Naga Seshi Kumar S.

Experience

• 

  Mphasis

  Dec 2010 - now

  Design Data Platforms (Data Hub and Data Lakes) for Businesses using Azure Data Factory / Databricks / Snowflake / Azure Data Explorer / KafkaWith the growing demand of Cloud Databases, most of the Customers/Clients are leaning towards Snowflake Database to ease the implementation of Complex Data in Silos. Bringing in the capability of DevOps to the Data the Snowflake makes it easy to implement the Data Ops with ease. Working as a solutions Team lead, designing and implementing systems across organizations to achieve DataOps and there by reducing the Data Operational cost.Orchestrate Fresh Graduates Training in the Organization to transform University / College Grads into Data Savvy Engineers Show less Cassandra it is! Migrating data from RDBMS to NoSQL Cassandra Cluster (DataStax)Data : Aviailable and Partition Tolerance Analyze the existing RDBMS schemaUnderstand the Business keys to obtain partition toleranceDesign and Modeling the Cassandra schema for high availabilityModelling the Conceptual Data Model. Understanding the ER mappingThorough understanding of the application flow based on SQL queriesIntegrating the Conceptual Model with the application driven Model and develop the Logical /Physical model.Migrating existing data from RDBMS to NoSQL CassandraPerform ETL operationsMultiple dry runs in lower environments. Ensure to face all the migrations and data compatibility issues in lower environments in order have a smooth migration in PRODUCTION.Tools used : Toad Data Modeler, DataStax Enterprise, DataStax DevCenter, SQL Developer, CQLSH, SSMS, Windows Batch scriptAchieving all the above with minimum (ZERO) downtime of the application i.e., providing Availability not only after migrating to Cassandra but also during the migration process. Show less Working as Oracle Database administration / Systems Analyst. Application Support/ Production Support and Requirement analyst. Oracle Database administration and Golden Gate Replication. Automation using SHELL Scripts.Working on technologies : Amazon Cloud(AWS), Splunk, Apache Tomcat, tcServer, IBM Websphere MQ, PingdomAgile platform - Atlassian tools - JIRA and CONFLUENCEBrand development: part of the team to establish a new brand value to the client organization.Attend workshops and training on Amazon Cloud Web services and Big Data concepts.Certified Splunk Power User.Worked in different technologies like ETL (dataware housing)Talend. Show less

  • Technical Architect

    May 2021 - now

  • DBA Technical Consultant - Cassandra Migration Expert

    Jan 2018 - Apr 2021

  • DBA Consultant / Systems Engineer

    Dec 2014 - Dec 2017

  • SE

    Apr 2013 - Nov 2014

  • ASE,Oracle DBA

    Jun 2012 - Mar 2013

  • TSE

    Mar 2011 - Jul 2012

  • TPE

    Dec 2010 - Mar 2011