Senior Site Reliability Engineer – Compute Platforms

Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. They are seeking a highly experienced Senior Site Reliability Engineer – Compute Platforms to design, implement, and support Kubernetes on baremetal and hypervisor platforms in a private cloud environment. This role involves the architecture, design, and standardization of enterprise compute and hypervisor environments, ensuring secure and high-performance services for mission-critical applications.

Responsibilities:

• Lead the architecture and design of enterprise compute and hypervisor platform solutions across hardware, OS, virtualization, cloud orchestration, and container orchestration layers
• Define standards and automation frameworks for bare metal provisioning and lifecycle management
• Design and implement Bare Metal as a Service (BMaaS) capabilities for scalable infrastructure consumption
• Architect and design Kubernetes platforms on bare metal with QoS and Affinity (ArgoCD)
• Architect and validate automated deployments of operating systems and hypervisors including Ubuntu and Harvester
• Design and maintain PXE-based provisioning environments leveraging Redfish APIs for large-scale server deployments
• 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
• Design automated workflows for server build, firmware lifecycle management, patching, and hardware validation
• Evaluate and standardize enterprise hardware platforms to meet performance, scalability, and reliability requirements
• Produce detailed high-level and low-level design documentation, build guides, and operational handoff materials
• Perform deep troubleshooting across storage, Kubernetes, hypervisors, networking, and Linux systems
• Partner with operations, network, storage, and platform teams to ensure designs are supportable and production-ready
• Participate in on-call escalation support for complex platform-related issues
• Collaborate globally on change management, documentation, and operational best practices

Requirements:

• 6+ years of experience in infrastructure engineering, platform engineering, or DevOps with a strong focus on Compute system design
• Proven experience designing and automating bare metal compute environments at scale
• Strong hands-on experience with PXE boot, network-based OS provisioning, and automated server imaging
• Experience implementing or supporting Bare Metal as a Service (BMaaS) platforms
• Practical experience using Redfish APIs for hardware provisioning, power management, and remote lifecycle operations
• Deep expertise with Ubuntu Linux in enterprise environments
• Strong Hands-on experience with KVM hypervisors (Suse Harvester, OpenStack)
• Experience designing and deploying production-grade Kubernetes clusters
• Strong background with enterprise compute hardware platforms, including Cisco UCS, Dell PowerEdge, Supermicro systems & HPE
• Proficiency with Infrastructure as Code tools (e.g., Terraform, Ansible, or similar)
• Experience building or supporting CI/CD pipelines for infrastructure and platform automation
• Strong scripting skills in Python, Bash, or similar languages
• Demonstrated ability to produce clear, structured technical design documentation
• Excellent written and verbal communication skills
• Bachelor's degree in computer science or equivalent professional experience
• OpenStack, Ubuntu KVM administration
• BareMetal as a Service (PXE, Redfish)
• Kubernetes on BareMetal
• 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
• Ubuntu Certifications, CNCF Certified Kubernetes Administrator (CKA), Certified Kubernetes Security Specialist (CKS)
• Master's degree in computer science, IT, Engineering, or a related field preferred; equivalent experience and relevant industry certifications will also be considered