What does a Site Reliability Engineer (SRE) do?

A Site Reliability Engineer keeps production systems reliable by setting measurable reliability targets, automating operational work, and responding to incidents when services degrade. They spend their time writing code and tooling that prevents outages, rather than manually firefighting, and they hold the line on the balance between shipping fast and staying stable.

What are the main responsibilities of a Site Reliability Engineer (SRE)?

The core duties are defining SLOs and error budgets, building observability and alerting, and leading incident response with blameless postmortems. SREs also automate deployments and recovery, plan capacity for growth, and work with product teams so reliability is designed in rather than bolted on later.

What skills does a Site Reliability Engineer (SRE) need?

Strong coding skills and deep Linux and container knowledge are non-negotiable, since the job is software engineering applied to operations. Fluency with infrastructure-as-code, observability stacks, and cloud platforms matters, and so does calm judgment during high-pressure incidents. The best SREs think in systems and probabilities, not one-off fixes.

What should a Site Reliability Engineer (SRE) job description include?

A strong SRE job description opens with a clear definition and brief, then lists the key duties, full responsibilities, and required experience and skills. Naming your stack (Kubernetes, cloud provider, observability tools) and your on-call expectations helps the right candidates self-select and sets honest expectations.

Who does a Site Reliability Engineer (SRE) work with?

SREs work closely with product and platform engineering teams, and coordinate with security, infrastructure, and support during incidents. They often report into an engineering or platform leader and act as the bridge between developers shipping features and the systems that must keep running.

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Site Reliability Engineer (SRE) Job Description

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About the role

We are hiring a Site Reliability Engineer (SRE) to keep our production platform fast, available, and resilient as it scales. You will own service level objectives, build the automation and observability that catch problems before customers do, and lead incident response when things break. This role is a fit for someone who codes their way out of toil and treats reliability as a product feature, not an afterthought.

Key responsibilities

Define and defend SLOs and error budgets for critical services
Automate away toil and reduce manual operational work
Lead incident response and drive blameless postmortems

Responsibilities

Set service level objectives and track error budgets across critical services
Build monitoring, alerting, and dashboards in tools like Prometheus, Grafana, and Datadog
Automate deployments, scaling, and recovery using Terraform, Ansible, and CI/CD pipelines
Lead on-call rotations and coordinate incident response during outages
Write blameless postmortems and track corrective actions to closure
Run capacity planning and load testing ahead of traffic spikes
Harden systems for high availability with redundancy and graceful degradation
Tune Kubernetes clusters, autoscaling, and resource limits for cost and performance
Instrument services with distributed tracing and structured logging
Partner with product engineers to build reliability into new features from the start

Requirements

Bachelor's degree in computer science, engineering, or equivalent hands-on experience
3 or more years in SRE, DevOps, or production systems engineering
Strong coding ability in a language such as Go, Python, or Rust
Deep experience operating Linux systems and container orchestration at scale
A track record of reducing incidents and improving uptime with measurable results

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