You've probably been there. Now get ready for it.

In interviews:  "Design a real-time chat application." You know the app logic, but what about WebSockets vs HTTP polling? TCP or UDP? How does DNS work in this scenario?

At work:  Your API is slow. Is it the network? The database? How do you even debug this? What's the difference between latency and throughput anyway?

Making architecture decisions:  Should you use REST or gRPC? When does a CDN actually help? How does TLS affect performance?

Most developers learn networking backwards—picking up bits and pieces as problems arise, never building a solid foundation. This workshop gives you the structured networking knowledge that fills those gaps. Not theory for theory's sake—practical fundamentals that show up in real interviews, real projects, and real production systems.

Taught by Koushik Kothagal

Koushik Kothagal

Creator of Java Brains

Koushik has been building software and teaching developers for over two decades. Through Java Brains, he’s made programming and software concepts simple and fun for millions of learners around the world. He is passionate about helping people grow from curious beginners to confident professionals.

What you'll learn

Networking fundamentals

OSI/TCP-IP models, IP addressing, routing in cloud deployments

TCP vs UDP

When to use each and performance implications

HTTP deep dive

Methods, status codes, headers, HTTPS, and connection pooling

...and more

API protocol decisions

REST vs GraphQL vs gRPC tradeoffs and use cases

Communication patterns

Synchronous vs asynchronous, WebSockets, long-polling, SSE

gRPC and high-performance

Protocol buffers, streaming, service discovery

A Complete Networking Foundation in Two Intensive Sessions

This workshop provides a structured networking knowledge that fills the gaps in your understanding. You will learn practical fundamentals that directly apply to real interviews, projects, and production systems. Master the essential networking concepts that every senior developer needs to succeed.

Ready to Master Networking Fundamentals?

Join us for this exclusive workshop and gain a complete networking foundation in one intensive session. Take the next step to advance your system design skills and ace your interviews.

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