and exposes an API governed by a token-bucket rate limiter. Then explain the imple...

Software Engineering FundamentalsRate LimitingCode Quality & Maintainability
0
0
3 people solved
Oct 5, 2026
Moveworks logo
Moveworks
Medium
Software Engineer

Design a Phrase Search Service over Restaurant Reviews

Design a system that lets users search a large, growing collection of restaurant reviews by text. A query consists of one or more search strings, such...

System DesignSearch & Feed SystemsPartitioning & Consistent Hashing
0
0
5 people solved
Sep 15, 2026
Rippling logo
Rippling
Medium
Software Engineer Locked

Design a Data-Driven Expense Rule Evaluator

Design an expense-policy evaluator whose rules are stored as validated JSON so policies can be added or changed without deploying code. Make the API o...

Software Engineering FundamentalsParsing & Interpreters
25
0
216 people solved
Jul 27, 2026
Otter.Ai logo
Otter.Ai
Easy
Software Engineer

Extend a Key-Value Store with Commits and Explicit Rollover Semantics

Design a key-value store with set, get, and delete, then extend it with version-control-style commit and rollover operations. Explain the API, state r...

System DesignKey-Value StoresData Structure Design
1
0
14 people solved
Aug 29, 2026
Snapchat logo
Snapchat
Medium
Software Engineer

Design a Pre-Login Risk and Challenge Service

Design a system that uses information available before a user logs in to decide which challenges the user must complete. CAPTCHA is one possible chall...

System DesignApplication SecurityAPI Design
5
0
44 people solved
Aug 22, 2026
Purestorage logo
Purestorage
Medium
Software Engineer Locked

Fix Thread-Safe Trigger Synchronization

This question evaluates understanding of multithreaded synchronization, concurrency primitives, and memory-model correctness required to implement a o...

Software Engineering FundamentalsConcurrencyProgramming Languages
37
0
306 people solved
May 21, 2026
Anthropic logo
Anthropic
Hard
Software Engineer Locked

Build a Progressive Employee Tracker

Build an employee attendance and payroll tracker with shifts, time rankings, scheduled promotions, and double-pay windows. Preserve role and rate snap...

Coding & AlgorithmsSimulation & State MachinesData Structure Design
20
0
197 people solved
Jul 8, 2026
Attentive logo
Attentive
Medium
Software Engineer

Evaluate a Lisp-Style Prefix Expression Language With ADD, MULT and LET Variables

Implement parse(expression), which evaluates an expression in a small Lisp-style language and returns its integer value. Despite its name, the functio...

Software Engineering FundamentalsParsing & InterpretersStacks & Queues
0
0
7 people solved
Sep 24, 2026
Nuro logo
Nuro
Medium
Software Engineer

Pick Two Trees for a Zipline That Maximizes Height Times Span

Trees stand in a straight row, one unit apart: tree i is at position i and has height heights[i]. You will install one zipline between two different t...

Coding & AlgorithmsTwo Pointers & Sliding Window
1
0
12 people solved
Aug 21, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Explain AI Safety and Weigh Advanced AI Benefits and Risks

Explain what AI safety means to you, what can happen when AI is used improperly, and what you consider the largest potential benefits and risks of adv...

Behavioral & LeadershipEthics & ResponsibilityAI Safety & Alignment
2
0
39 people solved
Aug 19, 2026
Stripe logo
Stripe
Hard
Software EngineerSenior+

Design a Feature Flag Service with Percentage Rollouts and Allow/Block Lists

Design a feature flag service, similar in spirit to Amazon's Weblab, for a company that runs many backend services. Engineers create and edit flags in...

System DesignCI/CD & DeploymentCaching
1
0
13 people solved
Aug 30, 2026
Netflix logo
Netflix
Medium
Software Engineer Locked

Simulate a TTL Cache with LRU Eviction

Simulate a fixed-capacity cache that combines per-key TTL expiration with LRU eviction. Process timestamped operations deterministically, distinguish ...

Coding & Algorithms
9
0
97 people solved
Jul 11, 2026
Amazon logo
Amazon
Hard
Software Engineer Locked

Maximize Money in K Consecutive Bags

Practice an interval-window problem that asks for the richest run of k consecutive weighted bags on a sparse infinite line.

Coding & Algorithms
15
1
129 people solved
Jun 1, 2026
Qualified Health logo
Qualified Health
Hard
Software Engineer

Stream LLM Output While Committing Reliable DAG Results

A workflow runs an LLM task whose output must appear incrementally in an interactive client. Downstream DAG nodes, however, require the complete struc...

System DesignReal-Time SystemsJob Scheduling & Workflows
0
0
5 people solved
Sep 30, 2026
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