Notes on Backend Systems and Software Architecture

Observations about reliability, complexity and technical decisions in real production systems.

I’m a software engineer focused on backend and distributed systems. I write about system behavior, architecture trade-offs and operational complexity as systems grow.

Earlier in my career I also worked in engineering leadership roles, which shaped how I think about system ownership, team boundaries and operational responsibility.

Cover Image for Why backend systems become fragile as companies grow

Systems often become fragile not because of a bad initial design, but because growth breaks the shared mental model: integrations multiply, ownership fragments, and local optimizations accumulate into implicit coupling.

Leandro Maia
Leandro Maia

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