 Experience with Amazon AWS Cloud Administration which includes services like: EC2, S3, EBS, EMR, VPC, ELB, AMI, SNS, IAM, Auto scaling, Cloud Watch, Cloud Trail, Cloud Formation, Trusted Advisory, Security Groups.  Experience in metric/audit pipeline flow of application data ingestion involved in Kafka, EMR, ElasticSearch, Kibana, Apache Spark, Influxdb and Grafana.  Launching AWS EC2 instances using configuration management tool terraform.  Setup AWS EMR Elastic Map Reduce cluster for different applications in multiple environments. Launch apache spark on EMR cluster and monitor using spark history server, ganglia.  Troubleshooting the network flow in different zones using VPC flow logs. Setting up Elastic search 6.2 and 5.5 cluster on AWS VPC for production and staging environments using terraform.  Created indexes on kibana and worked on creating different grok filter patterns for logstash. Created various visualisations and dashboards on kibana based on requirement.  Setup multiple logstash instances on different environments with terraform and docker containers using coreOS. Create docker file and re-use the image from docker hub registry for installing logstash service using Infrastructure as a code with terraform. Setting up Grafana v4.4, v5.0 datasources and dashboards with different use cases for realtime and aggregation with templating variables.  Integrated Grafana with slack using webhook and setup alerts on Grafana. Setup AWS cloudwatch system check, instance check alerts based on various thresholds.  Configured S3 buckets with various life cycle policies to archive the infrequently accessed data to storage classes based on requirement. Created snapshots to take backups of the volumes and also images to store launch configurations of the EC2 instances. Configured Elastic Load Balancers with EC2 Auto Scaling groups Worked on utilization of openstack elastic/ steel cloud instances with terraform.

 Supported for implementing multiple data center ( Multi site) project Install, upgrade weblogic 10.3 to 10.3.6 Supported in installing oracle ATG environments. Supported for migration of oracle databases. Deployments for mission critical and business critical applications Experience in supporting for the Production on call 24x7 for various high available environments and trouble shoot the issues accordingly. Install ohs, apache web servers accordingly with design Supported for administering development, UAT and performance environments Supported for weekly maintenance application code releases Work with networking team in creating the VIP configurations and submit firewall rules accordingly Built oracle coherence environment on the top of the oracle weblogic environment to hold the sessions for the high available environment.  Installed and configured Jboss application with Jboss EAP 6.2 domain mode with horizontal HA clustering.  Use various monitoring tools like wily, net QOS and internal health check tools. Monitor accordingly with wily alerts setup based on severity. Supported in deploying the packages or model files on the cognos environment. Installing security related critical patches on weblogic environments Supported in Installing/upgrading kronos patches on jboss 5.x environment. Supported for developing infrastructure related design flows to improve the high availability based on SLA and business requirements. Supported for Enterprise releases for major application changes. Supported as an Infra lead in migrating the old OC4J application with single point of failure to high available jboss environment involving in sequential phases. Used internal ticketing tools like JIRA for project tracking. Supported for the performance related load tests on the performance environments and tune the parameters accordingly.

 Understanding of the real time J2EE architecture used in Enterprise environment. It is a three tier architecture Coordinating with Middleware Administrators, Network Admins, Database Admins to resolve the performance factor of the application.  Built scripts using Ant to build the J2EE application Worked with Oracle databases and SQL queries to perform various database operations using TOAD Deploying applications on Weblogic Application server and Apache Tomcat application server. Involved in development of Web Services using JAX-WS. Creating JDBC connection pools in Weblogic application server.  Used CVS to track and maintain the different version of the application Configuring Webservices in Weblogic server for remote application access of SOAP calls to other application in different domain. Created Weblogic Domains with Clustered Managed Server for Development/QA/Performance/Production/Disaster Recovery environment and maintaining domains for different Project for each environment.• Developed and maintained unix shell scripts that monitors and zip the log files for BEA WebLogic 8.1/10.x. Created Cronjob with unix shell scripts for Monitoring of various Weblogic attributes for Production Servers which helps to send Alert through emails as well as to Pagers. Co-ordinating with network team to configure f5, viprion Load Balancers for request distribution to apache web layer and weblogic layer. Involved in setup of Jconsole on tomcat farm for monitoring and analyzing the statistics. Involved in partial setup of Wily Introscope 7.2/8.0 , installing Wily Agent on weblogic servers and creating dashboard for monitoring CPU usage and Weblogic statistic