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. , 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, FedRAMP, SOC2, FIPS, CIS, NIST standards. Upstream contributions to OpenStack or Kubernetes projects. Work Location: This role is fully remote for candidates who reside outside the 30 mile radius of one of our offices.

For candidates who reside within a 30 mile radius of one of our offices, this role is Hybrid and would require 3 days a week (T, W, TH) in office.

Pay Transparency

during the entire recruitment process.

Compensation

packages are based on several factors that are unique to each candidate including, but not limited to: skill set, depth of experience, certifications, and specific work location. The range displayed reflects the minimum and maximum target for new hire salaries for the job across the United States.

package during your hiring process.

package for this position may also include an annual performance bonus, stock, and/or other applicable incentive

plans. Our total reward package also includes: Health, dental, and vision coverage, beginning on the first day of employment.

Senior DevOps Engineer