Senior DevOps Engineer
About the role
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. This position spans the Infrastructure Reliability and Platform Engineering domains, with equal responsibility for OpenStack and Rancher-managed Kubernetes environments.
Responsibilities
- 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
- Designing, automating, and operating multi-tenant clusters across Nova, Neutron, Octavia, Manila, Cinder, Ironic, and Glance, ensuring performance, tenant isolation, and lifecycle automation
- Enabling interoperability (e.g., Magnum, storage backends, network overlays) and shared observability stacks (Prometheus, Grafana, Loki/EFK)
- Applying uniform practices across both stacks for capacity planning, high availability, resilience, incident response, and continuous improvement
Requirements
- 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
Skills
- Experience with upstream contributions to OpenStack or Kubernetes projects
Benefits
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
The range displayed reflects the minimum and maximum target for new hire salaries for the job across the United States. Your recruiter can share more about the specific compensation package during your hiring process. Additionally, the total compensation package for this position may also include an annual performance bonus, stock, and/or other applicable incentive compensation plans.
Schedule
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.