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), Certified Kubernetes Security Specialist (CKS) or Red Hat specialist in Ceph Storage Administrator (EX125) certifications. * Master's degree in computer science, IT, Engineering, or a related field preferred; equivalent experience and relevant industry certifications will also be considered. **What You'll Get** * A collaborative team that's deeply invested in infrastructure excellence. * Complex technical challenges that require creative, scalable solutions. * The opportunity to shape a next-generation private cloud platform-built reliability. * Access to the latest tools, frameworks, and upstream project developments. **Skills and Attributes:** * **Analytical Thinking & Problem Solving:** Demonstrated ability to translate complex, cross-domain requirements into scalable and resilient cloud infrastructure and automation solutions. * **Collaboration & Teamwork:** Strong interpersonal and communication skills with a proven track record of effective collaboration across multidisciplinary teams, including developers, operations, security, and product stakeholders. * **Mentorship & Leadership:** Passionate about knowledge-sharing and mentorship, with experience guiding junior engineers and fostering a team culture of continuous learning, innovation, and technical excellence in cloud engineering and DevOps practices. 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. Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at accommodations@five9.com to request an accommodation. Requests will be handled confidentially and in accordance with applicable law. 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.