Senior DevOps Engineer

Senior DevOps Engineer at Five9

This position spans the Infrastructure Reliability and Platform Engineering domains, with equal responsibility for OpenStack and Rancher-managed Kubernetes environments. The engineer will lead the lifecycle of both platforms, ensuring scalable, secure, and observable foundations that support mission-critical workloads.

This role defines how Five9 builds and runs both Kubernetes and OpenStack platforms at scale, ensuring parity in automation, performance, security, and observability. By bridging the two ecosystems, this engineer will enable hybrid flexibility while providing the resilient foundation on which the business depends.

Key Responsibilities

• Kubernetes (Rancher RKE2/K3s): Designing and maintaining bare-metal clusters with GitOps-driven automation (Fleet, Argo CD, Terraform, Helm), optimized for performance and secured with RBAC, network policies, and compliance guardrails.
• OpenStack: Designing, automating, and operating multi-tenant clusters across Nova, Neutron, Octavia, Manila, Cinder, Ironic, and Glance, ensuring performance, tenant isolation, and lifecycle automation.
• Cross-Platform Integration: Enabling interoperability (e.g., Magnum, storage backends, network overlays) and shared observability stacks (Prometheus, Grafana, Loki/EFK).
• SRE Principles: Applying uniform practices across both stacks for capacity planning, high availability, resilience, incident response, and continuous improvement.

Required Expertise

• 7+ years in infrastructure, platform, or SRE engineering roles.
• Certified Kubernetes Administrator (CKA)
• Hands-on mastery of both OpenStack and Rancher Kubernetes in production, with focus on automation, lifecycle management, and high availability.
• Proficiency with Terraform, Ansible, Helm, Argo CD, and scripting in Python/Go/Bash.
• Deep understanding of Linux internals and system performance.
• Proven application of SRE practices in high-stakes, always-on environments.
• Strong experience with observability platforms (Prometheus, Grafana).