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Answers and Guides

What Is Database Design and Which Schema Decisions Matter Most?

Database design is the process of turning application requirements into a concrete data model: tables (or collections), keys, rel…

What Are Distributed Systems and What Core Trade-offs Should You Understand?

A distributed system is a group of independent computers that coordinate over a network to act, from the user's point of view, li…

What Are Tech Interviews and How Should You Prepare for Them?

Tech interviews are multi-stage hiring processes used by software companies to assess whether you can write code, design systems,…

What Is System Design and How Do You Start Learning It?

System design is the practice of defining how a software system's components fit together — its services, data stores, caches, an…

What is Structurizr and how does it use the C4 model for software architecture diagrams?

Structurizr is a "models as code" tool for visualising, documenting, and exploring software architecture. You write Structurizr D…

How Do People Learn a Language?

People learn a language through two overlapping routes: explicit study (learning rules, vocabulary lists, and grammar explanation…

What Does Engineering at Netflix Actually Look Like?

Engineering at Netflix is a decentralized, senior-heavy model built on the company's "freedom and responsibility" culture: small …