Anu Lekshmikutty Sasidharan

• Developed technical requirement documentation for new Big Data eco-system.
• Design and build new CDP based Hadoop cluster from scratch.
• Implement authentication and authorization for cluster using Kerberos.
• Setup Auto-TLS for cluster and implement Data at rest encryption.
• Setup TLS security for wired communication of Hadoop cluster
• Migrate data from existing cluster to new cluster(CDP sidecar migration).
• Supporting Job migration team by providing required Ranger policy creation and administration.
• Successfully Implemented DEV, UAT, PROD and DR Cluster.

• handled clusters of more than 7k nodes.
• Complex task automations using Shell and Python scripts
• Hands on Experience in Cloudera Data Platform(CDP)
• Implementation and support of Enterprise Hadoop environment.
• Multi tenant Cluster implementation and administration.
• Static and dynamic pool configuration and maintenance for multi-tenant cluster.
• Spearheaded day-to-day activities of Hadoop Clusters.
• Engineered Analysis and optimization of workloads, performance monitoring and tuning.
• Commissioning and Decommissioning of nodes, Cluster Rebalance, Upgrade and Patching.
• File system management and monitoring.

• Analyze data model and implement security on Hadoop Platform.
• Installation, maintenance and optimization of Hadoop security software [Kerberos (Active Directory & MIT), TLS/SSL, Sentry, Knox, Ranger, Encryption (At Rest and Motion)].
• HDFS and HBase ACL management, HIVE ACL administration using sentry (CLI using beeline and GUI using HUE).
• Hadoop Cluster encryption (Navigator Encryption- Data at rest encryption and on motion).
• Periodic backups of Hadoop system using various techniques like DistCp, BDR, and Snapshots.
• Inter cluster data migration across different datacenter using Cloudera BDR process.
• Disaster Recovery Cluster planning and administration using Cloudera standard BDR (Backup and Disaster Recovery) process.
• Automation of Cluster implementation and administration using Puppet & Foreman.
• Cluster evaluation using python scripting used for pre and post patching.

• Identified issues, analyzed information and provided solutions to problems.
• Learned and adapted quickly to new technology and software applications.
• Proven ability to develop and implement creative solutions to complex problems.
• Participated in team projects, demonstrating an ability to work collaboratively and effectively.
• Demonstrated respect, friendliness and willingness to help wherever needed.
• Strengthened communication skills through regular interactions with others.
• Gained strong leadership skills by managing projects from start to finish.
• Resolved problems, improved operations and provided exceptional service.

Automation of Hadoop cluster maintenance activity using various shell and python scripts.
Cluster evaluation using python scripting used for pre and post patching.
Report generation using various tools like Excel
Inter cluster data migration across different datacentres using the Cloudera BDR process.
Disaster Recovery Cluster planning and administration using Cloudera standard BDR (Backup and Disaster Recovery) process

Hadoop cluster implementation and administration.
Spearheaded the Hadoop cluster run time activities like upgrading and patching.
Automation of Hadoop cluster maintenance activity using shell scripts.
Cluster evaluation using python scripting used for pre and post patching.