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."
Solve Timed Logical and Quantitative Reasoning Cases
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Reason About and Validate Virtual Card Transactions
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Defend a Redis Choice and Explain Database Index Trade-offs
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Select an Object by a Dynamic Integer Field
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Reason About Endianness, Ring Buffers, and Stack Behavior in Firmware
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Evaluate a Nested Predicate Expression Tree
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Build a Dual Fixed-Window Rate-Limiting Middleware
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Count Matrix Cells Whose Row and Column Neighbors Match
Given a matrix, count how many cells have the property that every other value in the same row and every other value in the same column are all equal t...
Implement a Per-IP Sliding Window Rate Limiter
Given sorted request timestamps, matching IP addresses, a request limit, and a time-window length, return an array where 1 means the request is accept...
Model and Solve a Rectangular Jigsaw Puzzle
Model and Solve a Rectangular Jigsaw Puzzle Design an object-oriented model for a rectangular jigsaw puzzle and outline an algorithm to solve it. Use ...
Refactor a Chatbot into Clean Object-Oriented Components
Prepare for a OpenAI software engineering interview question about refactor a chatbot into clean object-oriented components. The prompt highlights pra...
Clarify and Prune an N-ary Tree to a Depth Limit
You are given a rooted N-ary tree and a nonnegative integer k. First compute the tree's maximum depth. Then discuss how to delete a minimum set of nod...
Design a Bank Account OOP Simulation with Transfers, Payments, and Merges
Design an object-oriented banking simulation. Accounts can be created, balances can be queried, money can be transferred, payments can be recorded, an...
Sort One Hundred Million Digits
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Design Extensible Undo and Redo for a Spreadsheet
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Implement DeleteTree With Limited Filesystem APIs
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