Ganesh Sawant

ROLE OVERVIEW
Managed large-scale OpenStack-based private cloud environments supporting mission-critical telecom workloads (VoLTE, IMS, PACO) across 20+ geographically distributed data centers.

KEY RESPONSIBILITIES
• Operated and maintained 130+ OpenStack nodes (Compute, Controller, Network, Ceph) ensuring 24×7 availability and performance stability.
• Performed cloud health validation, API checks, service recovery, and root cause analysis across Nova, Neutron, Keystone, and Glance services.
• Executed live migrations, flavor lifecycle management, hypervisor maintenance, and hyperconverged operations with minimal production impact.
• Led Ceph storage administration including OSD replacement, pool/PG balancing, cluster recovery, expansion planning, and performance optimization.
• Developed Ansible-based automation for node validation, service orchestration, log collection, and patch workflows, reducing manual effort by ~70%.
• Managed Neutron networking components including VLAN configuration, routing, floating IP management, and L2/L3 issue resolution.
• Maintained controller high availability stack (Pacemaker, Corosync, HAProxy) and handled failover operations.
• Collaborated with OEM vendors (Nokia, Ericsson, Cisco, Mavenir) for hardware, firmware, and zero-downtime maintenance activities.
• Designed and optimized monitoring dashboards using Grafana, Prometheus, and Nagios, reducing false alerts by ~60%.
• Contributed to hybrid Azure–OpenStack integration initiatives and cloud modernization efforts.
• Authored 100+ MOPs/SOPs to standardize operational procedures and audit compliance.
• Mentored L2/L3 engineers as OpenStack SME, strengthening troubleshooting and automation capabilities within the team.

KEY ACHIEVEMENTS
• Maintained 95%+ SLA across 12,000+ production incidents.
• Built API-driven Cloud Health Check dashboard enabling real-time telemetry visibility and proactive forecasting.
• Delivered role-based Ansible automation saving ~300+ engineering hours per month.
• Led controller node recovery during major upgrade cycle with zero customer impact.
• Awarded “Dream Team Award” for cross-domain collaboration and infrastructure reliability improvements.

• Supported backend operations of OpenStack clusters, handling VM lifecycle operations (provisioning, resizing, live migration, decommissioning) and tenant resource allocation.
• Performed controller service validation, database synchronization checks, and compute node onboarding activities.
• Developed basic shell-based monitoring scripts for Nova and Neutron services with cron-based scheduling to improve service visibility.
• Monitored Ceph storage health including replication status, I/O utilization, and OSD recovery tracking.
• Participated in OpenStack upgrade cycles, gaining exposure to service dependencies and cluster orchestration processes.