Available for interesting reliability problems

Make production
boring.

Practical notes on keeping production calm, observable, and ready for what breaks next.

Chaos engineering visualization showing a controlled fault injection rerouting traffic across distributed systems

Selected projects

Systems worth leaving better.

Selected dispatches

From the field

04 notes

The operating record

Experience that compounds.

Start a conversation

Have a system to steady?

Tell me what is noisy, fragile, or about to scale. I’ll reply at the address in the footer.

Email the operator
01

The operator

Reliable systems start with clear thinking.

I’m Diego Castillo, a Site Reliability Engineer writing about the work between a good dashboard and a calm on-call shift.

Quick bio

I help teams make production safer to change, easier to understand, and calmer to operate.

Say hello
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99.95%the kind of availability
worth designing for