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Welcome to The Coder Cafe!

The Coder Cafe
The Coder Cafe
The Coder Cafe: Learn One Concept With Your Coffee.

AI is getting better every day. Are you? At The Coder Cafe, we serve fundamental concepts to make you an engineer that AI won’t replace. Written by a Google SWE, trusted by thousands of engineers worldwide.

Welcome to The Coder Cafe ☕

I’m Teiva Harsanyi, a software engineer at Google and author of 100 Go Mistakes. I built The Coder Cafe for engineers who want to keep growing, one concept, one coffee at a time.

I would love to get to know you better. If you have a minute, this short survey helps me understand my audience and create content that’s more useful to you.

Start Survey

Or simply hit reply and tell me about yourself. I read and respond to every email.

What’s Inside

The Coder Cafe is built around three sections:

  • Concepts: Foundational, timeless topics across programming, testing, distributed systems, reliability, and more. Designed for backend engineers, DevOps, and SREs.

  • The Coding Corner: Where we build real systems together, step by step.

  • Lattes & Stories: Personal reflections and lessons.

🔔 Notifications for each section can be configured in your settings.

Explore the Content

Browse the archives where all posts are organized by category or jump straight into some of the most-read posts:

Community

The Coder Cafe has a Discord where engineers discuss, share, and learn together. We’re currently reading Designing Data-Intensive Applications (2nd edition) as a community. Check the schedule and join us:

See you soon for your first coffee. ☕

Teiva

PS: Want to reach 6,500+ engineers? Sponsor The Coder Cafe.

© 2026 Teiva Harsanyi
548 Market Street PMB 72296, San Francisco, CA 94104