Senior Site Reliability Engineer - Storage Platforms

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. We are seeking a highly experienced Senior Site Reliability Engineer – Storage Platforms to design, implement, and support Software Defined Storage (SDS) and Kubernetes platforms in a private cloud environment. This role focuses on scalability, resilience, automation, and performance using Infrastructure-as-Code and GitOps practices. This is a deeply technical role requiring expert-level understanding of Software Defined Storage, Kubernetes, and extensive working knowledge on Linux Operating systems. You will also collaborate with platform and SRE teams to maintain secure, performant, and multi-tenant-isolated services that serve high-throughput, mission-critical applications. Key Responsibilities • Design, implement, and operate large-scale Software Defined Storage architectures across private and public cloud regions within ITIL methodology. • Deploy and support enterprise storage platforms (Pure Storage, HPE, NetApp) and SDS solutions (Ceph, Longhorn). • Build self-service storage workflows for Kubernetes CSI and OpenStack consumers (VM and Baremetal). • Develop Infrastructure-as-Code using Ansible, Terraform, Helm and Git, with Python/Bash automation. • Implement CI/CD pipelines for infrastructure updates, patching, upgrades, testing, and rollback. • Build observability, alerting, and auto-remediation using GitOps and tools such as Prometheus, Loki, and Grafana. • Architect and maintain high availability, disaster recovery, and scale-out infrastructure. • Develop and review high-level and low-level design documents for storage infrastructure • Perform deep troubleshooting across storage, Kubernetes, hypervisors, networking, and Linux systems . • Participate in on-call rotations , incident response, and root cause analysis. • Collaborate globally on change management , documentation, and operational best practices. Minimum Qualifications • 6+ years of experience managing enterprise storage and Kubernetes platforms on Linux. • Strong hands-on experience with SDS solutions (Ceph, Longhorn) and storage migrations from legacy systems. • Experience with block, file, and object storage , including Fibre Channel and IP-based protocols. • Experience with NVMe-oF or iSCSI fabrics. • Expert knowledge of Kubernetes and Linux systems (Ubuntu, RHEL/CentOS). • Proficiency with Infrastructure-as-Code (IaC) (Ansible, Terraform). • Strong scripting skills in Python and Bash (Golang (GO) a plus). • Strong working knowledge of Enterprise DNS and integrations with Kubernetes • Experience operating 24x7 mission-critical production environments . • Hands-on experience with KVM hypervisors (Suse Harvester, OpenStack) . • Strong written and verbal communication skills. • Proficiency with Git, CI/CD pipelines, and automated testing frameworks • Ability to write technical documentation and contribute to community wikis or knowledge bases. • Bachelor’s degree in computer science or equivalent professional experience. Preferred Qualifications • OpenStack Cinder multi-backend administration. • Backup platforms (Rubrik). • Understanding of CIS/NIST security and infrastructure lifecycle management. • ITIL Foundation/advanced certifications in support of ITSM standard methodology. • Background in telco, edge cloud, or large enterprise environments. • CNCF Certified Kubernetes Administrator (CKA), Cer