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."
Debug GPU Resource Allocation
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Design Historical Visit Tracker
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Debug and harden a driver-selection component
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Explain JS types, Promises, Maps, WebSockets
Explain JS types, Promises, Maps, WebSockets JavaScript Types, Promises, Collections, and WebSocket Ordering You are interviewing for a software engin...
Explain Vector, Linked List, and Polymorphism
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Build a sortable, searchable movie list UI
This question evaluates frontend engineering competencies such as UI component architecture, state management, asynchronous data fetching, client-side...
Compare Stack and Heap Memory and Probe Stack Direction
Compare Stack and Heap Memory and Probe Stack Direction Explain the practical differences between automatic storage commonly implemented with a call s...
Design automated regression tests for an API
This question evaluates proficiency in designing automated regression test suites for RESTful APIs, performance verification and monitoring, end-to-en...
Plan QA testing for a new feature
This question evaluates competency in QA test planning, test strategy and prioritization, cross-functional coordination with development and product, ...
Explain Redis/MySQL internals and containers vs VMs
This question evaluates understanding of backend system internals and operational tooling—specifically in-memory datastore architecture (Redis), relat...
Debug Kubernetes crashes and review Python ingestion script
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Design a banking ledger for deposits/withdrawals
This question evaluates a candidate's competency in monetary data modeling, concurrency control, idempotency, and maintaining transactional correctnes...
Set up a Python LLM dev environment
Task: Reproducible Local Python Environment for a Mistral Agent You are to set up a clean, fully reproducible local Python environment to develop a sm...
Build a React color multi-select dropdown UI
Implement a React UI that lets users multi-select colors from a dropdown and view details. You are given a JavaScript object where each key is a color...
Debug distributed-system performance problems
You are asked: “If a distributed system has a performance problem (latency/throughput regression), how would you approach it?” Describe a practical, s...
Describe IC packaging tool experience and ramp-up
This question evaluates hands-on familiarity with IC packaging layout and verification tools, the ability to become productive within an established E...
Troubleshoot a website outage with disk full
This question evaluates operational incident response and systems troubleshooting skills, including understanding of disk/storage behavior, log and me...
Explain what happens when you run ls
In Linux, explain the end-to-end flow of what happens when a user types ls in a shell and presses Enter. Include: - What the shell does - How the exec...
Design a social network with snapshots
This question evaluates understanding of data structures, graph representations, immutability and snapshot/versioning strategies for in-memory systems...
Handle payment-service outages
You own a service that computes courier payouts and then submits payout requests to a downstream payment processor. What should your system do if the ...