Site Reliability Engineer (SRE)

Site Reliability Engineer (SRE) is an engineer combining programming skills with operations — originally defined by Google (2003). SRE builds and maintains highly available production systems applying software engineering principles (automation, codified ops). Key concepts: SLI/SLO/SLA, error budgets, blameless post-mortems, chaos engineering.

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SRE: Modern challenges and core competencies (2026 perspective)

SRE role is growing rapidly — in 2026 it's one of the best-paid engineering positions globally. SRE applies 'engineering approach to operations': automation, monitoring at scale, incident response, capacity planning. Difference vs DevOps: DevOps is philosophy (culture + practices), SRE is concrete engineering role with measurable metrics (SLI/SLO/error budgets).

Google SRE Book + Workbook (free online) — industry foundation. Top firms with dedicated SRE teams: Google, Meta, Netflix, Spotify, Uber, Klarna, Ericsson.

Goal

Develop SRE engineers capable of designing, deploying, and maintaining production-grade systems with 99.9%+ uptime, defining SLI/SLO, and leading blameless post-mortems.

Recommended EITT Trainings

SRE fundamentals → Kubernetes operations → Cloud at scale → Observability

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