System design interviews are often the most daunting part of the software engineering hiring process, especially for senior roles. Unlike coding rounds, these 45–60 minute sessions are open-ended, testing your ability to architect scalable, reliable, and efficient systems to solve real-world problems.
To get an offline, easily readable version of your favorite GitHub repositories, follow these steps:
Never start drawing architecture immediately. Ask clarifying questions to understand the scale.
Searching for system design resources on GitHub is effective for three reasons:
: Foundations of networks, DNS, load balancing, caching, and databases (SQL vs. NoSQL), followed by real-world case studies like video streaming and chat applications. Acing The System Design Interview Pdf Github
: A highly recommended, free 75-page PDF by Ashish Pratap Singh that covers core concepts and 30 essential system design patterns. You can find it on the ashishps1/awesome-system-design-resources GitHub page. ByteByteGo System Design 101
Memorize this template. Write it on a sticky note.
Are you currently preparing for a specific company's interview, or
If you search GitHub for “system-design,” “coding-interview,” or “system-design-primer,” several standout repositories have become canonical. Here are the most impactful: System design interviews are often the most daunting
With over 250,000 stars, this is the gold standard of system design resources. It features an extensive collection of charts, diagrams, and step-by-step breakdowns of common interview questions.
When reading through downloaded PDFs like the AlgoMaster System Design Handbook or System Design Interview: An Insider’s Guide , focus heavily on these core distributed system fundamentals:
Use a "Markdown to PDF" extension or built-in export features to generate your document.
I’ve mentored over 200 engineers for FAANG and unicorn system design interviews. Those who succeeded shared common traits: Ask clarifying questions to understand the scale
Minimizes data redistribution when caching servers are added or removed. Used in DynamoDB, Cassandra, Memcached
Adding more machines (horizontal) versus upgrading existing hardware (vertical).
: Learning to break down a massive problem into manageable services using API Gateways Service Meshes API Paradigms : A deep dive into choosing between based on the specific use case. The "Insider" Perspective
Before diving into PDFs and repos, let’s address the elephant in the room: Why is system design so hard?