Site Reliability Engineer: Reliability & Observability
castelionAllen (TX)
Site Reliability Engineer: Reliability & Observability
Posted 3 days ago
castelionAllen (TX)
SENIORITY
Lead
About the role
Castelion seeks a Site Reliability Engineer to own the reliability, performance, observability, and operational health of Castelion's critical engineering systems. These systems support software development, CI/CD, artifact distribution, test infrastructure, developer workflows, and other services that engineers depend on to deliver hardware and software. This role is the missing reliability piece of an existing high-performing engineering organization.
Before you apply
Applying takes about a minute. These four things decide how fast it moves after that.
Your profile is current
It's what we read first. Occupations, seniority and locations matter more than a long history.
Two examples you can talk through
Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.
A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.