• Troubleshoot private cloud deployments based on OpenStack, Kubernetes, Mirantis Container Runtime (MCR), and related cloud technologies, detecting, reporting, and resolving complex issues across the stack. • Provide high-tier support for critical product issues escalated by peers or management, including leading high-severity incident calls and coordinating resolution efforts across multiple teams. • Act as a shift-level technical leader, maintaining awareness of platform health, responding to alerts, and proactively managing emerging issues within customer environments. • Perform cluster upgrades and lifecycle operations as new releases become available, ensuring minimal disruption and clear communication throughout the process. • Communicate urgently, clearly, and in detail with customers during incidents, providing accurate status updates and guiding them through troubleshooting and resolution. • Own escalations end-to-end by routing issues to the appropriate teams, including OpenStack, Ceph and storage, networking, hardware, and infrastructure, while maintaining accountability and follow-through. • Lead incident management efforts by structuring outage calls, distinguishing root cause from contributing factors, documenting findings, and driving corrective actions to completion. • Reproduce customer issues in internal lab environments, validate defects, and provide detailed diagnostics and reproduction steps to development teams. • Work closely with engineering teams to review customer issues, suggest improvements, identify potential product defects, and track fixes through delivery.