Senior/Staff Site Reliability Engineer

The role

This person will own and evolve the engineering-wide SRE strategy, operating model, and reliability standards. They will lead cross-functional initiatives to improve reliability, observability, and incident response for the platform.

What you will do

• Own and evolve the engineering-wide SRE strategy, operating model, and reliability standards
• Lead cross-functional alignment across Infrastructure, product, service, security, and business stakeholders
• Establish an organization-wide approach to service ownership, SLIs, SLOs, and error budgets
• Define and drive adoption of observability standards across pipelines and platform components
• Set the standard for dashboards, actionable alerting, runbooks, and escalation paths
• Drive end to end complex cross-functional reliability initiatives
• Set and raise the engineering wide bar for incident management, incident command, on-call health, post-incident learning, and recovery readiness
• Shape the technical direction, operationable model, and growth path of the SRE function
• Participate in a 24/7 on-call rotation

Required qualifications

• Experience designing, operating, and troubleshooting large scale distributed systems in production environments
• Deep knowledge of reliability engineering, observability, incident management, and production operations
• Experience in establishing SLIs, SLOs, actionable alerts, observability, and service ownership
• Backend experience building backend systems and automation
• Experience in leading high severity incidents and improving incident response programs
• Excellent written and verbal communication skills
• Python and Terraform (Infrastructure as Code), or equivalent automation and infrastructure-as-code tools
• Experience with Observability tools such as Datadog, New Relic, Grafana, or equivalent platforms
• Experience operating production services in AWS and Kubernetes
• Experience with CI/CD pipelines such as Gitlab CI, ArgoCD, or GitOps workflows

Benefits

• Equity package in the form of stock options
• Health, vision & dental insurance for you and your family
• Flexible vacation policy
• Generous parental leave

About the company

Horizon3 is a remote cybersecurity company dedicated to enabling organizations to proactively find, fix and verify exploitable attack vectors. Their flagship product is the NodeZero platform.