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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
Affirm logo
Affirm
Medium
Software Engineer

Determine winner in optimal-play card game

Determine winner in optimal-play card game Given a row of N cards with integer values (values may be positive, zero, or negative), two players alterna...

Coding & AlgorithmsDynamic Programming
31
2
251 people solved
Jul 15, 2025
Citadel logo
Citadel
Medium
Site Reliability Engineer

Solve Five Core Python Data-Processing Exercises

Solve Five Core Python Data-Processing Exercises Implement and explain: repeat a message n times with blank lines; square a list then reverse it; Fizz...

Software Engineering Fundamentals
6
0
41 people solved
May 8, 2026
Moveworks logo
Moveworks
Medium
Software Engineer

Select next Hangman letter

Given the current state of a Hangman game, implement a function that selects the next letter with the highest likelihood of appearing in the secret wo...

Coding & AlgorithmsString AlgorithmsArrays & Strings
29
1
280 people solved
Sep 6, 2025
ZipHQ logo
ZipHQ
Hard
Software Engineer

Find shortest path on infinite grid

You are given an infinite 2D grid with integer coordinates. From a cell (x, y) you may move in 4 directions (North/South/East/West) by 1 cell per move...

Coding & AlgorithmsGraphs
64
0
515 people solved
Mar 11, 2026
Citadel logo
Citadel
Medium
Software Engineer Locked

Implement array merge, round-robin scheduler, and trading simulator

This multipart problem evaluates algorithmic problem solving and systems-design competencies including in-place array manipulation, queue-based schedu...

Coding & AlgorithmsSimulation & State MachinesTwo Pointers & Sliding Window
24
0
252 people solved
Jan 22, 2026
OpenAI logo
OpenAI
Medium
Data Scientist

Design Schema for Accurate Subscription State Tracking

subscription_events +----------+---------------------+-----------+-----------+ | user_id | event_ts | event_type| plan_type | +----------+...

Data Manipulation (SQL/Python)SQLDimensional Modeling
149
0
496 people solved
Aug 4, 2025
Harvey logo
Harvey
Hard
Software Engineer Locked

Design a RAG Q&A Agent over Law Firm Legal Memos

This question evaluates a candidate's ability to design a retrieval-augmented generation system, covering ingestion, chunking, indexing, retrieval, an...

ML System DesignRetrieval-Augmented GenerationEmbeddings & Vector Search
17
0
285 people solved
Jun 18, 2026
Figma logo
Figma
Medium
Machine Learning Engineer Locked

Design Feed Ranking and HTML Generation

This question evaluates the ability to design end-to-end machine learning systems for personalized feed ranking and for natural-language-to-HTML gener...

ML System Design
12
0
81 people solved
Mar 25, 2026
Plaid logo
Plaid
Medium
Software Engineer

Explain project scope, timeline, and delegation

10–15 Minute Project Deep Dive (Behavioral and Leadership in a Technical Screen) Context You are asked to present a concise, slide-driven deep dive on...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
22
1
306 people solved
Sep 6, 2025
Kikoff logo
Kikoff
Medium
Software Engineer

Parse CSV and format transactions

Given a CSV file containing many transactional records with columns Merchant, Amount, Date (YYYY-MM-DD), and Status, write a script to parse the file ...

Data Manipulation (SQL/Python)
7
0
89 people solved
Aug 12, 2025
Meta logo
Meta
Medium
Software Engineer

Measure Forty-Five Minutes with Two Unevenly Burning Ropes

Interview Prompt You have two ropes. Each rope takes exactly 60 minutes to burn completely from one end, but neither burns at a uniform rate and the r...

Statistics & Math
2
0
34 people solved
Apr 3, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Design a Calendar System

This question evaluates a candidate's ability to design a large-scale calendar backend, covering data modeling for events, recurrence, invitations, an...

System DesignSystem Design FundamentalsIntervals & Scheduling
15
0
132 people solved
Jun 23, 2026
Applied Intuition logo
Applied Intuition
Easy
Software Engineer

Design a KV store with transactions

System Design Prompt Design an in-memory/disk-backed key-value store that supports transactions. Functional requirements - Basic operations: Get(key),...

System DesignKey-Value StoresTransactions & Isolation
16
0
127 people solved
Feb 12, 2026
Balyasny logo
Balyasny
Hard
Software Engineer Locked

Process Get and Set Operations in a Key-Value Cache

Process get and set operations in an in-memory key-value cache, with overwrite behavior, exact keys, and a defined missing-key result.

Coding & AlgorithmsData Structure DesignKey-Value Stores
1
0
18 people solved
May 25, 2026
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Merge Overlapping Closed Intervals

Implement merge_intervals(intervals) for closed intervals. Work through the function contract, boundary cases, correctness argument, and time and spac...

Coding & Algorithms
3
0
25 people solved
Aug 9, 2026
Netflix logo
Netflix
Medium
Machine Learning Engineer

Explain self-attention, LoRA, Adam vs SGD, ViT

Answer the following ML/Deep Learning interview questions: 1) Describe self-attention in Transformer models. What are the queries, keys, and values, a...

Machine LearningTransformers & AttentionComputer Vision
23
0
192 people solved
Feb 23, 2026
Verkada logo
Verkada
Medium
Frontend EngineerNew Grad Locked

Build a React dashboard with filters

This question evaluates frontend engineering skills in React, including component decomposition, controlled inputs and state management, semantic HTML...

Software Engineering Fundamentals
3
0
65 people solved
Jan 10, 2026
Motive logo
Motive
Hard
Software Engineer

Design real-time delivery tracking system

Question Design a real-time delivery / courier-tracking platform that gives dispatchers, operations, and customers live visibility into each courier's...

System DesignGeo & Delivery SystemsReal-Time Systems
31
0
553 people solved
Aug 13, 2025
Meta logo
Meta
Medium
Software Engineer

Implement an in-memory key-field-value DB with TTL

In-Memory DB with TTL + Scan + Backup/Restore Implement an in-memory database storing records by (key, field) -> value with optional TTL. Data model /...

Coding & AlgorithmsKey-Value StoresData Structure Design
14
0
185 people solved
Feb 11, 2026
Netflix logo
Netflix
Medium
Software Engineer

Dedupe titles in per-shelf viewport

You are rendering a streaming app home page. - The home page consists of shelves displayed from top to bottom. - Each shelf contains a list of titleId...

Coding & AlgorithmsArrays & StringsSimulation & State Machines
17
1
147 people solved
Jan 22, 2026
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