Sreedhar K R

•Hands-on experience in installation, configuration, supporting, and managing Hadoop 2.X and 3.X Clusters.
• Experience in building, upgrading, and supporting Hadoop cluster from scratch, built and supported more than 10's of clusters in on-prem and Azure cloud with more than 500+ nodes.
• Experience in setting up a Hadoop cluster and installing all the ecosystem components through Ambari, Cloudera Manager, and manually from the command line.
• Experience in setting up Hadoop security, Ranger and Kerberos
• Experience in set up and manage High Availability for Hadoop services/components like Name Node, Resource Manager, Druid, Ranger, KMS, Ambari views and Ops, HBase Master, Hive.
• Experience in performing commissioning and decommissioning of data nodes on the Hadoop cluster.
• Configuring Yarn Queues and other Yarn configuration in Capacity scheduler for a multi-tenant environment.
• Experience in cluster monitoring using tools like Grafana and Zeppelin
• Hands-on experience in Unix/Linux environments, which included software installations/upgrades, job automation, and other maintenance activities.
• Snowflake , Synapse and Cosmos Database Administration.

• Snowflake user creation , DDL deployments and performance management

• Experience in data migration of TBs between Hadoop clusters using DistCp, snapshots, and HBase export.
• Experience in automating Hadoop clusters scheduled shutdown and startups in the cloud to save resources.

Db2 Installation Upgrade and Management

Db2 Backup Recovery

SQL Replication

IBM Problem management, and resolution (PMR) experience with DB2 diagnostic log facility, administration notification log, trace facilities, db2 inspect, DB2 database analysis reporting tool (db2dart)

Performance Monitoring and Tuning using various tools like db2top, Optim

Database refreshes across various environments for DB2 databases using data movement utilities like Export, Import, Load and db2move.

Installation, configuration, and upgrade experience of various versions of Db2. Extensive experience with Incident, Problem and Change managements. Provide ongoing operational support, technical support and problem resolution to application team members Database refreshes across various environments for DB2 databases using data movement utilities like Export, Import, Load and db2move.

Design, Administration, management, and tuning of Hadoop environment Collaborate with the infrastructure team to coordinate OS-level patching and to identify and solve hardware related issues Cluster & Node Maintenance, Health Checks, Automation of Job Monitoring by creating alerts Assist development team in identifying the root cause of slow performing jobs / queries (HDFS)