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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.1k
Companies
579
Updated
10.10.2026
12.1k Questions 579 Companies10.10.2026
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
Databricks logo
Databricks
Medium
Software Engineer

Solve graph path, interval deletion, and robbery

Solve graph path, interval deletion, and robbery Part A — Optimal path with transport modes: You are given a directed weighted graph of a city. Each e...

Coding & AlgorithmsGraphsDynamic Programming
25
0
384 people solved
Aug 9, 2025
Pinduoduo logo
Pinduoduo
Medium
Software Engineer

Longest Single-Letter Substring After at Most k Character Changes

You are given a string s of uppercase English letters and an integer k. You may perform at most k operations; each operation changes one character of ...

Coding & AlgorithmsTwo Pointers & Sliding Window
0
0
8 people solved
Jul 17, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Design a packet reassembler API

Design a PacketAssembler API for Streaming Fragments Context and Assumptions - You are building a small component that assembles packets from a byte s...

System DesignData Structure Design
19
1
216 people solved
Sep 6, 2025
Mercor logo
Mercor
Medium
Software Engineer

Explain Kubernetes autoscaling and traffic routing

In Kubernetes: 1) How does autoscaling work (pod and node scaling)? 2) How is traffic routed from outside the cluster to the right Pods? 3) What are t...

System DesignContainers & OrchestrationNetworking
12
0
215 people solved
Jan 17, 2026
Capital One logo
Capital One
Medium
Software EngineerNew Grad

Answer motivation and teamwork questions

You are in a behavioral interview for an entry-level software role. Answer the following prompts: 1. Why did you choose to study Computer Science? 2. ...

Behavioral & LeadershipMotivation & FitConflict & Collaboration
18
0
148 people solved
Jan 22, 2026
Axon logo
Axon
Medium
Software Engineer

Answer tough self-awareness and team questions

In a director-level behavioral interview, answer the following questions clearly and professionally: 1. What is something people have misunderstood ab...

Behavioral & LeadershipConflict & Collaboration
25
0
215 people solved
Feb 8, 2026
Meta logo
Meta
Medium
Backend Engineer Locked

Design an Instagram-like platform

This question evaluates proficiency in scalable backend architecture, distributed systems, data modeling, media storage and processing, API design, fe...

System Design
7
0
87 people solved
Apr 8, 2026
Crowdstrike logo
Crowdstrike
Medium
Software Engineer

Design scalable worker pool for template jobs

You have implemented a function that takes a template string (or many template strings) and replaces placeholders like {{db_host}} and {{db_port}} usi...

System DesignJob Scheduling & WorkflowsMessaging & Event-Driven
13
0
213 people solved
Oct 5, 2025
OpenAI logo
OpenAI
Hard
Machine Learning Engineer

Design an ML search system

Design an ML‑Powered Enterprise Document Search System Context You are designing a multi‑tenant enterprise search system that indexes documents from m...

ML System DesignSearch RelevanceEmbeddings & Vector Search
15
0
202 people solved
Sep 6, 2025
Akuna Capital logo
Akuna Capital
Medium
Software Engineer

Implement a ring buffer

Implement a fixed-capacity circular buffer (ring buffer) supporting push, pop, peek, isEmpty, isFull, and size in O( 1) time using an array. Define an...

Coding & AlgorithmsData Structure DesignConcurrency
23
0
203 people solved
Sep 6, 2025
Snowflake logo
Snowflake
Medium
Software Engineer Locked

Solve Matrix and Array Distance Problems

This question evaluates competency in graph traversal and shortest-path reasoning for grid-based problems as well as array-based distance computation ...

Coding & Algorithms
5
0
60 people solved
May 23, 2026
Shopify logo
Shopify
Medium
Machine Learning Engineer

Model Product Ranking

You are building a machine learning model for product ranking in an e-commerce marketplace. Given a user, context, and a set of candidate products, ra...

Machine LearningRanking ModelsML System Design
8
0
155 people solved
Apr 1, 2026
Chime logo
Chime
Medium
Software Engineer

Compute minimum time with task cooldowns

You are given a multiset of task types represented by uppercase letters (e.g., A, A, A, B, B, C). Each task takes exactly 1 time unit to execute. Runn...

Coding & AlgorithmsGreedy
41
0
351 people solved
Aug 7, 2025
Anthropic logo
Anthropic
Hard
Software Engineer

Implement a thread-safe producer–consumer buffer

Implement a thread-safe producer–consumer buffer Bounded Blocking Buffer with Shutdown and Timeouts You are asked to design and implement a thread-saf...

System DesignConcurrencyData Structure Design
55
0
475 people solved
Jul 31, 2025
Affirm logo
Affirm
Medium
Software Engineer Locked

Describe Feedback from a Manager and How You Acted on It

Craft a behavioral answer about meaningful feedback from a manager and the change it prompted. Show an honest initial reaction, concrete follow-throug...

Behavioral & Leadership
8
0
74 people solved
Jul 6, 2026
Meta logo
Meta
Medium
Software Engineer Locked

Palindrome After Deleting at Most One Character

This question evaluates a candidate's ability to reason about two-pointer string traversal and palindrome verification under a single edit constraint....

Coding & Algorithms
2
0
36 people solved
Jun 20, 2026
LinkedIn logo
LinkedIn
Medium
Software EngineerSenior+

Scale a Distributed Randomized Multiset

After designing the randomized multiset on a single machine, explain how you would scale it across multiple servers. The distributed system should sup...

System DesignPartitioning & Consistent Hashing
27
0
206 people solved
Apr 2, 2026
Nuro logo
Nuro
Medium
Software Engineer Locked

Design fast search for AV raw logs

This question evaluates a candidate's ability to design scalable logging and search infrastructure for autonomous-vehicle telemetry, testing skills in...

System DesignSearch & Feed SystemsStorage & Sharding
16
0
239 people solved
Feb 11, 2026
Atlassian logo
Atlassian
Hard
Machine Learning Engineer Locked

Design an ML-powered search system

This question evaluates a candidate's ability to design end-to-end ML-powered search systems, testing competencies in information retrieval, ranking, ...

ML System DesignSearch RelevanceRanking Models
19
0
125 people solved
Mar 1, 2026
Capital One logo
Capital One
Easy
Data Scientist

Differentiate fixed and variable costs with examples

Unit Economics: Fixed vs. Variable Costs in a Subscription Streaming Business Task - Define fixed cost vs. variable cost for a subscription streaming ...

Statistics & Math
11
0
107 people solved
Oct 13, 2025
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