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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
570
Updated
10.05.2026
11.9k Questions 570 Companies10.05.2026
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
Anthropic logo
Anthropic
Medium
Software Engineer

Design an in-memory banking service

Design an in-memory banking service supporting timestamped operations and edge-case semantics. Implement: ( 1) create_account(id, t): Create a new acc...

Coding & AlgorithmsData Structure DesignHeaps & Priority Queues
138
1
1219 people solved
Sep 6, 2025
C3 AI logo
C3 AI
Hard
Data Scientist Locked

Connect Bias-Variance Trade-offs to Bagging and Boosting

Connect the bias-variance decomposition to bagging, random forests, and gradient boosting. Understand learner correlation, sequential residual fitting...

Machine Learning
1
0
23 people solved
Aug 21, 2026
Plaid logo
Plaid
Medium
Software Engineer Locked

Explain What You Seek and an Unexpected Project Outcome

Prepare concise answers about priorities for a next role and a project whose outcome changed unexpectedly. Ground both parts in real evidence, showing...

Behavioral & Leadership
11
0
85 people solved
Aug 1, 2026
Stripe logo
Stripe
Hard
Software EngineerSenior+ Locked

Implement Validation and String Compression

This question evaluates string processing, input validation, tokenization, hierarchical string manipulation, and algorithmic complexity analysis skill...

Coding & AlgorithmsParsing & InterpretersData Cleaning & Wrangling
8
0
138 people solved
Mar 1, 2026
xAI logo
xAI
Medium
Frontend Engineer

Implement an Asynchronous React Typeahead

Implement a React typeahead component that fetches suggestions as a user types and lets the user select one. Constraints & Assumptions Use this explic...

Software Engineering FundamentalsReact & UI FrameworksState Management
1
0
13 people solved
Sep 15, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Answer Culture and Project Questions

Prepare answers for Anthropic's hiring-manager (HM) and culture interviews for a Software Engineer role. These are the two non-technical rounds in a f...

Behavioral & LeadershipProject Deep DiveMotivation & Fit
16
0
309 people solved
Apr 19, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Design a single- and multi-threaded web crawler

Web Crawler (single-threaded, then multi-threaded) You are given: - A starting URL startUrl (e.g., "http://news.example.com/a/index.html"). - An inter...

Coding & AlgorithmsGraphsConcurrency
90
0
722 people solved
Oct 26, 2025
UiPath logo
UiPath
Medium
Machine Learning Engineer

LLM fundamentals: Transformer internals, beam search decoding, and LoRA fine-tuning

Explain three building blocks of modern large language models in enough depth to handle follow-up questions on the details. Answer the parts in order....

Machine LearningTransformers & AttentionFine-Tuning & Alignment Techniques
1
0
9 people solved
Sep 9, 2026
Snowflake logo
Snowflake
Medium
Software Engineer Locked

Behavioral: Proudest Project, Conflict, and Failure

This question evaluates behavioral and leadership competencies through three classic prompts covering personal achievement, interpersonal conflict, an...

Behavioral & LeadershipProject Deep DiveConflict & Collaboration
15
0
152 people solved
Jun 17, 2026
Pinterest logo
Pinterest
Hard
Data Scientist

Implement and Evaluate Pin Similarity in Python

You are asked to compare Pin similarity in Python. Begin by clarifying how a Pin is represented and what “similar” should mean. Then assume the interv...

Data Manipulation (SQL/Python)Pandas & Python DataModel Evaluation
12
1
188 people solved
May 17, 2026
Capital One logo
Capital One
Medium
Data Scientist

Analyze Subscription, Insurance, App, and Card Cases

You are in a Data Scientist "power day" interview for a product analytics role. The interviewer gives you four independent business cases. For each on...

Analytics & ExperimentationBusiness Case Analysis
39
0
693 people solved
Apr 12, 2026
Shopify logo
Shopify
Medium
Software Engineer AI

Implement an In-Memory File System

Implement an In-Memory File System The source reports an in-memory file-system exercise but not its exact error serialization or current-directory rem...

Coding & Algorithms
8
0
102 people solved
Apr 28, 2026
Revolut logo
Revolut
Medium
Software EngineerNew Grad

Implement a random fixed-size load balancer

Problem: Build a simple load balancer Implement a minimal in-memory load balancer that routes each incoming request to one backend node chosen uniform...

Coding & AlgorithmsData Structure Design
40
0
317 people solved
Feb 11, 2026
Airbnb logo
Airbnb
Medium
Software EngineerSenior+

Parse Query Parameters Into a Map

Implement a function that parses the query portion of a GET URL and returns a map from query keys to parsed values. Input is a string that may start w...

Coding & Algorithms
7
1
81 people solved
Mar 2, 2026
Fora Travel logo
Fora Travel
Medium
Software Engineer

Design Travel Page Data APIs

A travel advisory company is launching a customer-facing product experience for browsing and requesting travel services. You are given mockups for thr...

Software Engineering FundamentalsAPI DesignSystem Design Fundamentals
12
0
163 people solved
Apr 6, 2026
AMD logo
AMD
Medium
Software Engineer

Explain How You Learn New Technical Topics

How do you learn new technical topics and decide that you understand them well enough to use them in engineering work? Constraints & Assumptions Descr...

Behavioral & Leadership
0
0
9 people solved
Sep 14, 2026
Ramp logo
Ramp
Medium
Software Engineer Locked

Implement a Single-Screen Tic-Tac-Toe Game with State Management

This Ramp software engineering question evaluates state management through a single-screen tic-tac-toe implementation. It helps candidates practice mo...

Software Engineering FundamentalsSimulation & State MachinesState Management
20
0
148 people solved
Jul 2, 2026
Airbnb logo
Airbnb
Medium
Data Scientist Locked

Present and Defend a Product Experiment You Designed

A behavioral and experimentation interview about presenting a real product experiment with technical rigor. Candidates must explain the hypothesis, ra...

Behavioral & Leadership
8
0
79 people solved
Aug 1, 2026
Atlassian logo
Atlassian
Medium
Software Engineer

Implement snake game and find org LCA

Part A — Snake Game Engine: Implement a grid-based snake game. The board has height H and width W (0-indexed, row-major). The snake starts at (0, 0) m...

Coding & AlgorithmsSimulation & State MachinesTrees
15
0
179 people solved
Sep 6, 2025
Ramp logo
Ramp
Hard
Software Engineer

Detect recurring transactions from a ledger

You are given a list of credit/debit card transactions. Each transaction has: - transaction_date (YYYY-MM-DD) - merchant (string) - amount (decimal, p...

Coding & Algorithms
57
0
667 people solved
Dec 15, 2025
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