Software Engineer Software Engineering Fundamentals Interview Questions
Practice 524 real Software Engineering Fundamentals interview questions for Software Engineer roles. From companies including Amazon, Google, Bitkernel, Apple, DoorDash.
"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"
"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"
"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."
"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."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"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."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"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."
"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."
"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."
"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."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"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."
Answer Spring Boot and Thymeleaf engineering questions
This question evaluates a developer's competency with Spring Boot and Thymeleaf, covering debugging memory and session issues, designing dependency st...
Explain virtual machines and concurrency basics
Topics Answer at a senior-engineer depth. Use diagrams or step-by-step reasoning as needed. 1) Virtual machines (VMs) - What is a VM and what problem ...
Design a Recipe Manager
Design an in-memory recipe manager with four levels of functionality. No UI is required; focus on clean APIs, data structures, and edge-case handling....
Implement matrix transforms and discuss eigenvalues
This question evaluates understanding of matrix manipulation and numerical linear algebra, including in-place matrix transforms and rotations, sparse ...
Write SQL to sum city population by name
You have four relational tables: - country(country_id, name) - state(state_id, country_id, name) - city(city_id, state_id, name) - zip(zip_code, city_...
Explain and Diagnose a Segmentation Fault
Explain and Diagnose a Segmentation Fault Explain what a segmentation fault represents in a native program, how it relates to virtual-memory protectio...
Implement an iOS scrollable grid with navigation
This question evaluates a candidate's proficiency with iOS UI layout and interaction, including grid layout and maintaining square cells, state manage...
Explain Linux Command Execution, Filesystems, and Isolation
Explain Linux Command Execution, Filesystems, and Isolation Walk through the operating-system mechanisms behind common Linux commands and isolation ch...
Model an Extensible Employee Cost Calculator
Design an object model and calculation API for the total cost of an employee. Total cost has four components: 1. Base salary from the employee record....
Improve concurrency beyond a single lock
This question evaluates mastery of concurrent programming and synchronization concepts, focusing on correctness versus performance trade-offs when pro...
Design a Rolling Event Counter
Design an in-memory rolling event counter. The counter should support two operations: - record(timestamp): record one event at the given timestamp, me...
Explain storing files to disk with concurrency
This question evaluates systems programming concepts (OS I/O, page cache, fsync semantics) and Java concurrency mechanisms (thread-safety, synchroniza...
How would you improve AI-generated code?
During a pair-programming interview, you wrote the rover simulator code using an AI coding assistant. The code works for the basic examples, but the i...
Build an emoji blaster animation on iOS
iOS "Blaster" App: Press-and-Hold Emoji Projectiles Problem Build a minimal iOS app with a button fixed at the bottom. While the user presses and hold...
Implement a blog feed with fetching and state
This question evaluates client-side React skills including state management, asynchronous data fetching, optimistic UI updates, and deterministic sort...
Explain container image flow in CI/CD
Scenario Walk through what happens in a typical CI/CD pipeline that builds and deploys a containerized service. Questions 1. During CI, how is a conta...
Design follow/follower classes
This question evaluates object-oriented design and data-structure modeling skills for directed graphs, testing competency in representing follow relat...
Explain SystemVerilog verification concepts and write constraints
Answer the following SystemVerilog / DV questions. Use short explanations and, where appropriate, show small SV code snippets. 1) Concurrency: Explain...
Debug and mitigate a CPU spike incident
Production Debugging: CPU Spike Incident (Open-Ended) You are on-call for a backend service. An alert fires: CPU usage suddenly spikes on the service’...
Design and implement core Tetris game logic
Implement the core logic of the Tetris game in a way that can run in a terminal (no graphical UI required). Requirements: - Board/grid: standard size ...