New Grad Software Engineer Interview Questions
New grad software engineer loops are the most algorithm-heavy interviews you'll face: typically two to four coding rounds plus a behavioral, with medium-difficulty data structures and algorithms doing most of the work. These questions were reported by candidates interviewing for new grad and entry-level SWE roles, so they're calibrated to that bar — harder than intern, lighter on system design than mid-level. The skill that carries you through is pattern recognition: spotting a BFS, a sliding window, or a backtracking problem within seconds of reading the prompt. There are 50+ real, recently reported new grad SWE questions here, and most come with a detailed solution that walks through the approach and complexity, not just the final code.
"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."
Implement a Unique Pointer and Vector
You are interviewing for a new-grad C++ software engineering role. Implement simplified versions of two common C++ standard-library abstractions, Uniq...
Design an In-Memory Pub-Sub Model
Design an object-oriented, in-memory publish-subscribe model. Requirements: - A publisher can publish a message to a topic. - A subscriber can subscri...
Detect and Break a Cycle in a Singly Linked List
You are given the head of a singly linked list. The list may or may not contain a cycle: somewhere in the list, one node's next pointer may point back...
Design multi-region banking data synchronization
System design: Global bank with multi-region data consistency A digital bank operates in multiple geographic regions (e.g., EU, US, APAC). Users can l...
Minimum Bills and Coins to Make Change
You are building the change-dispensing logic for a self-checkout cash register. Given a purchase change amount (in dollars, e.g. 6.35), compute the mi...
Caesar Cipher with Translation-Table Optimization
Implement a Caesar cipher. Given a string text and an integer shift, return a new string in which every alphabetic character is rotated forward by shi...
Inventory Allocation by Bid Priority
Inventory Allocation by Bid Priority You run a fulfillment system that distributes a limited pool of identical items among competing customer requests...
Minimum Drone Delivery Time on a Ring of Hubs
A fleet operator runs a single delivery drone over a set of m hubs arranged in a circle (a ring). The hubs are numbered 1 through m in clockwise order...
Explain DB concurrency, debugging slowness, DDD and CQRS
Backend fundamentals: concurrency, performance investigation, and architecture terms Answer the following backend questions: 1. How do databases handl...
How Would You Optimize a Program
You are given an existing program that produces correct results but is too slow in production. Describe a structured plan to optimize it. Your answer ...
Design a smartwatch sensor subsystem
You are designing the sensing subsystem for a health-focused smartwatch. Describe how you would take the product from requirements to production. Your...
Describe teamwork and personal achievements
The interview included several behavioral questions: 1. Tell me about a time you helped a teammate who was underperforming. 2. Describe the most chall...
Design a TCP Discord-like chat server
Design a Discord-like chat server that accepts multiple clients over raw TCP (e.g., test via PuTTY/telnet). Functional requirements: - Clients connect...
Describe Growth, Mistakes, and Obstacles
You are interviewing for a new-grad Software Engineer role at a Chicago-based firm. After a technical screen, you reach a behavioral round run by an e...
Design Broadcast Scheduling APIs
Design a broadcast messaging service for companies. Requirements: - Each company has a set of subscribers. - A client can schedule a message to be bro...
Implement a random fixed-size load balancer
Problem: Build a simple load balancer Implement a minimal in-memory load balancer that routes each incoming request to one backend node chosen uniform...
Demonstrate effective AI-assisted coding workflow
In an interview where you are allowed to use an AI coding assistant, you are given a large scoped task (e.g., implementing a TCP chat server). The int...
Reviewing a Freight-Scheduler Codebase: Bugs, Data Structures, and Concurrency
You have just finished implementing process_order(...) inside a large provided codebase for a freight-scheduling system (this is the review stage of a...
Explain Compiler Pipeline and LLVM Backend
You are interviewing for a compiler engineer role. Explain the major stages of a modern compiler, then discuss common optimization techniques and how ...
Design Robust Large-Input Processing
The string-reduction algorithm above is now part of a backend service. Each job reads a text object from S3-compatible storage, applies the transforma...