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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
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Implement and Analyze an LRU Query Cache

Problem Implement a fixed-capacity least-recently-used cache for database query results. A successful get and every put make the key most recently use...

Coding & Algorithms
1
0
33 people solved
Mar 12, 2026
Point72 logo
Point72
Hard
Data Engineer

Implement Election Report and Banking Pipeline

You are given two independent data engineering coding tasks. Task 1: SQL Election Exit Poll by State Report An election analytics team needs a report ...

Coding & Algorithms
7
0
115 people solved
Apr 21, 2026
OpenAI logo
OpenAI
Hard
Data Scientist Locked

Assess free-month promotion impact

This question evaluates a data scientist's competency in experimental design, causal inference, metric definition and prioritization, bias identificat...

Analytics & ExperimentationCausal InferenceMetrics & KPIs
18
0
275 people solved
Jan 22, 2026
Waymo logo
Waymo
Medium
Software Engineer

Find Largest Adjacent Sorted Difference

Given an unsorted array of integers nums, compute the largest difference between two consecutive elements after the array is sorted in ascending order...

Coding & AlgorithmsSortingArrays & Strings
19
1
134 people solved
Apr 12, 2026
Meta logo
Meta
Medium
Software Engineer Locked

Sum Numbers Formed by Root-to-Leaf Paths

Sum all numbers formed by root-to-leaf digit paths in a binary tree represented as a heap array. Carry each decimal prefix through the traversal, add ...

Coding & AlgorithmsTrees
5
0
94 people solved
Aug 8, 2026
Riotgames logo
Riotgames
Easy
Software Engineer Locked

Explain JavaScript Numeric Edge Cases

Explain JavaScript numeric classification and parsing behavior, including integer checks, NaN, and Infinity edge cases.

Software Engineering Fundamentals
1
0
15 people solved
Aug 26, 2026
Meta logo
Meta
Medium
Software Engineer

Solve grid path and robot navigation

Part A — Shortest path in a grid with obstacles: Given an m×n grid of 0/1 cells (0 = open, 1 = obstacle), start at (0, 0) and end at (m−1,n− 1). You m...

Coding & Algorithms
14
0
102 people solved
Sep 6, 2025
Sentry.Io logo
Sentry.Io
Medium
Software Engineer Locked

Design a Book Purchase Broker

Design a system for brokering book purchase requests across partner bookstores with target price constraints and expiration windows. The question eval...

System Design
1
0
21 people solved
Jun 12, 2026
Coinbase logo
Coinbase
Medium
Software Engineer Locked

Decide When Automated Tests Are Necessary

Explain a testing philosophy that distinguishes mandatory automation from justified lighter testing and evaluates meaningful behavioral coverage beyon...

Behavioral & Leadership
3
0
25 people solved
May 12, 2026
Rippling logo
Rippling
Medium
Software Engineer

Design delivery driver payment system

Design a delivery-driver payment system Design and implement an in-memory, object-oriented service that tracks delivery-driver work and computes payro...

System DesignLow-Level Design (OOP)Payments & Ledgers
128
1
1753 people solved
Jul 29, 2025
eBay logo
eBay
Medium
Software Engineer

Resolving a Technical Conflict with a Colleague

Resolving a Technical Conflict with a Colleague Tell me about a meaningful technical conflict with a colleague. Explain what each person disagreed abo...

Behavioral & Leadership
1
0
20 people solved
Aug 19, 2026
Stripe logo
Stripe
Medium
Software Engineer

Answer hiring manager behavioral questions

Hiring manager round: behavioral questions Prepare structured answers to the following questions (with likely follow-ups). Use concrete examples from ...

Behavioral & LeadershipMotivation & FitProject Deep Dive
33
0
235 people solved
Jan 22, 2026
Wells Fargo logo
Wells Fargo
Medium
Software EngineerSenior+

Design Cursor Pagination for a Large Dataset

Design Cursor Pagination for a Large Dataset API Design an API that reads a very large database-backed dataset for a user interface. Compare offset pa...

System Design
1
0
12 people solved
Aug 19, 2026
Upstart logo
Upstart
Medium
Software EngineerSenior+ Locked

Find Maximum Eastbound City Visits and Parse CSV

The first problem evaluates algorithmic reasoning about ordering constraints and subsequence selection, testing skills in sequence algorithms, multidi...

Coding & Algorithms
7
0
66 people solved
May 30, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Compute a Global Mode Across Distributed Partitions

Compute the mode of data partitioned across several workers using supplied send/receive-style communication primitives. Explain the protocol and how y...

Software Engineering FundamentalsBatch & Stream ProcessingPartitioning & Consistent Hashing
2
0
24 people solved
Mar 30, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Design an AI playground editor

This question evaluates full-stack system design competencies including real-time response streaming, rich-text editor data modeling, backend APIs, pe...

System DesignSystem Design FundamentalsLLM Applications
29
0
331 people solved
Apr 2, 2026
Meta logo
Meta
Medium
Data Scientist Locked

Evaluate a Live-Stream Group Notification Under Network Effects

Design an evaluation for live-stream group notifications that measures product impact beyond clicks. Define an intent-to-treat effect, address network...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
29
1
233 people solved
Jul 6, 2026
Jane Street logo
Jane Street
Easy
Software Engineer

Answer why Jane Street

HR Screen Behavioral Question: Why Jane Street? You are interviewing for a Software Engineer role. In 60–90 seconds, explain: 1. Why Jane Street speci...

Behavioral & LeadershipMotivation & Fit
69
0
476 people solved
Sep 6, 2025
Affirm logo
Affirm
Medium
Software Engineer Locked

Explain Why This Company and Role Interest You

Build a specific, concise answer for why a company and software engineering role interest you. Connect verified details about the opportunity to relev...

Behavioral & Leadership
7
0
52 people solved
Jul 6, 2026
Moveworks logo
Moveworks
Medium
Software Engineer

Compute Jaccard similarity between two strings

Jaccard Similarity of Two Strings Given two strings a and b, compute their Jaccard similarity based on token sets. Tokenization rules - Convert to low...

Coding & AlgorithmsArrays & Strings
17
0
257 people solved
Dec 15, 2025
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