Deployed Elasticsearch in cluster environment, Configured multiple logstash instances and created grok patterns and events processing code, Implemented filebeat on various unix systems and configured processors, Implemented winlog beat on windows systems and enabled custom applications monitoring, Implemented metric beat to collect monitoring data from logstash and elasticsearch, Onboarded aws data sources like vpc, cloudtrail, flowdata, guardduty etc., Configured kafka layer and topics to store events received from logstash, Configured the ansible playbooks to deploy elk stack, Enabled the security in elasticsearch and created users and roles, Created grok patterns and events processing code for unix related events, network syslog events, Implemented file based enrichment using translate plugin, Implemented geo enrichment, Implemented failover architecture for logstash using a custom script, Created visualizations and dashboards, Exported and Imported the dashboards, index patterns and saved searches for one instance to another instance, Configured the ELK stack with SSL, imported the signed certificates in logstash, elasticsearch and kibana, Installed and configured the opendistro security plugins