Staff Site Reliability Engineer

Horizon3

2d•$199,750 - $270,000•Remote

About The Position

Horizon3 is seeking a hands-on Staff Site Reliability Engineer to own and evolve the reliability strategy, operating model, and engineering-wide standards supporting our platform. This is a foundational role for an experienced engineer who will set technical direction across teams, lead the highest-impact reliability initiatives, and establish the practices and systems that enable engineering to operate production services safely.

Requirements

Experience designing, operating, and troubleshooting large scale distributed systems in production environments.
Deep knowledge of reliability engineering, observability, incident management, and production operations, with demonstrated ability to turn that knowledge into standards and practices adopted by others
Experience in establishing SLIs, SLOs, actionable alerts, observability, and service ownership.
Backend experience building backend systems and automation that reduce optional toil, strengthen safeguards, and operational efficiency.
Experience in leading high severity incidents and improving incident response programs.
Excellent written and verbal communication skills including technical designs, runbooks, postmortems, and operational documentation.
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.

Responsibilities

Own and evolve the engineering-wide SRE strategy, operating model, and reliability standards, aligning them to customer impact, business priorities, and risk.
Lead cross-functional alignment across Infrastructure, product, service, security, and business stakeholders to improve reliability, observability, incident response, and operational readiness across multiple teams.
Establish an organization-wide approach to service ownership, meaningful SLIs and SLOs, and error budgets for critical customer paths and services.
Define and drive adoption of observability standards across pipelines and platform components that report on service health, performance and operational risk.
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 and help design an on-call model that is sustainable, appropriately staffed, and continuously improved.