Site Reliability Engineer
Keeps production systems healthy and available by defining service objectives, building observability, and making infrastructure failure boring.
What the role involves
- Define and defend service level objectives and error budgets with product teams
- Build dashboards, alerts and on-call rotations that surface real user impact
- Run incident response, write post-mortems and land durable follow-up actions
- Reduce toil through automation and capacity engineering
- Lead blameless post-incident reviews and share learning across teams
Core skills
- Linux System Administration (level 5/5)
- Observability (Prometheus / Grafana) (level 4/5)
- Incident Response & Post-Mortems (level 4/5)
- Infrastructure as Code (Terraform) (level 4/5)
- Capacity Planning & Scaling (level 4/5)
- Networking & Security (VPC, DNS, TLS) (level 3/5)
- Distributed Systems (level 4/5)
Preferred skills
- Kubernetes
- Go / Python for Automation
- Chaos Engineering
Tools
Experience expected
3-6 years in SRE, DevOps or backend engineering with production ownership
Projects that prove the role
- Service level objective framework adopted across five product teams
- On-call noise reduction programme that halved paging volume
- Multi-region failover exercise with documented recovery objectives
Evidence to collect
- A written post-mortem you led, including follow-up actions you tracked to completion
- Before/after pager volume or MTTR numbers
- An SLO dashboard you can walk through
What the interview covers
- Defining an SLO for a service with no historical data
- Walking through a real incident, what you saw and what you changed
- Eliminating a source of toil without hiding necessary work
- Capacity planning ahead of a known demand event
How the role progresses
- Systems Administrator
- DevOps Engineer
- Site Reliability Engineer
- Staff SRE
- Director of Reliability
Certifications that carry weight
- Certified Kubernetes Administrator (CKA)
- HashiCorp Certified Terraform Associate
- AWS Certified Solutions Architect Professional
Related roles
- cloud-devops-engineer
- cybersecurity-analyst
- software-engineer
Turn this into a plan
Inside CareerDev4AI, choosing this role generates a roadmap of the skills, projects and milestones that move you towards it.