Senior DevOps Engineer

Senior DevOps Engineer Five9 - 3.7 San Ramon, CA Job Details $90,000 - $250,300 a year 4 hours ago Qualifications OpenStack Deployment Ansible High availability solutions design Infrastructure as Code (IaC) DevOps Improving system uptime or availability Production systems SRE Terraform Argo CD Monitoring system implementation Linux DevOps automation Cloud monitoring Linux administration High availability Full Job Description Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. 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.

The role covers:

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, Loki/ELK/EFK).

Preferred Expertise:

Kubernetes :

Rancher add-ons (Fleet, Longhorn, CIS Scanning), security hardening (CKA/CKS). Advanced networking and scheduling :

VXLAN, BGP, NIC

offload, NUMA-aware scheduling, SR-IOV, and PCI passthrough.

OpenStack :

Magnum integration, Tempest/Rally for upgrades and validation.

Compliance :

PCI, Fed

RAMP, SOC2, FIPS, CIS, NIST

standards. Upstream contributions to OpenStack or Kubernetes projects. Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal.

Note:

Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.