System Design Interview
guides and free resources

Platforms like Netflix and WhatsApp operate at massive scale because their systems are designed for growth, reliability, and change. System Design is the process of creating software systems that scale,...

System Design engineering as a discipline has flourished in the past two decades, and I’ve had the privilege of witnessing its explosion firsthand. Designing large-scale, distributed systems was considered a...

Imagine you’ve aced the coding rounds and impressed the interviewers with your algorithms, and now you’re facing the make-or-break moment of your tech interview—the System Design round. Your task? Design...

Meta engineers don’t just write code—they build the infrastructure that powers billions of daily interactions across Facebook, Instagram, WhatsApp, and Messenger. Acing the System Design interview is non-negotiable if you...

This guide provides a structured overview of how to design generative AI systems in an interview setting. It covers clarifying use cases and token budgets, as well as high-level architecture,...

Designing infrastructure for OpenAI differs from building a standard e-commerce backend. Traditional System Design interviews often emphasize data consistency, request throughput, and general scalability concerns. An interview for an LLM-centric...