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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
ByteDance logo
ByteDance
Hard
Data Scientist

Implement stack variants and upward path sum

Question Answer the following coding questions. They progress from augmented stacks to streaming statistics to tree path reasoning. 1. MinStack — Desi...

Coding & Algorithms
6
0
89 people solved
Jan 10, 2026
TikTok logo
TikTok
Hard
Machine Learning Engineer Locked

Implement local maxima, bagging, and k-means

This question evaluates skills in algorithm implementation and machine learning fundamentals—specifically streaming local maxima detection, bootstrap ...

Coding & AlgorithmsML CodingUnsupervised Learning
8
0
113 people solved
Jan 22, 2026
Salesforce logo
Salesforce
Medium
Software EngineerSenior+

Design a Ride-Hailing Platform: Driver Matching, Surge Pricing and Ride Acceptance

Design the core backend of a ride-hailing platform: a rider requests a trip from their location, the system finds a suitable nearby driver, the driver...

System DesignGeo & Delivery SystemsDistributed Coordination
1
0
21 people solved
May 6, 2026
Jump Trading logo
Jump Trading
Medium
Software Engineer

Explain C++ vector, unordered_map, and virtual functions

Explain C++ vector, unordered_map, and virtual functions In C++, explain: - The amortized and worst-case time complexity of vector::push_back, and how...

Coding & AlgorithmsProgramming Languages
38
0
279 people solved
Jul 16, 2025
ADP logo
ADP
Medium
Product Manager

Product design: an applicant tracking system for recruiters, managers and candidates

Design an applicant tracking system (ATS): the product employers use to open roles, collect applications and move candidates through interviews to an ...

Product Design & StrategyProduct Sense
0
0
6 people solved
Feb 20, 2026
Pony.Ai logo
Pony.Ai
Medium
Software Engineer Locked

Implement a Min-Heap with Insert and Remove-Min

Implement a minimum binary heap from scratch in a zero-indexed array, supporting insertion and removal of the smallest value. Handle duplicate and neg...

Coding & Algorithms
4
0
35 people solved
Aug 15, 2026
Datadog logo
Datadog
Medium
Software Engineer

Deep-dive a recent project

Project Deep-Dive (Technical Screen: Behavioral & Leadership) Context You will be asked to walk through a recent project you owned end-to-end. Assume ...

Behavioral & LeadershipProject Deep DiveMetrics & KPIs
24
0
184 people solved
Sep 6, 2025
Apple logo
Apple
Medium
Data Scientist

Build leak-safe sklearn model with calibration

You must build an end‑to‑end scikit‑learn pipeline to predict churn_28d at decision time t0 using only features available at or before t0 (no leakage)...

Machine LearningSupervised LearningFeature Engineering
11
0
145 people solved
Oct 13, 2025
Rippling logo
Rippling
Hard
Software Engineer Locked

Explain Your Reason for Changing Roles and Your Interest in the Team

Explain job-change motivation and role interest with specific goals, evidence-backed fit, professional framing, and honest open questions.

Behavioral & LeadershipMotivation & Fit
2
0
41 people solved
Sep 13, 2026
Apple logo
Apple
Hard
Software Engineer

Implement a robust REST API method

Implement a robust REST API method Design and implement a REST API method to create a resource with idempotency Context You are building a create endp...

System DesignAPI DesignDistributed Transactions & Idempotency
35
0
269 people solved
Jul 15, 2025
Otter.Ai logo
Otter.Ai
Medium
Data EngineerSenior+

Defend a Data Pipeline Architecture and Its Trade-offs

Prompt Choose one production data pipeline that you personally designed or substantially changed. Walk through its architecture, the requirements that...

System Design
2
0
45 people solved
Apr 2, 2026
Tesla logo
Tesla
Medium
Machine Learning Engineer

Compute nearest index within threshold after walking distances

You are given: ( 1) points: a list of N 2D coordinates in miles, points[i] = [x_i, y_i], ordered; ( 2) distances: a list of M nonnegative floats (mile...

Data Manipulation (SQL/Python)
6
0
68 people solved
Aug 12, 2025
Microsoft logo
Microsoft
Medium
Machine Learning Engineer

Handle Cross-Team Dependencies and Scope Conflicts

Answer the following behavioral interview questions using a concrete example from your experience: 1. You depend on another team to complete work, but...

Behavioral & Leadership
5
0
84 people solved
Apr 18, 2026
Uber logo
Uber
Medium
Product Manager

Uber After Driverless Cars Mature: Anticipate the Biggest Problems and Plan Responses

Imagine it is 2050 and fully driverless cars are a mature, solved technology. As a product manager, identify the problems Uber is likely to face in th...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
1
0
7 people solved
Aug 2, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Peer-to-Peer File Distribution: Discovery, Chunked Transfer and Integrity Checks

You are asked to design a peer-to-peer file sharing system. Users publish files they hold, and other users download those files directly from the peer...

System DesignFile & Media StorageNetworking
0
0
8 people solved
Jan 8, 2026
Qube Research & Technologies logo
Qube Research & Technologies
Medium
Software Engineer

Implement a type-erased function wrapper

Implement a minimal std::function-like callable wrapper in C++ using type erasure via inheritance and a virtual call. Define a template Function<R(Arg...

Coding & AlgorithmsProgramming LanguagesMemory Management
14
0
158 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Software Engineer

Maintain real-time top-K products from events

Design a data structure/class that ingests a stream of product events and returns the current top‑K products at any time. Events include {timestamp, p...

Coding & Algorithms
6
1
95 people solved
Sep 6, 2025
Qube Research & Technologies logo
Qube Research & Technologies
Hard
Software Engineer Locked

Explain left-skewed returns and Black–Scholes terms

This question evaluates understanding of quantitative finance and statistical concepts—specifically interpretation of left-skewed return distributions...

Software Engineering Fundamentals
3
0
53 people solved
Jan 15, 2026
Capital One logo
Capital One
Medium
Product Manager

Launch Plan When an Internal Team's Component Is Six Months Late

You are the product manager for a new product launch. The internal team that owns one of the launch's components says it will not be ready for six mon...

Product / Decision MakingRequirements & Launch ExecutionPrioritization & Tradeoffs
1
0
16 people solved
Aug 15, 2025
Nuro logo
Nuro
Medium
Software Engineer Locked

Find Intersections Between Two Interval Lists

Find every non-empty intersection between two sorted lists of disjoint closed intervals. Preserve ascending order and correctly include intersections ...

Coding & Algorithms
5
0
42 people solved
May 26, 2026
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