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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
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
Snowflake logo
Snowflake
Medium
Software Engineer

Discuss challenges and cross-functional collaboration

Question Tell me about your most challenging project. Walk me through it end to end and be ready to go deep on the technical and the organizational si...

Behavioral & LeadershipProject Deep DiveAmbiguity & Decision Making
10
0
154 people solved
Sep 6, 2025
Apple logo
Apple
Hard
Software Engineer

Implement a robust REST API method

Implement a robust REST API method Design and implement a REST API method to create a resource with idempotency Context You are building a create endp...

System DesignAPI DesignDistributed Transactions & Idempotency
32
0
245 people solved
Jul 15, 2025
Netflix logo
Netflix
Easy
Machine Learning Engineer Locked

Design an ML job scheduler

This question evaluates competency in ML systems design, distributed resource scheduling, and cluster resource management for heterogeneous CPU and GP...

ML System Design
5
0
96 people solved
Jan 6, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Solve programming task with follow-ups

Question Pure programming problem solving: implement the core algorithmic solution, then extend it to ( 1) support a constraint of consecutive N eleme...

Coding & Algorithms
22
0
222 people solved
Aug 4, 2025
Chime logo
Chime
Easy
Software Engineer

Explain sync/async, Go concurrency, SQL vs NoSQL

You are interviewing for a backend engineering role. Answer the following conceptual questions clearly and with concrete examples. 1) Synchronous vs a...

Software Engineering FundamentalsConcurrencyStorage & Sharding
31
0
288 people solved
Nov 13, 2025
Disney logo
Disney
Medium
Data Engineer

Generate All Well-Formed Parenthesis Strings

A string of parentheses is called well-formed if every opening bracket ( has a matching closing bracket ) and the brackets are correctly nested. For e...

Coding & Algorithms
4
0
35 people solved
Feb 20, 2026
Robinhood logo
Robinhood
Medium
Data Scientist

Design Real-Time Analytics Pipeline with Kafka and Flink

Design Real-Time Analytics Pipeline with Kafka and Flink Real-Time Clickstream Analytics Pipeline with Kafka and Flink Scenario You need to design a r...

Behavioral & LeadershipBatch & Stream ProcessingMessaging & Event-Driven
14
0
142 people solved
Aug 4, 2025
Voleon logo
Voleon
Hard
Machine Learning EngineerSenior+

Explain a Markov Decision Process

Explain a Markov Decision Process Define a Markov decision process using states, actions, transition probabilities, rewards, and a policy. Explain the...

Machine Learning
3
0
44 people solved
Jul 31, 2025
Nextdoor logo
Nextdoor
Medium
Software Engineer

Implement version string comparator with extensions

Implement a function compareVersions(a, b) that compares two software version strings. Each version consists of dot-separated numeric components (e.g....

Coding & AlgorithmsParsing & InterpretersArrays & Strings
19
0
152 people solved
Jul 31, 2025
Navan logo
Navan
Medium
Software Engineer

Design time-based key-value store

Design an in-memory key-value store that supports time-based lookups. Operations Implement a class (or module) with the following methods: 1. set(key,...

Coding & AlgorithmsData Structure DesignBinary Search
7
0
147 people solved
Nov 7, 2025
Two Sigma logo
Two Sigma
Medium
Quantitative ResearcherIntern

Daily Temperatures by Town: Linear Models to Predict NYC Temperature

Daily Temperatures by Town: Linear Models to Predict NYC Temperature You are given a dataset of historical daily temperature readings for New York Cit...

Machine LearningRegression & Statistical Modeling
15
0
132 people solved
Sep 10, 2025
Meta logo
Meta
Medium
Software Engineer

Design a bank system with scheduled transfers

Bank System (OOD): Accounts, Transfers, Scheduling, Top Spending, Merge Design an in-memory banking system that supports: - account creation - deposit...

Coding & Algorithms
4
0
70 people solved
Feb 11, 2026
Snowflake logo
Snowflake
Hard
Software Engineer Locked

Clarify and Prune an N-ary Tree to a Depth Limit

Clarify an ambiguous N-ary tree task involving maximum depth and minimum deletion under a depth limit. Compare distinct deletion-cost contracts, prese...

Software Engineering Fundamentals
7
0
75 people solved
Jun 20, 2026
Mistral AI logo
Mistral AI
Medium
Software Engineer

Set up a Python LLM dev environment

Task: Reproducible Local Python Environment for a Mistral Agent You are to set up a clean, fully reproducible local Python environment to develop a sm...

Software Engineering Fundamentals
30
0
450 people solved
Sep 6, 2025
TikTok logo
TikTok
Medium
Software Engineer

Reverse nodes in even-length linked-list groups

Problem Given the head of a singly linked list, you will traverse the list in contiguous groups of increasing size: the 1st group has size 1, the 2nd ...

Coding & AlgorithmsLinked Lists
7
0
102 people solved
Dec 11, 2025
Two Sigma logo
Two Sigma
Medium
Data Scientist Locked

Design features for house price prediction

This question evaluates competence in feature engineering, data preprocessing, baseline regression modeling, and model evaluation for tabular price pr...

Machine LearningFeature EngineeringData Cleaning & Wrangling
17
0
130 people solved
Jan 22, 2026
Upstart logo
Upstart
Medium
Software Engineer

Discuss Compensation Expectations

Discuss Compensation Expectations Explain your compensation expectations while keeping the discussion collaborative and tied to the role's scope and t...

Behavioral & Leadership
2
0
22 people solved
Jan 15, 2026
Netflix logo
Netflix
Medium
Data Scientist

Analyze Retention Metrics Using SQL and Python

transactions +----------+--------+------------+---------+-----------+ | user_id | txn_id | txn_date | amount | is_fraud | +----------+--------+--...

Data Manipulation (SQL/Python)
3
0
51 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Software Engineer

Design an online coding platform

Design an online coding practice and interview platform (similar to well-known coding challenge sites). The platform should allow: - Users to sign up,...

System Design
6
0
60 people solved
Dec 8, 2025
Google logo
Google
Medium
Software Engineer Locked

Min boards to cover roof holes

This question evaluates competency in combinatorial optimization and problem modeling for coverage constraints, testing algorithmic reasoning, complex...

Coding & AlgorithmsGraphs
21
1
205 people solved
Feb 12, 2026
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