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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
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
Hard
Machine Learning Engineer

Demonstrate culture fit and leadership

Behavioral & Leadership — Machine Learning Engineer (Onsite) Instructions Answer concisely using the STAR framework (Situation, Task, Actions, Results...

Behavioral & LeadershipLeadership & InfluenceConflict & Collaboration
36
0
311 people solved
Aug 14, 2025
Adobe logo
Adobe
Medium
Product Manager

Gmail Product Strategy: Themes and Sequenced Bets for the Next Three Years

You are the product manager for Gmail. Lay out where you would take the product over the next three years, in the form of a roadmap. `hint Start from ...

Product Design & StrategyRoadmapping & PlanningProduct Strategy
0
0
7 people solved
Mar 15, 2026
DoorDash logo
DoorDash
Medium
Data Scientist

Solve multi-part SQL with sliding windows

Assume 'today' is 2025-09-01. You are given the following tables. users(user_id INT PRIMARY KEY, signup_date DATE) orders(order_id INT PRIMARY KEY, us...

Data Manipulation (SQL/Python)
9
0
82 people solved
Oct 13, 2025
Tubi logo
Tubi
Medium
Machine Learning Engineer

Explain ML basics and recommender tuning

Explain the following machine learning topics clearly and discuss their practical trade-offs: - overfitting and common ways to prevent it, - bagging a...

Machine Learning
4
0
93 people solved
Jan 28, 2026
Medium
Software Engineer

Compare String, StringBuilder, and StringBuffer in Java

Compare String with StringBuilder in Java, including mutability and repeated text construction. Also explain where StringBuffer fits and whether these...

Software Engineering FundamentalsProgramming LanguagesConcurrency
0
0
8 people solved
Jan 14, 2026
Google logo
Google
Medium
Data EngineerIntern

Write SQL and merge linked lists

The technical interview included two coding-style tasks: a SQL analytics query and merging two sorted linked lists. Constraints & Assumptions - For SQ...

Coding & AlgorithmsSQLLinked Lists
10
1
152 people solved
Mar 9, 2025
Aeonea logo
Aeonea
Medium
Software Engineer

Implement a tennis score tracker

Design and implement a tennis game scoring function. Input: a stream of points won by players 'A' or 'B' (e.g., A, B, B, B, B). After each point, outp...

Coding & Algorithms
8
0
98 people solved
Sep 6, 2025
Google logo
Google
Medium
Software Engineer

Find shared objects across two log files

You are given two large log files representing activity on two different days. Each line of each log has three fields: - timestamp: a time value (you ...

Coding & AlgorithmsArrays & StringsBatch & Stream Processing
10
0
146 people solved
Nov 5, 2025
Snowflake logo
Snowflake
Medium
Software Engineer

Serialize and deserialize a dictionary trie

Question Design and implement serialization and deserialization for a trie (prefix tree) that stores a large dictionary of lowercase English words. Th...

Coding & AlgorithmsTreesParsing & Interpreters
14
0
202 people solved
Sep 6, 2025
Meta logo
MetaLinkedInAmazon

Also asked at Amazon, Google, Adobe, Oracle

Medium
Software Engineer

Compute nested depth-weighted sum

You are given a nested structure containing integers and lists (e.g., [1, [4, [6]]]). Define depth of the top-level as 1. Compute the total sum of all...

Coding & Algorithms
4
0
68 people solved
WeRide logo
WeRide
Medium
Software EngineerIntern Locked

Validate Bracket Sequence

This question evaluates proficiency with stack data structures, string parsing and matching logic, and the ability to reason about algorithmic time an...

Coding & Algorithms
4
0
36 people solved
Apr 2, 2026
Amazon logo
Amazon
Medium
Data Scientist

Decide standardization, sparse numerics, correlated features

You are given a tabular dataset for supervised learning with features: F1 (counts, mostly small integers with many zeros), F2 (monetary amounts in dol...

Machine Learning
7
0
68 people solved
Oct 13, 2025
Vanta logo
Vanta
Medium
Software Engineer

Design test logging and failure-window queries

Build an in-memory service to log test run results and answer two queries. Assumptions: events arrive with strictly increasing timestamps across all t...

Coding & AlgorithmsData Structure DesignIntervals & Scheduling
24
0
298 people solved
Jul 31, 2025
Uber logo
Uber
Medium
Software Engineer

Solve BFS and grid tasks

The coding rounds included several algorithmic problems: 1. Threshold search with binary search: You are given floors 1..n and an API canOperate(floor...

Coding & AlgorithmsGraphsBinary Search
17
0
133 people solved
Feb 22, 2026
Snapchat logo
Snapchat
Medium
Machine Learning Engineer Locked

Explain core ML fundamentals and tradeoffs

This question evaluates core machine learning fundamentals including bias–variance tradeoffs, overfitting, class imbalance handling, loss function sel...

Machine LearningML FundamentalsNeural Networks & Training
11
0
118 people solved
Jan 10, 2026
Jane Street logo
Jane Street
Easy
Software Engineer

Stack Machine Interpreter with Typed Int and String Values

You are building an interpreter for a simple stack machine. The machine has a single stack, and every value on the stack is one of exactly two primiti...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
69
1
536 people solved
Apr 28, 2022
Walmart Labs logo
Walmart Labs
Medium
Software Engineer Locked

Compute the Minimum Number of Meeting Rooms

Compute the minimum rooms required for half-open meeting intervals, allowing a new meeting to begin exactly as another ends. This algorithm question t...

Coding & Algorithms
5
0
55 people solved
Jul 17, 2026
Bloomberg logo
Bloomberg
Hard
Software Engineer Locked

Design streaming mention analytics with search and alerts

This question evaluates system-design competencies such as real-time stream ingestion, stateful stream processing and time-windowed aggregation, high-...

System DesignSearch & Feed SystemsBatch & Stream Processing
51
0
450 people solved
Mar 1, 2026
Applied Intuition logo
Applied Intuition
Medium
Machine Learning Engineer

Implement and explain positional encoding

Implement Positional Encodings for a Transformer Language Model You are building a Transformer-based language model. Transformers are permutation-equi...

Machine LearningTransformers & AttentionML Coding
19
0
178 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Software Engineer

Validate a simplified numeric string

Implement isValidNumber (s) that returns true if and only if the ASCII string s represents a valid number under these simplified rules: - Optional lea...

Coding & Algorithms
8
0
102 people solved
Aug 12, 2025
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