Anthropic Software Engineer System Design Interview Questions
Practice 37 real System Design interview questions for Software Engineer roles at Anthropic.
"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 a Concurrent Image Processing Service
Design a Concurrent Image Processing Service Design an image-processing service in two stages. First, support one processor safely. Then scale to mult...
Design an LLM Request Batching System
Design an LLM Request Batching System A model-inference service sits in front of a fleet of GPUs. Each individual user request carries one input strin...
Find a Distributed Mode Efficiently
Find a Distributed Mode Efficiently A large multiset is partitioned across ten workers. Find the value with the highest total frequency across all wor...
Design a Distributed Rate Limiter
Design a Distributed Rate Limiter Design a rate limiter that enforces a per-client request quota (for example, "at most 100 requests per minute per AP...
Design a prompt playground
Design a prompt playground for developers and prompt engineers. The product lets users write prompts, choose model settings, run prompts against AI mo...
Design a Prompt Playground
Design a Prompt Playground The source reports a full-stack Prompt Playground system-design interview covering product features, UI, architecture, and ...
Design a Prompt Playground
Design a Prompt Playground (ChatGPT / Claude Playground) Design a "prompt playground" web product: an interactive surface where a developer types a pr...
Design a Prompt Sharing Product
Design a Prompt Sharing Product The source separately reports a product-design interview about prompt sharing, including user flow, database schema, s...
Design a One-on-One Chat Service
This question evaluates the ability to design a scalable, real-time one-on-one messaging service, probing distributed systems concepts, data modeling,...
Design Instagram (Feed, Photos, and Friend Recommendations)
Design Instagram (Feed, Photos, and Friend Recommendations) Design the backend for a photo-sharing social network like Instagram. Users follow other u...
Scale Duplicate File Detection
This question evaluates system-design, performance-diagnosis, and distributed-systems competencies, focusing on identifying bottlenecks through measur...
Design a Crash-Resilient LRU Cache
You have an in-memory LRU cache with fixed capacity $N$ and the standard get(key) / put(key, value) operations, both $O(1)$ (a hash map plus a doubly ...
Design An AI Playground For Very Large Prompts
Design an AI playground that lets users create, edit, run, and revisit prompts. The interviewer is especially interested in how the system handles ver...
How to stream a large file to 1000 hosts fastest
This question evaluates system design and distributed-systems skills, especially bandwidth and bottleneck analysis, replication and pipelining trade-o...
Design guardrails and fallback for LLM reliability
This question evaluates a candidate's ability to design safety and reliability layers for LLM-driven production systems, covering guardrails, input/ou...
Review and Improve a Flawed Design Document
Review and Improve a Flawed Design Document You are given a design document for a system that has important omissions or unsafe assumptions. Review it...
Design One-to-One Chat
Design a scalable one-to-one chat system. Scope: - Only direct one-to-one messaging is required. - Group chat, public channels, workspace features, an...
Design distributed median and mode
Design a Distributed System for Global Median and Global Mode at Massive Scale Context You are designing a distributed analytics system that computes ...
Design a concurrent web crawler
System Design: Concurrent Web Crawler (Threads) Design and implement a basic web crawler that fetches pages concurrently using a thread executor (e.g....
Design a scalable web crawler
Design a Scalable Web Crawler Design a production-ready web crawler that discovers and downloads publicly accessible web pages at internet scale. The ...