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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
569
Updated
10.02.2026
11.9k Questions 569 Companies10.02.2026
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
Bank of America logo
Bank of America
Medium
Data Scientist

Discuss a Recent Financial-Market Trend

Discuss a recent trend in financial markets. Choose a specific market, product, or mechanism, explain the evidence for the trend, and discuss why it m...

Analytics & Experimentation
1
0
36 people solved
Sep 10, 2026
Rippling logo
Rippling
Medium
Software Engineer Locked

Implement A Prioritized Task Scheduler With Parent Dependencies

Review a task scheduler implementation prompt with filtering, due-date ordering, high-priority tie-breaks, create-time ordering, and parent dependenci...

Software Engineering FundamentalsGraphs
154
3
1031 people solved
Jul 3, 2026
Indeed logo
Indeed
Medium
Software Engineer

Implement Get and Insert in an Unrolled Linked List

Implement an unrolled linked list: an ordered sequence stored in linked blocks, where each block contains up to capacity integers. Support indexed get...

Coding & AlgorithmsLinked ListsData Structure Design
0
0
12 people solved
Sep 16, 2026
Stripe logo
Stripe
Medium
Software EngineerSenior+ Locked

Design a Count-Metrics Monitoring Platform

Design a count-metrics monitoring platform that supports recent counts, rates, label grouping, and alerts while handling duplicate and late events, re...

System Design
25
0
170 people solved
Aug 9, 2026
Amazon logo
Amazon
Hard
Software Engineer

Design a Distributed Job Scheduler with Run Logs and Exactly-Once Execution

Design a distributed job scheduler. Clients submit jobs to run at a specified time or on a recurring schedule; the system dispatches each due job to a...

System DesignJob Scheduling & WorkflowsDistributed Coordination
1
0
38 people solved
Sep 3, 2026
Waymo logo
Waymo
Medium
Software Engineer

Drive a Car to an Unseen Destination Using Only Local Directions Without Circling

A car has to find its destination on a map it cannot see in advance. It only learns about the map as it drives: every time it arrives somewhere, it fi...

Software Engineering FundamentalsGraphs
2
0
24 people solved
Sep 10, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Design a Cloud Development Environment

Design a secure cloud IDE around isolated workspaces, realtime editing, durable state, reconnection, scheduling, and operational controls.

System Design
20
0
186 people solved
Aug 24, 2026
Capital One logo
Capital One
Medium
Software Engineer

Return the Top Two Teams by Points, Goal Difference, and Tie Breakers

Return the indices of the first-place and second-place teams from four arrays of competition statistics. Team i has wins[i] wins, draws[i] draws, scor...

Coding & AlgorithmsSorting
3
0
40 people solved
Aug 27, 2026
Agoda logo
Agoda
Easy
Data EngineerSenior+

Rank Customers by Monthly Revenue with Competition Ties

Calculate each customer's revenue by calendar month, rank customers within each month, and return customers whose revenue rank is within a supplied li...

Data Manipulation (SQL/Python)SQL
1
0
21 people solved
Sep 11, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Find the Most Frequent Request IDs

Find the most frequent request IDs in a large event stream and return the top k in ranked order. The task tests frequency counting, deterministic tie-...

Coding & AlgorithmsHeaps & Priority Queues
29
0
264 people solved
Aug 22, 2026
Citadel logo
Citadel
Medium
Software Engineer

Choose 200 of a Million Records to Label, Improving on Uniform Random Sampling

A dataset holds about one million unlabeled records, and only 200 of them can be selected for labeling. The request is to pick the "useful" data, but ...

Statistics & MathSampling & Estimation
3
0
28 people solved
Aug 29, 2026
Squarepoint logo
Squarepoint
Medium
Data Scientist

Count Index Triplets With an Even Product Modulo a Given Number

Given an integer array nums, count the triplets of indices (i, j, k) with i < j < k for which the product nums[i] nums[j] nums[k] is even. Because t...

Coding & AlgorithmsMath & Number Theory
1
0
14 people solved
Sep 10, 2026
Physical Intelligence logo
Physical Intelligence
Hard
Software Engineer

Hand-Write a Bounded Cache for a Database-Backed Backend Service

In a one-hour hands-on coding round, you work in a remote development environment (an editor connected over SSH) that already contains a small backend...

Software Engineering FundamentalsCachingData Structure Design
2
0
17 people solved
Sep 8, 2026
Mercor logo
Mercor
Hard
Software Engineer

Find the Probability That One Shop Supplies the Top Two Coffees

Four distinct coffees are ranked by score: two come from shop A and two from shop B. What is the probability that both coffees from A score higher tha...

Statistics & MathProbability
3
0
41 people solved
Sep 3, 2026
StackAdapt logo
StackAdapt
Medium
Machine Learning Engineer

Reservoir Sampling: Uniform k-of-n Sample From a Stream of Unknown Length

Items arrive one at a time from a stream. You do not know the total number of items, n, in advance, and the stream may be far too large to store. Desi...

Statistics & MathMath & Number TheoryProbability
2
0
22 people solved
Sep 9, 2026
Tesla logo
Tesla
Hard
Software EngineerSenior+

Design a Distributed Blob Storage System for Build Artifacts

This system design round was set in the interviewing team's own domain: design a distributed storage system for build artifacts, the outputs of the bu...

System DesignFile & Media StorageConsistency & Availability
3
0
29 people solved
Sep 7, 2026
Snorkel logo
Snorkel
Medium
Software Engineer

Design SnapshotMap with Sparse Histories and Constant-Time Snapshots

Design a SnapshotMap with the following operations: - put(key, value) writes the current value. - get(key) reads the current value. - delete(key) remo...

Software Engineering FundamentalsData Structure DesignBinary Search
5
0
38 people solved
Sep 6, 2026
Waymo logo
Waymo
Medium
Software Engineer

Lowest Horizontal Cut That Splits Square Cakes Into Equal Total Areas

Several square cakes sit on a table, each with its sides parallel to the table's edges. You make one long horizontal cut across the whole table, along...

Coding & AlgorithmsIntervals & Scheduling
3
0
28 people solved
Sep 10, 2026
ByteDance logo
ByteDance
Medium
Software EngineerIntern

TCP vs UDP: Key Differences and the Applications That Suit Each

Compare TCP and UDP. Explain how the two transport protocols differ, and for each one, describe the application scenarios where it is the right choice...

Software Engineering FundamentalsNetworking
0
0
9 people solved
Sep 25, 2026
Airbnb logo
Airbnb
Medium
Data Engineer

Find Hosts Meeting Listing, Rating, and Review-Coverage Rules

Find hosts who meet a super-host qualification rule involving listing count, average rating, and recent review coverage. Input Tables listings | Colum...

Data Manipulation (SQL/Python)SQL
4
0
34 people solved
Sep 4, 2026
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