[Hiring] Staff Site Reliability Engineer @Horizon3

Role Description

We are 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.

• 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, operational 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.

Qualifications

• 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 operational toil, strengthen safeguards, and improve 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.

Requirements

• 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

• Inclusive Team: We value diversity and promote an inclusive culture where everyone can thrive.
• Growth Opportunities: Be part of a dynamic and growing team with numerous career development opportunities.
• Innovative Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking.
• Hybrid & Remote Work: We embrace a mix of remote and hybrid work models depending on role and location, including our Chicago office, where some roles require regular in-office presence.
• Competitive Compensation: We offer competitive salary, equity and benefits. Our benefits include health, vision & dental insurance for you and your family, a flexible vacation policy, and generous parental leave.