Administered ~100 geographically distributed CentOS and Debian virtual servers hosted with OpenVZ.
Implemented and managed network monitoring services, distributed management and IT automation.
Monitored infrastructure using snmp, agents, plugins and log collection with OpenNMS
Managed server configurations and configuration deployments using cfEngine.
Migrated configuration management from cfEngine to Puppet and increased the scope to allow deployment and configuration of new servers with minimum manual intervention and configuration.
Detailed Description
Implemented high availability fail-over with DRBD and Heartbeat for redundant OpenVZ hosts.
Led implementation of highly availabile PostgreSQL servers hosting telecom switching/billing data for production environment
