Machine Learning Engineer Software Engineering Fundamentals Interview Questions
Practice 19 real Software Engineering Fundamentals interview questions for Machine Learning Engineer roles. From companies including OpenAI, Microsoft, Anthropic, Applied, Capital One.
"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."
Design an Extensible Simulation Engine
Design and implement an object-oriented simulation framework for a two-player, turn-based game similar to tic-tac-toe. The system should initialize ga...
Analyze matrix multiplication complexity
You are asked in an ML coding interview: Given two dense matrices A and B, where A has shape (m, n) and B has shape (n, p), you compute C = A @ B (sta...
Explain KV cache in Transformer inference
Question In Transformer-based language model inference, what is a key-value (KV) cache? Explain: - What gets cached (tensors, shapes at a high level) ...
Explain Python and Systems Fundamentals
Answer the following software engineering fundamentals questions: 1. A production system has become very slow. How would you detect the bottleneck, me...
How do you interpolate in 3D?
Given two points in 3D space, p0 = (x0, y0, z0) and p1 = (x1, y1, z1), how do you compute a point between them using interpolation? Define the interpo...
Explain multithreading vs multiprocessing
In the context of implementing a crawler, answer the following: 1. What is the difference between multithreading and multiprocessing? 2. How do these ...
Design Ordered CUDA Reduction
In CUDA, a parallel reduction can produce different results if the combination order is not fixed, especially for floating-point arithmetic where addi...
What are processes vs threads?
Question Explain the difference between multiprocessing and multithreading in the context of building concurrent applications. Cover the following: - ...
Explain what torch.distributed.barrier does
Question In PyTorch distributed training, what does torch.distributed.barrier() do? Follow-ups - Give an example of when you would use it. - What are ...
Compute precision/recall from a flaky top-k API
You have 10 image files. Each file has a ground-truth label indicating whether it contains a dog. You can call an API like searchDogs(k) which is inte...
Explain a project deeply
Prepare for a deep technical retrospective on one of your past projects. The interviewer may ask you to explain: - the problem you were solving - your...
Analyze Complexity and Probability Basics
Answer the following fundamentals questions: 1. What is the average-case and worst-case time complexity of deleting an entry from a hash map? 2. For a...
Build an LLM-driven text-game agent
You are given a terminal-based text game and a several-hundred-line Python baseline that uses hand-written heuristic rules to choose actions. Replace ...
How would you improve card-type detection?
Scenario You have a service that needs to determine a credit/debit card network/type (e.g., Visa, Mastercard, AmEx, Discover, etc.) from the card numb...
Demonstrate Git and build workflow
End-to-End Git and Tooling Workflow (Feature Branch + CI) Context You are given a repository URL and asked to demonstrate a pragmatic, reproducible wo...
Debug and scale a PyTorch training loop
You are given a PyTorch training script for a CIFAR-10 image classifier that either: - does not converge (accuracy stays near random), or - becomes un...
Debug a Transformer bug in an unfamiliar repo
You are given an unfamiliar GitHub repository that implements a Transformer model. The interviewer claims there is a bug causing one of the following ...
Explain Transformer, GPT vs BERT, and PR metrics
Answer the following conceptual questions: 1. Transformer architecture - Describe the main components of a Transformer block and what each part doe...
Design concurrent expiring job registry
Design (and discuss how you would implement) an in-memory job registry that supports concurrent access. Each job has a unique jobId and an expiration ...