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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
Crowdstrike logo
Crowdstrike
Medium
Backend EngineerSenior+

Implement a Risk-Score Priority DetectionStore With Put and GetNext in C++

Design and implement a data structure, DetectionStore, that stores security detections and hands them out by priority. A Detection has three fields: u...

Software Engineering FundamentalsData Structure DesignHeaps & Priority Queues
0
0
2 people solved
Sep 25, 2026
Stripe logo
Stripe
Medium
Software Engineer Locked

Validate KYC CSV Records

This question evaluates skills in CSV parsing, string normalization, field-level validation, and rule-based text matching, emphasizing attention to ed...

Coding & Algorithms
8
0
166 people solved
Jan 31, 2026
Lyft logo
Lyft
Medium
Software Engineer

Assign Tasks to the Minimum Number of Workers

Assign Tasks to the Minimum Number of Workers Problem Implement assignMinimumWorkers(tasks) -> workerIds. Each task is [startMinute, durationMinutes]....

Coding & Algorithms
12
0
105 people solved
May 1, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Implement Event Filtering and Queue Routing

This question evaluates parsing and evaluation of domain-specific filter expressions, JSON traversal and type-aware comparisons, boolean logic handlin...

Coding & Algorithms
5
0
57 people solved
May 30, 2026
Coreweave logo
Coreweave
Medium
Software Engineer

Build an OAuth-based data migration client

Prompt Build a small command-line program that migrates records from a legacy HTTP API to a new HTTP API. Required steps 1. Obtain an access token usi...

Software Engineering FundamentalsAPI Integration & HTTP ClientsAuthentication & Authorization
60
0
620 people solved
Oct 31, 2025
Figma logo
Figma
Medium
Software Engineer

Design an Async Job Scheduler

Design an asynchronous job scheduler service. The service must support two job types: 1. Immediate jobs: submitted jobs that should run as soon as pos...

System DesignJob Scheduling & WorkflowsFault Tolerance & Failover
50
1
379 people solved
Jan 10, 2026
Google logo
Google
Medium
Software EngineerNew Grad

Count Good Numbers up to a Limit

Count Good Numbers up to a Limit A positive integer is good when all of the following hold: 1. Its decimal representation contains no digit 0. 2. No d...

Coding & Algorithms
12
1
83 people solved
Apr 26, 2026
Upstart logo
Upstart
Medium
Software Engineer

Implement Three Assessment Functions

An online assessment contains three independent programming tasks. Implement each function clearly and efficiently. 1. Compute coordinate bounds - ...

Coding & Algorithms
7
0
64 people solved
Apr 20, 2026
Google logo
Google
Medium
Software Engineer Locked

Solve Rooms and Top-K Streams

This question evaluates algorithmic problem-solving skills across interval scheduling/resource allocation and streaming top-k maintenance, testing com...

Coding & Algorithms
11
0
104 people solved
Jun 5, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Design a batch inference API

Design an Asynchronous (POST-and-Poll) Inference Service API Design an asynchronous inference service for serving model predictions. A client submits ...

ML System DesignSystem Design FundamentalsAPI Design
84
0
1268 people solved
Sep 6, 2025
Stripe logo
Stripe
Medium
Software Engineer Locked

Find linked merchants by shared fields

This question evaluates the ability to model and detect entity linkages via exact field matching and weighted scoring as well as to reason about reach...

Coding & Algorithms
9
0
121 people solved
Jan 6, 2026
Rippling logo
Rippling
Easy
Software EngineerIntern

Clarify and Find Common Ancestors in a Graph

Explain how you would find common ancestors in a graph. Begin by clarifying the edge direction, graph structure, queried vertices, and whether the res...

Software Engineering FundamentalsGraphs
5
0
56 people solved
Dec 12, 2025
Optiver logo
Optiver
Medium
Software EngineerIntern

Optiver SWE Intern HR Screen: Project Deep Dive — Hardest Parts, What You'd Do Differently, and Questions to Ask

You are on a 20–30 minute recruiter (HR) phone screen for a Software Engineering Intern position at Optiver, a high-frequency trading firm. The call s...

Behavioral & LeadershipProject Deep DiveCommunication & Stakeholders
40
0
345 people solved
Jul 22, 2025
Attentive logo
Attentive
Medium
Software Engineer

Find Inclusive Index Ranges for Time-Window Queries on Timestamp-Sorted Logs

A service stores the timestamps of its log entries in an array sorted in non-decreasing order, so entry i has timestamp timestamps[i]. The same log is...

Coding & AlgorithmsBinary Search
0
0
6 people solved
Sep 7, 2026
Amazon logo
Amazon
Medium
Software Engineer

Show Initiative, Improve Processes, and Demonstrate Impact

Explain how you have taken initiative and created value at work. Use true examples, or explicitly label practice examples as fictional. You may reuse ...

Behavioral & LeadershipOwnership & ExecutionLeadership & Influence
1
0
14 people solved
Sep 7, 2026
Airbnb logo
Airbnb
Medium
Machine Learning EngineerSenior+

Design User Embedding Semantic Search

Design a user-embedding-based two-stage semantic retrieval and ranking system for a short-term rental marketplace. The goal is to retrieve and rank pr...

ML System Design
16
0
106 people solved
Apr 28, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+ Locked

Design a Metrics Ingestion Pipeline

This question evaluates a candidate's ability to design a large-scale distributed system for ingesting time-series metrics at high throughput. It test...

System DesignObservabilityDistributed Transactions & Idempotency
12
0
102 people solved
Jun 11, 2026
Temu logo
Temu
Easy
Data EngineerSenior+ Locked

Compute User Login Streaks

This question evaluates SQL proficiency in processing event logs for time-series analysis, encompassing date arithmetic, deduplication of same-day eve...

Coding & AlgorithmsSQL
15
0
122 people solved
Apr 3, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Design a Secure Copilot API

Design a secure API for an enterprise AI copilot product. The product serves many independent organizations (tenants). Authenticated end users send pr...

System DesignAuthentication & AuthorizationApplication Security
23
0
381 people solved
Apr 6, 2026
Two Sigma logo
Two Sigma
Hard
Software Engineer

Implement binary encode/decode with frequency tree

Problem Implement a binary encoding and decoding scheme for strings based on character frequencies (Huffman-like coding). You must implement two funct...

Coding & AlgorithmsHeaps & Priority QueuesTrees
15
0
212 people solved
Dec 15, 2025
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