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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
Swiggy logo
Swiggy
Medium
Product Manager

Root-Causing Slower Instamart Deliveries in a Tier-1 City Since Last Week

You are a product manager at Swiggy working on Instamart, its quick-commerce grocery delivery service. Since last week, Instamart orders in a Tier-1 c...

Analytics & ExperimentationMetric Diagnostics
1
0
10 people solved
Oct 9, 2026
A
Addepar
Medium
Software Engineer Locked

Implement a Transactional In-Memory Table

Implement an in-memory row-and-column table with transactional create, delete, update, find-and-replace, commit, and rollback behavior. The prompt def...

Coding & Algorithms
4
0
43 people solved
Aug 26, 2026
Coinbase logo
Coinbase
Hard
Software Engineer AI

Debug and Extend Cursor Queries

You are in an AI-assisted coding interview. You may consult AI-generated suggestions, but you are expected to validate them, explain your reasoning ou...

Software Engineering FundamentalsDebuggingAI-Assisted Development
32
0
607 people solved
Apr 2, 2026
Google logo
Google
Medium
Software Engineer

Implement frequency + distance top‑K queries

You will implement solutions for two coding interview questions. Question 1: Return the top‑K points by frequency (with distance tie‑break) You are gi...

Coding & AlgorithmsHeaps & Priority QueuesData Structure Design
115
0
962 people solved
Feb 12, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+ Locked

Find Unique Zero-Sum Triplets

Find unique zero-sum triplets with distinct indices, deterministic ordering, careful duplicate suppression, and explicit time and space analysis.

Coding & AlgorithmsTwo Pointers & Sliding WindowSorting
5
0
100 people solved
Sep 10, 2026
Arm logo
Arm
Medium
Backend EngineerIntern

Explain timing and testability concepts

For a digital implementation or backend-focused interview, explain the following concepts: 1. What are setup time and hold time? 2. How does clock ske...

Software Engineering Fundamentals
21
0
151 people solved
Mar 13, 2026
Uber logo
Uber
Medium
Software Engineer

Count Substrings with Almost-Even Letter Counts

Problem Count the nonempty contiguous substrings of word in which no more than one letter occurs an odd number of times. The input uses only lowercase...

Coding & AlgorithmsBit ManipulationArrays & Strings
2
1
23 people solved
Microsoft logo
Microsoft
Medium
Machine Learning Engineer

Design an Evaluation and Improvement Loop for a Production LLM Application

You are in the ML system design round of a machine learning loop for LLM products. The problem is about evaluating and improving an LLM system: design...

ML System DesignLLM EvaluationModel Monitoring & Drift
3
0
35 people solved
Apr 9, 2026
Anthropic logo
Anthropic
Hard
Software EngineerSenior+

Why Join an AI Safety-Focused Lab, and What Is Your View on AI Safety?

You are interviewing for a senior software engineering role at Anthropic, an AI company that places AI safety at the center of its public mission. Bef...

Behavioral & LeadershipMotivation & FitEthics & Responsibility
3
0
30 people solved
Jul 26, 2026
Google logo
GoogleAmazonMeta

Also asked at Meta, Bloomberg, Microsoft, IBM, Swiggy

Medium
Software Engineer

Add Two Integers Without Plus or Minus

Add Two Integers Without Plus or Minus Given two integers a and b, return their sum without using the + or - operators. Function int getSum(int a, int...

Coding & AlgorithmsBit Manipulation
0
0
9 people solved
Qualified Health logo
Qualified Health
Hard
Software Engineer

Stream LLM Output While Committing Reliable DAG Results

A workflow runs an LLM task whose output must appear incrementally in an interactive client. Downstream DAG nodes, however, require the complete struc...

System DesignReal-Time SystemsJob Scheduling & Workflows
1
0
18 people solved
Sep 30, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad Locked

Top K Frequent Values

Return the top k most frequent integers with a deterministic smaller-value tie-break and efficient frequency selection.

Coding & AlgorithmsHeaps & Priority QueuesArrays & Strings
53
1
834 people solved
Sep 2, 2026
Rippling logo
Rippling
Hard
Software Engineer

Design a scalable expense rules engine

Design a Rules Engine for Corporate Credit-Card Expense Review Context We offer a corporate credit card that employees use for business expenses. Mana...

System DesignLow-Level Design (OOP)API Design
341
2
2899 people solved
Sep 6, 2025
Apple logo
Apple
Medium
Product Manager

Post-Launch Scorecard for an Apple Release: Customer Experience and Competitive Position

Apple refreshes its products on a regular cadence, adding features and changing designs. Take a recent update to an Apple product and explain how you ...

Analytics & ExperimentationLaunch EvaluationCausal Inference
1
0
14 people solved
Aug 13, 2026
Waymo logo
Waymo
Medium
Frontend EngineerSenior+ Locked

Filter an N-ary Tree by Substring and Render It With Indentation in a UI

Filter an n-ary tree by removing every node whose value contains a substring, along with its subtree, then build a UI that renders the filtered tree w...

Software Engineering FundamentalsReact & UI FrameworksTrees
5
0
60 people solved
Sep 10, 2026
Coreweave logo
Coreweave
Medium
Software Engineer Locked

Design a Website Monitoring Service

This Coreweave system design question asks candidates to design a website monitoring service. It prepares candidates to discuss scheduling, probes, al...

System DesignObservabilitySystem Design Fundamentals
40
0
340 people solved
Jul 2, 2026
Capital One logo
Capital OneeBay
Medium
Software Engineer

Place Parentheses for the Least Expression Value

Problem The string expression contains two positive integers separated by one +. Insert one pair of parentheses, with the opening parenthesis to the l...

Coding & AlgorithmsParsing & InterpretersMath & Number Theory
2
0
14 people solved
Google logo
GoogleMetaAmazon

Also asked at Amazon, Bloomberg, Microsoft, Arista Networks, TCS, Apple

Easy
Software Engineer

Remove Every Matching Node from a Linked Chain

Problem Remove every node whose value equals val from a singly linked list, and return the new head. Keep the remaining nodes in their existing list o...

Coding & AlgorithmsLinked Lists
0
0
12 people solved
Amazon logo
Amazon
Medium
Software Engineer Locked

Design and Implement an Object-Oriented Pizza Ordering System

Design and implement an object-oriented pizza ordering simulation in which customers build orders of pizzas with sizes, crusts and toppings, the syste...

Software Engineering FundamentalsLow-Level Design (OOP)Simulation & State Machines
7
0
146 people solved
Sep 5, 2026
Upstart logo
Upstart
Medium
Software Engineer

Solve Reported OA Coding Problems

The post describes several algorithm questions from an online assessment. The concrete problems that can be reconstructed are: 1. Remove Blocks in a G...

Coding & AlgorithmsGrids & MatricesArrays & Strings
42
0
302 people solved
Apr 5, 2026
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