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Senior / Staff Site Reliability Engineer

Horizon3

Skills

Required

  • observability
  • automation
  • incident management
  • production operations
  • leading high severity incidents
  • runbooks
  • postmortems
  • actionable alerts
  • service ownership
  • Kubernetes
  • Python
  • Terraform

Preferred

  • CI/CD
  • Gitlab
  • CI / ArgoCD / GitOps workflows
  • SRE
  • building backend systems
  • toil

Join our team as a Senior/Staff Site Reliability Engineer, where you will own and evolve the reliability strategy, operating model, and engineering-wide standards supporting our platform. This foundational role requires an experienced engineer who will set technical direction across teams, lead high-impact reliability initiatives, and establish practices and systems for safe production service operation. You will collaborate with cross-functional teams, define observability standards, drive complex reliability initiatives, and shape the technical direction of the SRE function.

About Horizon3

Enjoy a flexible work environment, growth opportunities, and an inclusive culture.

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.
  • Define and drive adoption of observability standards across pipelines and platform components that report on service health, performance and operational risk.
  • Backend experience building backend systems and automation that reduce optional toil, strengthen safeguards, and operational efficiency

Requirements

  • 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 leading high severity incidents and improving incident response programs
  • Excellent written and verbal communication skills including technical designs, runbooks, postmortems, and operational documentation
  • Experience in establishing SLIs, SLOs, actionable alerts, observability, and service ownership
  • Experience designing, operating, and troubleshooting large scale distributed systems in production environments

Experience operating production services in AWS and Kubernetes

  • 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

Preferred

  • Experience with CI/CD pipelines such as Gitlab CI, ArgoCD, or GitOps workflows

Pay

USD 199,750 - 270,000