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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
Point72 logo
Point72
Medium
Quantitative Researcher

Choose and Explain a Classical Hypothesis Test

Choose and Explain a Classical Hypothesis Test Explain null and alternative hypotheses, significance level, p-value, Type I error, and Type II error. ...

Statistics & Math
4
0
43 people solved
Dec 14, 2025
Google logo
Google
Medium
Software Engineer

Compute shortest paths with blocked nodes

Given a graph with nodes and edges and a designated source node s, compute the shortest distance from s to every other node. Some nodes are inaccessib...

Coding & AlgorithmsGraphs
21
0
143 people solved
Sep 6, 2025
NVIDIA logo
NVIDIA
Medium
Software Engineer

Implement a Python test harness

Implement a Python test harness Implement a Python-based test harness for graphics validation. Discuss design of fixtures, parametrization, dependency...

Data Manipulation (SQL/Python)Testing & QualityConcurrency
6
0
108 people solved
Aug 9, 2025
DoorDash logo
DoorDash
Medium
Machine Learning Engineer

How would you prevent wrong items in deliveries?

Behavioral / Product-Process Scenario You work on a food delivery platform. Customers sometimes receive the wrong items (restaurant packed incorrectly...

Behavioral & LeadershipProduct Design & ImprovementMetric Diagnostics
7
0
131 people solved
Oct 17, 2025
Fidelity logo
Fidelity
Medium
Software Engineer

Describe Angular features

Describe Angular features What are the key features of Angular? Discuss modules, components, templates, dependency injection, change detection, RxJS o...

Coding & Algorithms
8
0
65 people solved
Jul 31, 2025
Lyft logo
Lyft
Hard
Data Scientist

How to Target Coupon Users

A ride-sharing company such as Lyft wants to launch a coupon campaign to increase commuter rides, but the coupon budget is limited. How would you anal...

Analytics & ExperimentationPersonalizationCausal Inference
12
0
160 people solved
Dec 16, 2025
Anthropic logo
Anthropic
Medium
Software Engineer

Describe your most impactful project

Tell me about the project where you had the most impact. Explain the business or user problem, why it mattered, what your specific role was, the harde...

Behavioral & LeadershipProject Deep Dive
23
0
342 people solved
Mar 13, 2026
HubSpot logo
HubSpot
Medium
Machine Learning EngineerSenior+

Discuss compensation expectations and level

HR Screen: Compensation Expectations for a Senior Machine Learning Engineer Context: In an initial HR screen for a senior-level Machine Learning Engin...

Behavioral & Leadership
7
0
69 people solved
Sep 6, 2025
Meta logo
Meta
Hard
Software EngineerNew Grad

Answer Repeated Range Aggregate Queries on a Static BST

Problem A fixed binary search tree has been converted once by an in-order traversal into the JSON-portable array sortedValues, which is sorted in nond...

Coding & Algorithms
1
0
23 people solved
Dec 21, 2025
Faire logo
Faire
Medium
Software Engineer

Print a Centered Pascal Triangle

Given a positive integer height, generate the first height rows of Pascal's triangle and print them as a centered text triangle. Formatting requiremen...

Coding & Algorithms
3
0
66 people solved
Apr 10, 2026
Google logo
Google
Medium
Data Scientist

Implement Sampling and Minimize Loss in Numerical Coding

Scenario Numerical coding challenges on sampling and loss minimization. Question a) Implement functions to sample from truncated normal distributions ...

Coding & Algorithms
28
0
144 people solved
Jul 12, 2025
Capital One logo
Capital One
Medium
Data Scientist

Design late-tolerant streaming window aggregator

You receive an unbounded stream of events: (event_time, user_id, category). Events may arrive up to 48 hours late and are not ordered by time. Design ...

Coding & AlgorithmsBatch & Stream ProcessingData Ingestion & CDC
10
0
97 people solved
Oct 13, 2025
Google logo
Google
Medium
Software Engineer Locked

Solve meeting-room scheduling and shortest paths

This question evaluates proficiency in interval scheduling and resource allocation as well as shortest-path computation in weighted directed graphs, e...

Coding & AlgorithmsIntervals & SchedulingGraphs
10
0
182 people solved
Jan 6, 2026
Meta logo
Meta
Medium
Data Scientist

Measure scheduled posts feature success

Facebook is considering launching a new feature that allows users to schedule a post to be published at a future time. The product hypothesis is that ...

Analytics & ExperimentationExperiment Design (A/B Testing)Bayesian Statistics
14
0
158 people solved
Apr 30, 2026
Salesforce logo
Salesforce
Medium
Software Engineer

Describe the Team Environment in Which You Do Your Best Work

Prompt Describe the team environment in which you do your best work. Go beyond a list of pleasant qualities: explain the concrete behaviors, decision ...

Behavioral & Leadership
1
0
18 people solved
Apr 11, 2026
Fannie Mae logo
Fannie Mae
Medium
Data Scientist

Understand SQL Aggregations and Joins: Key Differences Explained

Employees +----+--------+--------+---------+ | id | name | salary | dept_id | +----+--------+--------+---------+ | 1 | Alice | 70000 | 1 | ...

Data Manipulation (SQL/Python)
104
0
417 people solved
Jul 12, 2025
Affirm logo
Affirm
Medium
Software Engineer

Implement and debug event filtering in Python

You are given a list of event dictionaries with keys: id (str), type (str), ts (int, seconds since epoch), payload (dict). Implement filter_events(eve...

Data Manipulation (SQL/Python)
4
0
58 people solved
Jul 15, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Implement minimum window substring with counts

Implement min_window_with_counts(s, t) Task Write a function: - min_window_with_counts(s: str, t: str) -> tuple[int, int] that returns the inclusive (...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
10
0
130 people solved
Oct 13, 2025
Cisco logo
Cisco
Medium
Software Engineer

Solve max-subarray, min-unique, and grid-jump

1) Given an integer array nums, find a contiguous subarray with the maximum possible sum. Return (maxSum, startIndex, endIndex). If multiple subarrays...

Coding & Algorithms
4
0
68 people solved
Sep 6, 2025
Airbnb logo
Airbnb
Hard
Software Engineer

Design a dynamic rental pricing system

System Design: ML-Driven Nightly Pricing for Short-Term Rentals Context Design a production ML system that recommends (and optionally auto-sets) night...

ML System DesignExperiment Design (A/B Testing)Feature Engineering
19
0
182 people solved
Aug 12, 2025
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