The Cloud Engineers

The Cloud Engineers

Building Production-Grade API Security

Lefteris Karageorgiou's avatar
Lefteris Karageorgiou
Apr 22, 2026
∙ Paid

We built a customer-facing API processing thousands of transactions per minute. The challenge wasn’t just handling the volume, it was protecting against attacks while maintaining performance. Every blocked malicious request saves money and prevents potential breaches, but every millisecond of latency added by security layers impacts user experience.

User's avatar

Continue reading this post for free, courtesy of Lefteris Karageorgiou.

Or purchase a paid subscription.
© 2026 Lefteris Karageorgiou · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture