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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
Apple logo
Apple
Medium
Software EngineerIntern

Describe your most memorable bug and fix

Tell me about the most memorable/impactful bug you encountered in a project. Include: - What the system/project was and your role - How the bug manife...

Behavioral & LeadershipDebuggingFailure & Learning
10
0
130 people solved
Feb 9, 2026
Instacart logo
Instacart
Medium
Data Scientist

Calculate Weekly Revenue and Order Count for Standard Deliveries

instacart_orders +----------+---------+---------+------------+---------+--------------+ | order_id | user_id | revenue | created_at | geo | delive...

Data Manipulation (SQL/Python)
58
0
37 people solved
Jul 12, 2025
Amazon logo
Amazon
Medium
Software Engineer

Compute peak parking lot occupancy intervals

You are given logs from a parking lot system. Each log entry has the form: [carId, time, eventType] - carId is an integer identifying a car. - time is...

Coding & AlgorithmsIntervals & SchedulingSorting
7
0
129 people solved
Dec 2, 2025
Instacart logo
Instacart
Medium
Software Engineer

Evaluate arithmetic expression using DFS

Given a string representing an arithmetic expression with non-negative integers, +, -, *, /, parentheses, and optional spaces, evaluate its value. Use...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
7
0
107 people solved
Jul 31, 2025
Apple logo
Apple
Medium
Software Engineer

Explain Python lists, dicts, and concurrency

Explain Python lists, dicts, and concurrency Explain the differences between Python lists and dictionaries (maps), including common operations and the...

Data Manipulation (SQL/Python)Programming LanguagesConcurrency
11
0
127 people solved
Jul 15, 2025
Discord logo
Discord
Hard
Software Engineer Locked

Explain your database experience and debugging approach

This question evaluates a candidate's practical database engineering knowledge, concurrency debugging skills, and ability to integrate and verify AI-a...

Software Engineering FundamentalsConcurrencyAI-Assisted Development
19
0
154 people solved
Feb 4, 2026
PayPal logo
PayPal
Medium
Data Scientist

Clean and Analyze User Transactions with Python Functions

transactions +---------+---------------------+---------+ | user_id | trans_ts | amount | +---------+---------------------+---------+ | 11 ...

Data Manipulation (SQL/Python)
106
0
445 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Software Engineer Locked

Implement cd and merge intervals

This question evaluates proficiency in filesystem path normalization (string parsing, tokenization, and edge-case handling) and interval-merging algor...

Coding & Algorithms
4
0
70 people solved
Jan 16, 2026
Nuro logo
Nuro
Easy
Software Engineer Locked

Parse logs and count error codes

This question evaluates parsing and sanitizing structured text, extracting specific fields, and performing frequency aggregation of identifiers such a...

Coding & AlgorithmsParsing & Interpreters
6
0
103 people solved
Feb 12, 2026
Pinterest logo
Pinterest
Medium
Data Scientist

Analyze Global Engagement and Impressions with SQL Queries

impressions +---------+---------+----------+----------------+ | user_id | country | category | impression_cnt | +---------+---------+----------+------...

Data Manipulation (SQL/Python)
49
0
39 people solved
Jul 12, 2025
Meta logo
Meta
Hard
Software Engineer AI

Solve Two Backtracking Array Problems

You will solve two independent coding problems. For each problem, first discuss edge cases, then implement a correct solution, and finally explain how...

Coding & AlgorithmsBacktracking & RecursionTwo Pointers & Sliding Window
40
0
323 people solved
Apr 27, 2026
Natwest logo
Natwest
Easy
Product ManagerIntern

Answer NatWest behavioral prompts

At a NatWest online interview for an internship program, candidates were asked several behavioral questions. Prepare structured answers to the followi...

Behavioral & Leadership
10
0
105 people solved
Nov 11, 2024
Apple logo
Apple
Medium
Machine Learning Engineer

Design CI/CD for AI Services

Design a CI/CD platform for a large AI product organization. The platform must support backend services, model-serving APIs, data and feature pipeline...

System DesignCI/CD & DeploymentContainers & Orchestration
11
0
144 people solved
Feb 13, 2026
J.P. Morgan logo
J.P. Morgan
Medium
Data ScientistNew Grad Locked

Implement KNN from Scratch

This question evaluates a candidate's understanding and practical implementation skills for instance-based supervised learning, specifically the k-nea...

Coding & Algorithms
4
0
46 people solved
Apr 7, 2026
Aeonea logo
Aeonea
Medium
Software Engineer

Discuss past project experiences and impact

Behavioral: Impactful Project Deep-Dive (Software Engineer — Technical Screen) Walk through one of your most impactful projects. Address the following...

Behavioral & Leadership
4
0
73 people solved
Sep 6, 2025
Shopify logo
Shopify
Medium
Machine Learning Engineer

Implement an interactive CLI class with tests

Design and implement a command-line interactive application as a single class using OOP principles. The program should support commands: add <key> <va...

Coding & AlgorithmsLow-Level Design (OOP)Testing & Quality
15
0
265 people solved
Aug 13, 2025
Amazon logo
Amazon
Hard
Applied ScientistSenior+

Explain Logistic Regression Fundamentals

Logistic Regression from First Principles Assumptions and Notation - Binary classification with labels y ∈ {0, 1} and features x ∈ R^d. - Linear score...

Machine Learning
6
0
99 people solved
Sep 6, 2025
Google logo
Google
Medium
Data Scientist

Design pricing and multivariate button experiments

You join a B2B SaaS firm with three public tiers (Basic $25/month, Pro $50/month, Enterprise = sales-quoted). The PM asks for a 2‑week A/B test to rai...

Analytics & ExperimentationExperiment Design (A/B Testing)Business Case Analysis
12
0
149 people solved
Oct 13, 2025
ByteDance logo
ByteDance
Hard
Data EngineerNew Grad

Describe a challenging project and your role

You are interviewing for a new-grad software role. Answer the following behavioral prompts (BQ) based on one of your internship or project experiences...

Behavioral & LeadershipProject Deep DiveCommunication & Stakeholders
9
0
107 people solved
Jan 2, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Group words into anagram lists

Given an array of strings, group the words into lists of anagrams and return the collection of groups in any order. For example, ["abc", "cab", "edf"]...

Coding & AlgorithmsArrays & Strings
8
0
111 people solved
Sep 6, 2025
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